--- /dev/null
+From b67882dece4df10893307467f3782237fad72d25 Mon Sep 17 00:00:00 2001
+From: "djm@openbsd.org" <djm@openbsd.org>
+Date: Thu, 13 Sep 2018 02:08:33 +0000
+Subject: [PATCH 1/5] upstream: hold our collective noses and use the
+ openssl-1.1.x API in
+
+OpenSSH; feedback and ok tb@ jsing@ markus@
+
+OpenBSD-Commit-ID: cacbcac87ce5da0d3ca7ef1b38a6f7fb349e4417
+---
+ auth2.c | 4 +-
+ cipher.c | 16 +-
+ cipher.h | 4 +-
+ dh.c | 60 +++--
+ dh.h | 2 +-
+ digest-openssl.c | 26 ++-
+ kexdhc.c | 15 +-
+ kexdhs.c | 11 +-
+ kexgexc.c | 18 +-
+ kexgexs.c | 21 +-
+ monitor.c | 6 +-
+ ssh-dss.c | 26 ++-
+ ssh-ecdsa.c | 23 +-
+ ssh-keygen.c | 61 +++--
+ ssh-pkcs11-client.c | 12 +-
+ ssh-pkcs11.c | 55 +++--
+ ssh-rsa.c | 47 ++--
+ sshd.c | 6 +-
+ sshkey.c | 637 ++++++++++++++++++++++++++++------------------------
+ sshkey.h | 7 +-
+ 20 files changed, 619 insertions(+), 438 deletions(-)
+
+diff --git a/auth2.c b/auth2.c
+index ab879589..4d19957a 100644
+--- a/auth2.c
++++ b/auth2.c
+@@ -706,7 +706,7 @@ auth2_record_key(Authctxt *authctxt, int authenticated,
+ struct sshkey **tmp, *dup;
+ int r;
+
+- if ((r = sshkey_demote(key, &dup)) != 0)
++ if ((r = sshkey_from_private(key, &dup)) != 0)
+ fatal("%s: copy key: %s", __func__, ssh_err(r));
+ sshkey_free(authctxt->auth_method_key);
+ authctxt->auth_method_key = dup;
+@@ -715,7 +715,7 @@ auth2_record_key(Authctxt *authctxt, int authenticated,
+ return;
+
+ /* If authenticated, make sure we don't accept this key again */
+- if ((r = sshkey_demote(key, &dup)) != 0)
++ if ((r = sshkey_from_private(key, &dup)) != 0)
+ fatal("%s: copy key: %s", __func__, ssh_err(r));
+ if (authctxt->nprev_keys >= INT_MAX ||
+ (tmp = recallocarray(authctxt->prev_keys, authctxt->nprev_keys,
+diff --git a/cipher.c b/cipher.c
+index a72682a8..df43826e 100644
+--- a/cipher.c
++++ b/cipher.c
+@@ -446,7 +446,7 @@ cipher_get_keyiv_len(const struct sshcipher_ctx *cc)
+ }
+
+ int
+-cipher_get_keyiv(struct sshcipher_ctx *cc, u_char *iv, u_int len)
++cipher_get_keyiv(struct sshcipher_ctx *cc, u_char *iv, size_t len)
+ {
+ #ifdef WITH_OPENSSL
+ const struct sshcipher *c = cc->cipher;
+@@ -473,7 +473,7 @@ cipher_get_keyiv(struct sshcipher_ctx *cc, u_char *iv, u_int len)
+ return 0;
+ else if (evplen < 0)
+ return SSH_ERR_LIBCRYPTO_ERROR;
+- if ((u_int)evplen != len)
++ if ((size_t)evplen != len)
+ return SSH_ERR_INVALID_ARGUMENT;
+ #ifndef OPENSSL_HAVE_EVPCTR
+ if (c->evptype == evp_aes_128_ctr)
+@@ -484,14 +484,14 @@ cipher_get_keyiv(struct sshcipher_ctx *cc, u_char *iv, u_int len)
+ if (!EVP_CIPHER_CTX_ctrl(cc->evp, EVP_CTRL_GCM_IV_GEN,
+ len, iv))
+ return SSH_ERR_LIBCRYPTO_ERROR;
+- } else
+- memcpy(iv, cc->evp->iv, len);
++ } else if (!EVP_CIPHER_CTX_get_iv(cc->evp, iv, len))
++ return SSH_ERR_LIBCRYPTO_ERROR;
+ #endif
+ return 0;
+ }
+
+ int
+-cipher_set_keyiv(struct sshcipher_ctx *cc, const u_char *iv)
++cipher_set_keyiv(struct sshcipher_ctx *cc, const u_char *iv, size_t len)
+ {
+ #ifdef WITH_OPENSSL
+ const struct sshcipher *c = cc->cipher;
+@@ -507,6 +507,8 @@ cipher_set_keyiv(struct sshcipher_ctx *cc, const u_char *iv)
+ evplen = EVP_CIPHER_CTX_iv_length(cc->evp);
+ if (evplen <= 0)
+ return SSH_ERR_LIBCRYPTO_ERROR;
++ if ((size_t)evplen != len)
++ return SSH_ERR_INVALID_ARGUMENT;
+ #ifndef OPENSSL_HAVE_EVPCTR
+ /* XXX iv arg is const, but ssh_aes_ctr_iv isn't */
+ if (c->evptype == evp_aes_128_ctr)
+@@ -518,8 +520,8 @@ cipher_set_keyiv(struct sshcipher_ctx *cc, const u_char *iv)
+ if (!EVP_CIPHER_CTX_ctrl(cc->evp,
+ EVP_CTRL_GCM_SET_IV_FIXED, -1, (void *)iv))
+ return SSH_ERR_LIBCRYPTO_ERROR;
+- } else
+- memcpy(cc->evp->iv, iv, evplen);
++ } else if (!EVP_CIPHER_CTX_set_iv(cc->evp, iv, evplen))
++ return SSH_ERR_LIBCRYPTO_ERROR;
+ #endif
+ return 0;
+ }
+diff --git a/cipher.h b/cipher.h
+index dc7ecf11..dc1571d2 100644
+--- a/cipher.h
++++ b/cipher.h
+@@ -68,8 +68,8 @@ u_int cipher_is_cbc(const struct sshcipher *);
+
+ u_int cipher_ctx_is_plaintext(struct sshcipher_ctx *);
+
+-int cipher_get_keyiv(struct sshcipher_ctx *, u_char *, u_int);
+-int cipher_set_keyiv(struct sshcipher_ctx *, const u_char *);
++int cipher_get_keyiv(struct sshcipher_ctx *, u_char *, size_t);
++int cipher_set_keyiv(struct sshcipher_ctx *, const u_char *, size_t);
+ int cipher_get_keyiv_len(const struct sshcipher_ctx *);
+
+ #endif /* CIPHER_H */
+diff --git a/dh.c b/dh.c
+index ac8d5a0a..d0d4527b 100644
+--- a/dh.c
++++ b/dh.c
+@@ -216,14 +216,17 @@ choose_dh(int min, int wantbits, int max)
+ /* diffie-hellman-groupN-sha1 */
+
+ int
+-dh_pub_is_valid(DH *dh, BIGNUM *dh_pub)
++dh_pub_is_valid(const DH *dh, const BIGNUM *dh_pub)
+ {
+ int i;
+ int n = BN_num_bits(dh_pub);
+ int bits_set = 0;
+ BIGNUM *tmp;
++ const BIGNUM *dh_p;
+
+- if (dh_pub->neg) {
++ DH_get0_pqg(dh, &dh_p, NULL, NULL);
++
++ if (BN_is_negative(dh_pub)) {
+ logit("invalid public DH value: negative");
+ return 0;
+ }
+@@ -236,7 +239,7 @@ dh_pub_is_valid(DH *dh, BIGNUM *dh_pub)
+ error("%s: BN_new failed", __func__);
+ return 0;
+ }
+- if (!BN_sub(tmp, dh->p, BN_value_one()) ||
++ if (!BN_sub(tmp, dh_p, BN_value_one()) ||
+ BN_cmp(dh_pub, tmp) != -1) { /* pub_exp > p-2 */
+ BN_clear_free(tmp);
+ logit("invalid public DH value: >= p-1");
+@@ -247,14 +250,14 @@ dh_pub_is_valid(DH *dh, BIGNUM *dh_pub)
+ for (i = 0; i <= n; i++)
+ if (BN_is_bit_set(dh_pub, i))
+ bits_set++;
+- debug2("bits set: %d/%d", bits_set, BN_num_bits(dh->p));
++ debug2("bits set: %d/%d", bits_set, BN_num_bits(dh_p));
+
+ /*
+ * if g==2 and bits_set==1 then computing log_g(dh_pub) is trivial
+ */
+ if (bits_set < 4) {
+ logit("invalid public DH value (%d/%d)",
+- bits_set, BN_num_bits(dh->p));
++ bits_set, BN_num_bits(dh_p));
+ return 0;
+ }
+ return 1;
+@@ -264,9 +267,12 @@ int
+ dh_gen_key(DH *dh, int need)
+ {
+ int pbits;
++ const BIGNUM *dh_p, *pub_key;
++
++ DH_get0_pqg(dh, &dh_p, NULL, NULL);
+
+- if (need < 0 || dh->p == NULL ||
+- (pbits = BN_num_bits(dh->p)) <= 0 ||
++ if (need < 0 || dh_p == NULL ||
++ (pbits = BN_num_bits(dh_p)) <= 0 ||
+ need > INT_MAX / 2 || 2 * need > pbits)
+ return SSH_ERR_INVALID_ARGUMENT;
+ if (need < 256)
+@@ -275,13 +281,14 @@ dh_gen_key(DH *dh, int need)
+ * Pollard Rho, Big step/Little Step attacks are O(sqrt(n)),
+ * so double requested need here.
+ */
+- dh->length = MINIMUM(need * 2, pbits - 1);
+- if (DH_generate_key(dh) == 0 ||
+- !dh_pub_is_valid(dh, dh->pub_key)) {
+- BN_clear_free(dh->priv_key);
+- dh->priv_key = NULL;
++ if (!DH_set_length(dh, MINIMUM(need * 2, pbits - 1)))
+ return SSH_ERR_LIBCRYPTO_ERROR;
+- }
++
++ if (DH_generate_key(dh) == 0)
++ return SSH_ERR_LIBCRYPTO_ERROR;
++ DH_get0_key(dh, &pub_key, NULL);
++ if (!dh_pub_is_valid(dh, pub_key))
++ return SSH_ERR_INVALID_FORMAT;
+ return 0;
+ }
+
+@@ -289,22 +296,27 @@ DH *
+ dh_new_group_asc(const char *gen, const char *modulus)
+ {
+ DH *dh;
++ BIGNUM *dh_p = NULL, *dh_g = NULL;
+
+ if ((dh = DH_new()) == NULL)
+ return NULL;
+- if (BN_hex2bn(&dh->p, modulus) == 0 ||
+- BN_hex2bn(&dh->g, gen) == 0) {
+- DH_free(dh);
+- return NULL;
+- }
+- return (dh);
++ if (BN_hex2bn(&dh_p, modulus) == 0 ||
++ BN_hex2bn(&dh_g, gen) == 0)
++ goto fail;
++ if (!DH_set0_pqg(dh, dh_p, NULL, dh_g))
++ goto fail;
++ return dh;
++ fail:
++ DH_free(dh);
++ BN_clear_free(dh_p);
++ BN_clear_free(dh_g);
++ return NULL;
+ }
+
+ /*
+ * This just returns the group, we still need to generate the exchange
+ * value.
+ */
+-
+ DH *
+ dh_new_group(BIGNUM *gen, BIGNUM *modulus)
+ {
+@@ -312,10 +324,12 @@ dh_new_group(BIGNUM *gen, BIGNUM *modulus)
+
+ if ((dh = DH_new()) == NULL)
+ return NULL;
+- dh->p = modulus;
+- dh->g = gen;
++ if (!DH_set0_pqg(dh, modulus, NULL, gen)) {
++ DH_free(dh);
++ return NULL;
++ }
+
+- return (dh);
++ return dh;
+ }
+
+ /* rfc2409 "Second Oakley Group" (1024 bits) */
+diff --git a/dh.h b/dh.h
+index bcd485cf..344b29e3 100644
+--- a/dh.h
++++ b/dh.h
+@@ -42,7 +42,7 @@ DH *dh_new_group18(void);
+ DH *dh_new_group_fallback(int);
+
+ int dh_gen_key(DH *, int);
+-int dh_pub_is_valid(DH *, BIGNUM *);
++int dh_pub_is_valid(const DH *, const BIGNUM *);
+
+ u_int dh_estimate(int);
+
+diff --git a/digest-openssl.c b/digest-openssl.c
+index 27709992..da7ed72b 100644
+--- a/digest-openssl.c
++++ b/digest-openssl.c
+@@ -43,7 +43,7 @@
+
+ struct ssh_digest_ctx {
+ int alg;
+- EVP_MD_CTX mdctx;
++ EVP_MD_CTX *mdctx;
+ };
+
+ struct ssh_digest {
+@@ -106,7 +106,7 @@ ssh_digest_bytes(int alg)
+ size_t
+ ssh_digest_blocksize(struct ssh_digest_ctx *ctx)
+ {
+- return EVP_MD_CTX_block_size(&ctx->mdctx);
++ return EVP_MD_CTX_block_size(ctx->mdctx);
+ }
+
+ struct ssh_digest_ctx *
+@@ -118,11 +118,14 @@ ssh_digest_start(int alg)
+ if (digest == NULL || ((ret = calloc(1, sizeof(*ret))) == NULL))
+ return NULL;
+ ret->alg = alg;
+- EVP_MD_CTX_init(&ret->mdctx);
+- if (EVP_DigestInit_ex(&ret->mdctx, digest->mdfunc(), NULL) != 1) {
++ if ((ret->mdctx = EVP_MD_CTX_new()) == NULL) {
+ free(ret);
+ return NULL;
+ }
++ if (EVP_DigestInit_ex(ret->mdctx, digest->mdfunc(), NULL) != 1) {
++ ssh_digest_free(ret);
++ return NULL;
++ }
+ return ret;
+ }
+
+@@ -132,7 +135,7 @@ ssh_digest_copy_state(struct ssh_digest_ctx *from, struct ssh_digest_ctx *to)
+ if (from->alg != to->alg)
+ return SSH_ERR_INVALID_ARGUMENT;
+ /* we have bcopy-style order while openssl has memcpy-style */
+- if (!EVP_MD_CTX_copy_ex(&to->mdctx, &from->mdctx))
++ if (!EVP_MD_CTX_copy_ex(to->mdctx, from->mdctx))
+ return SSH_ERR_LIBCRYPTO_ERROR;
+ return 0;
+ }
+@@ -140,7 +143,7 @@ ssh_digest_copy_state(struct ssh_digest_ctx *from, struct ssh_digest_ctx *to)
+ int
+ ssh_digest_update(struct ssh_digest_ctx *ctx, const void *m, size_t mlen)
+ {
+- if (EVP_DigestUpdate(&ctx->mdctx, m, mlen) != 1)
++ if (EVP_DigestUpdate(ctx->mdctx, m, mlen) != 1)
+ return SSH_ERR_LIBCRYPTO_ERROR;
+ return 0;
+ }
+@@ -161,7 +164,7 @@ ssh_digest_final(struct ssh_digest_ctx *ctx, u_char *d, size_t dlen)
+ return SSH_ERR_INVALID_ARGUMENT;
+ if (dlen < digest->digest_len) /* No truncation allowed */
+ return SSH_ERR_INVALID_ARGUMENT;
+- if (EVP_DigestFinal_ex(&ctx->mdctx, d, &l) != 1)
++ if (EVP_DigestFinal_ex(ctx->mdctx, d, &l) != 1)
+ return SSH_ERR_LIBCRYPTO_ERROR;
+ if (l != digest->digest_len) /* sanity */
+ return SSH_ERR_INTERNAL_ERROR;
+@@ -171,11 +174,10 @@ ssh_digest_final(struct ssh_digest_ctx *ctx, u_char *d, size_t dlen)
+ void
+ ssh_digest_free(struct ssh_digest_ctx *ctx)
+ {
+- if (ctx != NULL) {
+- EVP_MD_CTX_cleanup(&ctx->mdctx);
+- explicit_bzero(ctx, sizeof(*ctx));
+- free(ctx);
+- }
++ if (ctx == NULL)
++ return;
++ EVP_MD_CTX_free(ctx->mdctx);
++ freezero(ctx, sizeof(*ctx));
+ }
+
+ int
+diff --git a/kexdhc.c b/kexdhc.c
+index 9a9f1ea7..a8b74247 100644
+--- a/kexdhc.c
++++ b/kexdhc.c
+@@ -56,6 +56,7 @@ kexdh_client(struct ssh *ssh)
+ {
+ struct kex *kex = ssh->kex;
+ int r;
++ const BIGNUM *pub_key;
+
+ /* generate and send 'e', client DH public key */
+ switch (kex->kex_type) {
+@@ -81,15 +82,17 @@ kexdh_client(struct ssh *ssh)
+ goto out;
+ }
+ debug("sending SSH2_MSG_KEXDH_INIT");
+- if ((r = dh_gen_key(kex->dh, kex->we_need * 8)) != 0 ||
+- (r = sshpkt_start(ssh, SSH2_MSG_KEXDH_INIT)) != 0 ||
+- (r = sshpkt_put_bignum2(ssh, kex->dh->pub_key)) != 0 ||
++ if ((r = dh_gen_key(kex->dh, kex->we_need * 8)) != 0)
++ goto out;
++ DH_get0_key(kex->dh, &pub_key, NULL);
++ if ((r = sshpkt_start(ssh, SSH2_MSG_KEXDH_INIT)) != 0 ||
++ (r = sshpkt_put_bignum2(ssh, pub_key)) != 0 ||
+ (r = sshpkt_send(ssh)) != 0)
+ goto out;
+ #ifdef DEBUG_KEXDH
+ DHparams_print_fp(stderr, kex->dh);
+ fprintf(stderr, "pub= ");
+- BN_print_fp(stderr, kex->dh->pub_key);
++ BN_print_fp(stderr, pub_key);
+ fprintf(stderr, "\n");
+ #endif
+ debug("expecting SSH2_MSG_KEXDH_REPLY");
+@@ -104,6 +107,7 @@ input_kex_dh(int type, u_int32_t seq, struct ssh *ssh)
+ {
+ struct kex *kex = ssh->kex;
+ BIGNUM *dh_server_pub = NULL, *shared_secret = NULL;
++ const BIGNUM *pub_key;
+ struct sshkey *server_host_key = NULL;
+ u_char *kbuf = NULL, *server_host_key_blob = NULL, *signature = NULL;
+ u_char hash[SSH_DIGEST_MAX_LENGTH];
+@@ -168,6 +172,7 @@ input_kex_dh(int type, u_int32_t seq, struct ssh *ssh)
+ #endif
+
+ /* calc and verify H */
++ DH_get0_key(kex->dh, &pub_key, NULL);
+ hashlen = sizeof(hash);
+ if ((r = kex_dh_hash(
+ kex->hash_alg,
+@@ -176,7 +181,7 @@ input_kex_dh(int type, u_int32_t seq, struct ssh *ssh)
+ sshbuf_ptr(kex->my), sshbuf_len(kex->my),
+ sshbuf_ptr(kex->peer), sshbuf_len(kex->peer),
+ server_host_key_blob, sbloblen,
+- kex->dh->pub_key,
++ pub_key,
+ dh_server_pub,
+ shared_secret,
+ hash, &hashlen)) != 0)
+diff --git a/kexdhs.c b/kexdhs.c
+index 5dfca0a2..8367c6c3 100644
+--- a/kexdhs.c
++++ b/kexdhs.c
+@@ -95,6 +95,7 @@ input_kex_dh_init(int type, u_int32_t seq, struct ssh *ssh)
+ {
+ struct kex *kex = ssh->kex;
+ BIGNUM *shared_secret = NULL, *dh_client_pub = NULL;
++ const BIGNUM *pub_key;
+ struct sshkey *server_host_public, *server_host_private;
+ u_char *kbuf = NULL, *signature = NULL, *server_host_key_blob = NULL;
+ u_char hash[SSH_DIGEST_MAX_LENGTH];
+@@ -121,6 +122,7 @@ input_kex_dh_init(int type, u_int32_t seq, struct ssh *ssh)
+ r = SSH_ERR_ALLOC_FAIL;
+ goto out;
+ }
++ DH_get0_key(kex->dh, &pub_key, NULL);
+ if ((r = sshpkt_get_bignum2(ssh, dh_client_pub)) != 0 ||
+ (r = sshpkt_get_end(ssh)) != 0)
+ goto out;
+@@ -130,12 +132,9 @@ input_kex_dh_init(int type, u_int32_t seq, struct ssh *ssh)
+ BN_print_fp(stderr, dh_client_pub);
+ fprintf(stderr, "\n");
+ debug("bits %d", BN_num_bits(dh_client_pub));
+-#endif
+-
+-#ifdef DEBUG_KEXDH
+ DHparams_print_fp(stderr, kex->dh);
+ fprintf(stderr, "pub= ");
+- BN_print_fp(stderr, kex->dh->pub_key);
++ BN_print_fp(stderr, pub_key);
+ fprintf(stderr, "\n");
+ #endif
+ if (!dh_pub_is_valid(kex->dh, dh_client_pub)) {
+@@ -171,7 +170,7 @@ input_kex_dh_init(int type, u_int32_t seq, struct ssh *ssh)
+ sshbuf_ptr(kex->my), sshbuf_len(kex->my),
+ server_host_key_blob, sbloblen,
+ dh_client_pub,
+- kex->dh->pub_key,
++ pub_key,
+ shared_secret,
+ hash, &hashlen)) != 0)
+ goto out;
+@@ -197,7 +196,7 @@ input_kex_dh_init(int type, u_int32_t seq, struct ssh *ssh)
+ /* send server hostkey, DH pubkey 'f' and signed H */
+ if ((r = sshpkt_start(ssh, SSH2_MSG_KEXDH_REPLY)) != 0 ||
+ (r = sshpkt_put_string(ssh, server_host_key_blob, sbloblen)) != 0 ||
+- (r = sshpkt_put_bignum2(ssh, kex->dh->pub_key)) != 0 || /* f */
++ (r = sshpkt_put_bignum2(ssh, pub_key)) != 0 || /* f */
+ (r = sshpkt_put_string(ssh, signature, slen)) != 0 ||
+ (r = sshpkt_send(ssh)) != 0)
+ goto out;
+diff --git a/kexgexc.c b/kexgexc.c
+index 762a9a32..955bc837 100644
+--- a/kexgexc.c
++++ b/kexgexc.c
+@@ -93,6 +93,7 @@ input_kex_dh_gex_group(int type, u_int32_t seq, struct ssh *ssh)
+ {
+ struct kex *kex = ssh->kex;
+ BIGNUM *p = NULL, *g = NULL;
++ const BIGNUM *pub_key;
+ int r, bits;
+
+ debug("got SSH2_MSG_KEX_DH_GEX_GROUP");
+@@ -118,16 +119,18 @@ input_kex_dh_gex_group(int type, u_int32_t seq, struct ssh *ssh)
+ p = g = NULL; /* belong to kex->dh now */
+
+ /* generate and send 'e', client DH public key */
+- if ((r = dh_gen_key(kex->dh, kex->we_need * 8)) != 0 ||
+- (r = sshpkt_start(ssh, SSH2_MSG_KEX_DH_GEX_INIT)) != 0 ||
+- (r = sshpkt_put_bignum2(ssh, kex->dh->pub_key)) != 0 ||
++ if ((r = dh_gen_key(kex->dh, kex->we_need * 8)) != 0)
++ goto out;
++ DH_get0_key(kex->dh, &pub_key, NULL);
++ if ((r = sshpkt_start(ssh, SSH2_MSG_KEX_DH_GEX_INIT)) != 0 ||
++ (r = sshpkt_put_bignum2(ssh, pub_key)) != 0 ||
+ (r = sshpkt_send(ssh)) != 0)
+ goto out;
+ debug("SSH2_MSG_KEX_DH_GEX_INIT sent");
+ #ifdef DEBUG_KEXDH
+ DHparams_print_fp(stderr, kex->dh);
+ fprintf(stderr, "pub= ");
+- BN_print_fp(stderr, kex->dh->pub_key);
++ BN_print_fp(stderr, pub_key);
+ fprintf(stderr, "\n");
+ #endif
+ ssh_dispatch_set(ssh, SSH2_MSG_KEX_DH_GEX_GROUP, NULL);
+@@ -144,6 +147,7 @@ input_kex_dh_gex_reply(int type, u_int32_t seq, struct ssh *ssh)
+ {
+ struct kex *kex = ssh->kex;
+ BIGNUM *dh_server_pub = NULL, *shared_secret = NULL;
++ const BIGNUM *pub_key, *dh_p, *dh_g;
+ struct sshkey *server_host_key = NULL;
+ u_char *kbuf = NULL, *signature = NULL, *server_host_key_blob = NULL;
+ u_char hash[SSH_DIGEST_MAX_LENGTH];
+@@ -211,6 +215,8 @@ input_kex_dh_gex_reply(int type, u_int32_t seq, struct ssh *ssh)
+ kex->min = kex->max = -1;
+
+ /* calc and verify H */
++ DH_get0_key(kex->dh, &pub_key, NULL);
++ DH_get0_pqg(kex->dh, &dh_p, NULL, &dh_g);
+ hashlen = sizeof(hash);
+ if ((r = kexgex_hash(
+ kex->hash_alg,
+@@ -220,8 +226,8 @@ input_kex_dh_gex_reply(int type, u_int32_t seq, struct ssh *ssh)
+ sshbuf_ptr(kex->peer), sshbuf_len(kex->peer),
+ server_host_key_blob, sbloblen,
+ kex->min, kex->nbits, kex->max,
+- kex->dh->p, kex->dh->g,
+- kex->dh->pub_key,
++ dh_p, dh_g,
++ pub_key,
+ dh_server_pub,
+ shared_secret,
+ hash, &hashlen)) != 0)
+diff --git a/kexgexs.c b/kexgexs.c
+index f6983fd6..2a4aa7e8 100644
+--- a/kexgexs.c
++++ b/kexgexs.c
+@@ -72,6 +72,7 @@ input_kex_dh_gex_request(int type, u_int32_t seq, struct ssh *ssh)
+ struct kex *kex = ssh->kex;
+ int r;
+ u_int min = 0, max = 0, nbits = 0;
++ const BIGNUM *dh_p, *dh_g;
+
+ debug("SSH2_MSG_KEX_DH_GEX_REQUEST received");
+ if ((r = sshpkt_get_u32(ssh, &min)) != 0 ||
+@@ -101,9 +102,10 @@ input_kex_dh_gex_request(int type, u_int32_t seq, struct ssh *ssh)
+ goto out;
+ }
+ debug("SSH2_MSG_KEX_DH_GEX_GROUP sent");
++ DH_get0_pqg(kex->dh, &dh_p, NULL, &dh_g);
+ if ((r = sshpkt_start(ssh, SSH2_MSG_KEX_DH_GEX_GROUP)) != 0 ||
+- (r = sshpkt_put_bignum2(ssh, kex->dh->p)) != 0 ||
+- (r = sshpkt_put_bignum2(ssh, kex->dh->g)) != 0 ||
++ (r = sshpkt_put_bignum2(ssh, dh_p)) != 0 ||
++ (r = sshpkt_put_bignum2(ssh, dh_g)) != 0 ||
+ (r = sshpkt_send(ssh)) != 0)
+ goto out;
+
+@@ -123,6 +125,7 @@ input_kex_dh_gex_init(int type, u_int32_t seq, struct ssh *ssh)
+ {
+ struct kex *kex = ssh->kex;
+ BIGNUM *shared_secret = NULL, *dh_client_pub = NULL;
++ const BIGNUM *pub_key, *dh_p, *dh_g;
+ struct sshkey *server_host_public, *server_host_private;
+ u_char *kbuf = NULL, *signature = NULL, *server_host_key_blob = NULL;
+ u_char hash[SSH_DIGEST_MAX_LENGTH];
+@@ -153,17 +156,17 @@ input_kex_dh_gex_init(int type, u_int32_t seq, struct ssh *ssh)
+ (r = sshpkt_get_end(ssh)) != 0)
+ goto out;
+
++ DH_get0_key(kex->dh, &pub_key, NULL);
++ DH_get0_pqg(kex->dh, &dh_p, NULL, &dh_g);
++
+ #ifdef DEBUG_KEXDH
+ fprintf(stderr, "dh_client_pub= ");
+ BN_print_fp(stderr, dh_client_pub);
+ fprintf(stderr, "\n");
+ debug("bits %d", BN_num_bits(dh_client_pub));
+-#endif
+-
+-#ifdef DEBUG_KEXDH
+ DHparams_print_fp(stderr, kex->dh);
+ fprintf(stderr, "pub= ");
+- BN_print_fp(stderr, kex->dh->pub_key);
++ BN_print_fp(stderr, pub_key);
+ fprintf(stderr, "\n");
+ #endif
+ if (!dh_pub_is_valid(kex->dh, dh_client_pub)) {
+@@ -199,9 +202,9 @@ input_kex_dh_gex_init(int type, u_int32_t seq, struct ssh *ssh)
+ sshbuf_ptr(kex->my), sshbuf_len(kex->my),
+ server_host_key_blob, sbloblen,
+ kex->min, kex->nbits, kex->max,
+- kex->dh->p, kex->dh->g,
++ dh_p, dh_g,
+ dh_client_pub,
+- kex->dh->pub_key,
++ pub_key,
+ shared_secret,
+ hash, &hashlen)) != 0)
+ goto out;
+@@ -227,7 +230,7 @@ input_kex_dh_gex_init(int type, u_int32_t seq, struct ssh *ssh)
+ /* send server hostkey, DH pubkey 'f' and signed H */
+ if ((r = sshpkt_start(ssh, SSH2_MSG_KEX_DH_GEX_REPLY)) != 0 ||
+ (r = sshpkt_put_string(ssh, server_host_key_blob, sbloblen)) != 0 ||
+- (r = sshpkt_put_bignum2(ssh, kex->dh->pub_key)) != 0 || /* f */
++ (r = sshpkt_put_bignum2(ssh, pub_key)) != 0 || /* f */
+ (r = sshpkt_put_string(ssh, signature, slen)) != 0 ||
+ (r = sshpkt_send(ssh)) != 0)
+ goto out;
+diff --git a/monitor.c b/monitor.c
+index d4b4b047..b30813b4 100644
+--- a/monitor.c
++++ b/monitor.c
+@@ -566,6 +566,7 @@ int
+ mm_answer_moduli(int sock, struct sshbuf *m)
+ {
+ DH *dh;
++ const BIGNUM *dh_p, *dh_g;
+ int r;
+ u_int min, want, max;
+
+@@ -590,9 +591,10 @@ mm_answer_moduli(int sock, struct sshbuf *m)
+ return (0);
+ } else {
+ /* Send first bignum */
++ DH_get0_pqg(dh, &dh_p, NULL, &dh_g);
+ if ((r = sshbuf_put_u8(m, 1)) != 0 ||
+- (r = sshbuf_put_bignum2(m, dh->p)) != 0 ||
+- (r = sshbuf_put_bignum2(m, dh->g)) != 0)
++ (r = sshbuf_put_bignum2(m, dh_p)) != 0 ||
++ (r = sshbuf_put_bignum2(m, dh_g)) != 0)
+ fatal("%s: buffer error: %s", __func__, ssh_err(r));
+
+ DH_free(dh);
+diff --git a/ssh-dss.c b/ssh-dss.c
+index 9f832ee2..631b1571 100644
+--- a/ssh-dss.c
++++ b/ssh-dss.c
+@@ -51,6 +51,7 @@ ssh_dss_sign(const struct sshkey *key, u_char **sigp, size_t *lenp,
+ const u_char *data, size_t datalen, u_int compat)
+ {
+ DSA_SIG *sig = NULL;
++ const BIGNUM *sig_r, *sig_s;
+ u_char digest[SSH_DIGEST_MAX_LENGTH], sigblob[SIGBLOB_LEN];
+ size_t rlen, slen, len, dlen = ssh_digest_bytes(SSH_DIGEST_SHA1);
+ struct sshbuf *b = NULL;
+@@ -76,15 +77,16 @@ ssh_dss_sign(const struct sshkey *key, u_char **sigp, size_t *lenp,
+ goto out;
+ }
+
+- rlen = BN_num_bytes(sig->r);
+- slen = BN_num_bytes(sig->s);
++ DSA_SIG_get0(sig, &sig_r, &sig_s);
++ rlen = BN_num_bytes(sig_r);
++ slen = BN_num_bytes(sig_s);
+ if (rlen > INTBLOB_LEN || slen > INTBLOB_LEN) {
+ ret = SSH_ERR_INTERNAL_ERROR;
+ goto out;
+ }
+ explicit_bzero(sigblob, SIGBLOB_LEN);
+- BN_bn2bin(sig->r, sigblob + SIGBLOB_LEN - INTBLOB_LEN - rlen);
+- BN_bn2bin(sig->s, sigblob + SIGBLOB_LEN - slen);
++ BN_bn2bin(sig_r, sigblob + SIGBLOB_LEN - INTBLOB_LEN - rlen);
++ BN_bn2bin(sig_s, sigblob + SIGBLOB_LEN - slen);
+
+ if ((b = sshbuf_new()) == NULL) {
+ ret = SSH_ERR_ALLOC_FAIL;
+@@ -118,6 +120,7 @@ ssh_dss_verify(const struct sshkey *key,
+ const u_char *data, size_t datalen, u_int compat)
+ {
+ DSA_SIG *sig = NULL;
++ BIGNUM *sig_r = NULL, *sig_s = NULL;
+ u_char digest[SSH_DIGEST_MAX_LENGTH], *sigblob = NULL;
+ size_t len, dlen = ssh_digest_bytes(SSH_DIGEST_SHA1);
+ int ret = SSH_ERR_INTERNAL_ERROR;
+@@ -155,16 +158,21 @@ ssh_dss_verify(const struct sshkey *key,
+
+ /* parse signature */
+ if ((sig = DSA_SIG_new()) == NULL ||
+- (sig->r = BN_new()) == NULL ||
+- (sig->s = BN_new()) == NULL) {
++ (sig_r = BN_new()) == NULL ||
++ (sig_s = BN_new()) == NULL) {
+ ret = SSH_ERR_ALLOC_FAIL;
+ goto out;
+ }
+- if ((BN_bin2bn(sigblob, INTBLOB_LEN, sig->r) == NULL) ||
+- (BN_bin2bn(sigblob+ INTBLOB_LEN, INTBLOB_LEN, sig->s) == NULL)) {
++ if ((BN_bin2bn(sigblob, INTBLOB_LEN, sig_r) == NULL) ||
++ (BN_bin2bn(sigblob + INTBLOB_LEN, INTBLOB_LEN, sig_s) == NULL)) {
+ ret = SSH_ERR_LIBCRYPTO_ERROR;
+ goto out;
+ }
++ if (!DSA_SIG_set0(sig, sig_r, sig_s)) {
++ ret = SSH_ERR_LIBCRYPTO_ERROR;
++ goto out;
++ }
++ sig_r = sig_s = NULL; /* transferred */
+
+ /* sha1 the data */
+ if ((ret = ssh_digest_memory(SSH_DIGEST_SHA1, data, datalen,
+@@ -186,6 +194,8 @@ ssh_dss_verify(const struct sshkey *key,
+ out:
+ explicit_bzero(digest, sizeof(digest));
+ DSA_SIG_free(sig);
++ BN_clear_free(sig_r);
++ BN_clear_free(sig_s);
+ sshbuf_free(b);
+ free(ktype);
+ if (sigblob != NULL) {
+diff --git a/ssh-ecdsa.c b/ssh-ecdsa.c
+index 3d3b78d7..9e92af04 100644
+--- a/ssh-ecdsa.c
++++ b/ssh-ecdsa.c
+@@ -49,6 +49,7 @@ ssh_ecdsa_sign(const struct sshkey *key, u_char **sigp, size_t *lenp,
+ const u_char *data, size_t datalen, u_int compat)
+ {
+ ECDSA_SIG *sig = NULL;
++ const BIGNUM *sig_r, *sig_s;
+ int hash_alg;
+ u_char digest[SSH_DIGEST_MAX_LENGTH];
+ size_t len, dlen;
+@@ -80,8 +81,9 @@ ssh_ecdsa_sign(const struct sshkey *key, u_char **sigp, size_t *lenp,
+ ret = SSH_ERR_ALLOC_FAIL;
+ goto out;
+ }
+- if ((ret = sshbuf_put_bignum2(bb, sig->r)) != 0 ||
+- (ret = sshbuf_put_bignum2(bb, sig->s)) != 0)
++ ECDSA_SIG_get0(sig, &sig_r, &sig_s);
++ if ((ret = sshbuf_put_bignum2(bb, sig_r)) != 0 ||
++ (ret = sshbuf_put_bignum2(bb, sig_s)) != 0)
+ goto out;
+ if ((ret = sshbuf_put_cstring(b, sshkey_ssh_name_plain(key))) != 0 ||
+ (ret = sshbuf_put_stringb(b, bb)) != 0)
+@@ -112,6 +114,7 @@ ssh_ecdsa_verify(const struct sshkey *key,
+ const u_char *data, size_t datalen, u_int compat)
+ {
+ ECDSA_SIG *sig = NULL;
++ BIGNUM *sig_r = NULL, *sig_s = NULL;
+ int hash_alg;
+ u_char digest[SSH_DIGEST_MAX_LENGTH];
+ size_t dlen;
+@@ -146,15 +149,23 @@ ssh_ecdsa_verify(const struct sshkey *key,
+ }
+
+ /* parse signature */
+- if ((sig = ECDSA_SIG_new()) == NULL) {
++ if ((sig = ECDSA_SIG_new()) == NULL ||
++ (sig_r = BN_new()) == NULL ||
++ (sig_s = BN_new()) == NULL) {
+ ret = SSH_ERR_ALLOC_FAIL;
+ goto out;
+ }
+- if (sshbuf_get_bignum2(sigbuf, sig->r) != 0 ||
+- sshbuf_get_bignum2(sigbuf, sig->s) != 0) {
++ if (sshbuf_get_bignum2(sigbuf, sig_r) != 0 ||
++ sshbuf_get_bignum2(sigbuf, sig_s) != 0) {
+ ret = SSH_ERR_INVALID_FORMAT;
+ goto out;
+ }
++ if (!ECDSA_SIG_set0(sig, sig_r, sig_s)) {
++ ret = SSH_ERR_LIBCRYPTO_ERROR;
++ goto out;
++ }
++ sig_r = sig_s = NULL; /* transferred */
++
+ if (sshbuf_len(sigbuf) != 0) {
+ ret = SSH_ERR_UNEXPECTED_TRAILING_DATA;
+ goto out;
+@@ -180,6 +191,8 @@ ssh_ecdsa_verify(const struct sshkey *key,
+ sshbuf_free(sigbuf);
+ sshbuf_free(b);
+ ECDSA_SIG_free(sig);
++ BN_clear_free(sig_r);
++ BN_clear_free(sig_s);
+ free(ktype);
+ return ret;
+ }
+diff --git a/ssh-keygen.c b/ssh-keygen.c
+index 22860ad9..f240af66 100644
+--- a/ssh-keygen.c
++++ b/ssh-keygen.c
+@@ -450,7 +450,10 @@ do_convert_private_ssh2_from_blob(u_char *blob, u_int blen)
+ u_int magic, i1, i2, i3, i4;
+ size_t slen;
+ u_long e;
+-
++ BIGNUM *dsa_p = NULL, *dsa_q = NULL, *dsa_g = NULL;
++ BIGNUM *dsa_pub_key = NULL, *dsa_priv_key = NULL;
++ BIGNUM *rsa_n = NULL, *rsa_e = NULL, *rsa_d = NULL;
++ BIGNUM *rsa_p = NULL, *rsa_q = NULL, *rsa_iqmp = NULL;
+ if ((b = sshbuf_from(blob, blen)) == NULL)
+ fatal("%s: sshbuf_from failed", __func__);
+ if ((r = sshbuf_get_u32(b, &magic)) != 0)
+@@ -494,11 +497,23 @@ do_convert_private_ssh2_from_blob(u_char *blob, u_int blen)
+
+ switch (key->type) {
+ case KEY_DSA:
+- buffer_get_bignum_bits(b, key->dsa->p);
+- buffer_get_bignum_bits(b, key->dsa->g);
+- buffer_get_bignum_bits(b, key->dsa->q);
+- buffer_get_bignum_bits(b, key->dsa->pub_key);
+- buffer_get_bignum_bits(b, key->dsa->priv_key);
++ if ((dsa_p = BN_new()) == NULL ||
++ (dsa_q = BN_new()) == NULL ||
++ (dsa_g = BN_new()) == NULL ||
++ (dsa_pub_key = BN_new()) == NULL ||
++ (dsa_priv_key = BN_new()) == NULL)
++ fatal("%s: BN_new", __func__);
++ buffer_get_bignum_bits(b, dsa_p);
++ buffer_get_bignum_bits(b, dsa_g);
++ buffer_get_bignum_bits(b, dsa_q);
++ buffer_get_bignum_bits(b, dsa_pub_key);
++ buffer_get_bignum_bits(b, dsa_priv_key);
++ if (!DSA_set0_pqg(key->dsa, dsa_p, dsa_q, dsa_g))
++ fatal("%s: DSA_set0_pqg failed", __func__);
++ dsa_p = dsa_q = dsa_g = NULL; /* transferred */
++ if (!DSA_set0_key(key->dsa, dsa_pub_key, dsa_priv_key))
++ fatal("%s: DSA_set0_key failed", __func__);
++ dsa_pub_key = dsa_priv_key = NULL; /* transferred */
+ break;
+ case KEY_RSA:
+ if ((r = sshbuf_get_u8(b, &e1)) != 0 ||
+@@ -515,18 +530,34 @@ do_convert_private_ssh2_from_blob(u_char *blob, u_int blen)
+ e += e3;
+ debug("e %lx", e);
+ }
+- if (!BN_set_word(key->rsa->e, e)) {
++ if ((rsa_e = BN_new()) == NULL)
++ fatal("%s: BN_new", __func__);
++ if (!BN_set_word(rsa_e, e)) {
++ BN_clear_free(rsa_e);
+ sshbuf_free(b);
+ sshkey_free(key);
+ return NULL;
+ }
+- buffer_get_bignum_bits(b, key->rsa->d);
+- buffer_get_bignum_bits(b, key->rsa->n);
+- buffer_get_bignum_bits(b, key->rsa->iqmp);
+- buffer_get_bignum_bits(b, key->rsa->q);
+- buffer_get_bignum_bits(b, key->rsa->p);
+- if ((r = ssh_rsa_generate_additional_parameters(key)) != 0)
++ if ((rsa_n = BN_new()) == NULL ||
++ (rsa_d = BN_new()) == NULL ||
++ (rsa_p = BN_new()) == NULL ||
++ (rsa_q = BN_new()) == NULL ||
++ (rsa_iqmp = BN_new()) == NULL)
++ fatal("%s: BN_new", __func__);
++ buffer_get_bignum_bits(b, rsa_d);
++ buffer_get_bignum_bits(b, rsa_n);
++ buffer_get_bignum_bits(b, rsa_iqmp);
++ buffer_get_bignum_bits(b, rsa_q);
++ buffer_get_bignum_bits(b, rsa_p);
++ if (!RSA_set0_key(key->rsa, rsa_n, rsa_e, rsa_d))
++ fatal("%s: RSA_set0_key failed", __func__);
++ rsa_n = rsa_e = rsa_d = NULL; /* transferred */
++ if (!RSA_set0_factors(key->rsa, rsa_p, rsa_q))
++ fatal("%s: RSA_set0_factors failed", __func__);
++ rsa_p = rsa_q = NULL; /* transferred */
++ if ((r = ssh_rsa_complete_crt_parameters(key, rsa_iqmp)) != 0)
+ fatal("generate RSA parameters failed: %s", ssh_err(r));
++ BN_clear_free(rsa_iqmp);
+ break;
+ }
+ rlen = sshbuf_len(b);
+@@ -634,7 +665,7 @@ do_convert_from_pkcs8(struct sshkey **k, int *private)
+ identity_file);
+ }
+ fclose(fp);
+- switch (EVP_PKEY_type(pubkey->type)) {
++ switch (EVP_PKEY_base_id(pubkey)) {
+ case EVP_PKEY_RSA:
+ if ((*k = sshkey_new(KEY_UNSPEC)) == NULL)
+ fatal("sshkey_new failed");
+@@ -658,7 +689,7 @@ do_convert_from_pkcs8(struct sshkey **k, int *private)
+ #endif
+ default:
+ fatal("%s: unsupported pubkey type %d", __func__,
+- EVP_PKEY_type(pubkey->type));
++ EVP_PKEY_base_id(pubkey));
+ }
+ EVP_PKEY_free(pubkey);
+ return;
+diff --git a/ssh-pkcs11-client.c b/ssh-pkcs11-client.c
+index 028b272c..bcc18c6b 100644
+--- a/ssh-pkcs11-client.c
++++ b/ssh-pkcs11-client.c
+@@ -156,12 +156,14 @@ pkcs11_rsa_private_encrypt(int flen, const u_char *from, u_char *to, RSA *rsa,
+ static int
+ wrap_key(RSA *rsa)
+ {
+- static RSA_METHOD helper_rsa;
++ static RSA_METHOD *helper_rsa;
+
+- memcpy(&helper_rsa, RSA_get_default_method(), sizeof(helper_rsa));
+- helper_rsa.name = "ssh-pkcs11-helper";
+- helper_rsa.rsa_priv_enc = pkcs11_rsa_private_encrypt;
+- RSA_set_method(rsa, &helper_rsa);
++ if ((helper_rsa = RSA_meth_dup(RSA_get_default_method())) == NULL)
++ fatal("%s: RSA_meth_dup failed", __func__);
++ if (!RSA_meth_set1_name(helper_rsa, "ssh-pkcs11-helper") ||
++ !RSA_meth_set_priv_enc(helper_rsa, pkcs11_rsa_private_encrypt))
++ fatal("%s: failed to prepare method", __func__);
++ RSA_set_method(rsa, helper_rsa);
+ return (0);
+ }
+
+diff --git a/ssh-pkcs11.c b/ssh-pkcs11.c
+index 65a7b589..c35f9415 100644
+--- a/ssh-pkcs11.c
++++ b/ssh-pkcs11.c
+@@ -67,7 +67,7 @@ struct pkcs11_key {
+ struct pkcs11_provider *provider;
+ CK_ULONG slotidx;
+ int (*orig_finish)(RSA *rsa);
+- RSA_METHOD rsa_method;
++ RSA_METHOD *rsa_method;
+ char *keyid;
+ int keyid_len;
+ };
+@@ -182,6 +182,7 @@ pkcs11_rsa_finish(RSA *rsa)
+ rv = k11->orig_finish(rsa);
+ if (k11->provider)
+ pkcs11_provider_unref(k11->provider);
++ RSA_meth_free(k11->rsa_method);
+ free(k11->keyid);
+ free(k11);
+ }
+@@ -326,13 +327,18 @@ pkcs11_rsa_wrap(struct pkcs11_provider *provider, CK_ULONG slotidx,
+ k11->keyid = xmalloc(k11->keyid_len);
+ memcpy(k11->keyid, keyid_attrib->pValue, k11->keyid_len);
+ }
+- k11->orig_finish = def->finish;
+- memcpy(&k11->rsa_method, def, sizeof(k11->rsa_method));
+- k11->rsa_method.name = "pkcs11";
+- k11->rsa_method.rsa_priv_enc = pkcs11_rsa_private_encrypt;
+- k11->rsa_method.rsa_priv_dec = pkcs11_rsa_private_decrypt;
+- k11->rsa_method.finish = pkcs11_rsa_finish;
+- RSA_set_method(rsa, &k11->rsa_method);
++ k11->rsa_method = RSA_meth_dup(def);
++ if (k11->rsa_method == NULL)
++ fatal("%s: RSA_meth_dup failed", __func__);
++ k11->orig_finish = RSA_meth_get_finish(def);
++ if (!RSA_meth_set1_name(k11->rsa_method, "pkcs11") ||
++ !RSA_meth_set_priv_enc(k11->rsa_method,
++ pkcs11_rsa_private_encrypt) ||
++ !RSA_meth_set_priv_dec(k11->rsa_method,
++ pkcs11_rsa_private_decrypt) ||
++ !RSA_meth_set_finish(k11->rsa_method, pkcs11_rsa_finish))
++ fatal("%s: setup pkcs11 method failed", __func__);
++ RSA_set_method(rsa, k11->rsa_method);
+ RSA_set_app_data(rsa, k11);
+ return (0);
+ }
+@@ -444,6 +450,15 @@ pkcs11_key_included(struct sshkey ***keysp, int *nkeys, struct sshkey *key)
+ return (0);
+ }
+
++static int
++have_rsa_key(const RSA *rsa)
++{
++ const BIGNUM *rsa_n, *rsa_e;
++
++ RSA_get0_key(rsa, &rsa_n, &rsa_e, NULL);
++ return rsa_n != NULL && rsa_e != NULL;
++}
++
+ static int
+ pkcs11_fetch_keys_filter(struct pkcs11_provider *p, CK_ULONG slotidx,
+ CK_ATTRIBUTE filter[], CK_ATTRIBUTE attribs[3],
+@@ -512,10 +527,20 @@ pkcs11_fetch_keys_filter(struct pkcs11_provider *p, CK_ULONG slotidx,
+ if ((rsa = RSA_new()) == NULL) {
+ error("RSA_new failed");
+ } else {
+- rsa->n = BN_bin2bn(attribs[1].pValue,
++ BIGNUM *rsa_n, *rsa_e;
++
++ rsa_n = BN_bin2bn(attribs[1].pValue,
+ attribs[1].ulValueLen, NULL);
+- rsa->e = BN_bin2bn(attribs[2].pValue,
++ rsa_e = BN_bin2bn(attribs[2].pValue,
+ attribs[2].ulValueLen, NULL);
++ if (rsa_n != NULL && rsa_e != NULL) {
++ if (!RSA_set0_key(rsa,
++ rsa_n, rsa_e, NULL))
++ fatal("%s: set key", __func__);
++ rsa_n = rsa_e = NULL; /* transferred */
++ }
++ BN_free(rsa_n);
++ BN_free(rsa_e);
+ }
+ } else {
+ cp = attribs[2].pValue;
+@@ -525,16 +550,16 @@ pkcs11_fetch_keys_filter(struct pkcs11_provider *p, CK_ULONG slotidx,
+ == NULL) {
+ error("d2i_X509 failed");
+ } else if ((evp = X509_get_pubkey(x509)) == NULL ||
+- evp->type != EVP_PKEY_RSA ||
+- evp->pkey.rsa == NULL) {
++ EVP_PKEY_base_id(evp) != EVP_PKEY_RSA ||
++ EVP_PKEY_get0_RSA(evp) == NULL) {
+ debug("X509_get_pubkey failed or no rsa");
+- } else if ((rsa = RSAPublicKey_dup(evp->pkey.rsa))
+- == NULL) {
++ } else if ((rsa = RSAPublicKey_dup(
++ EVP_PKEY_get0_RSA(evp))) == NULL) {
+ error("RSAPublicKey_dup");
+ }
+ X509_free(x509);
+ }
+- if (rsa && rsa->n && rsa->e &&
++ if (rsa && have_rsa_key(rsa) &&
+ pkcs11_rsa_wrap(p, slotidx, &attribs[0], rsa) == 0) {
+ if ((key = sshkey_new(KEY_UNSPEC)) == NULL)
+ fatal("sshkey_new failed");
+diff --git a/ssh-rsa.c b/ssh-rsa.c
+index 1756315b..2788f334 100644
+--- a/ssh-rsa.c
++++ b/ssh-rsa.c
+@@ -104,38 +104,55 @@ rsa_hash_alg_nid(int type)
+ }
+
+ int
+-ssh_rsa_generate_additional_parameters(struct sshkey *key)
++ssh_rsa_complete_crt_parameters(struct sshkey *key, const BIGNUM *iqmp)
+ {
+- BIGNUM *aux = NULL;
++ const BIGNUM *rsa_p, *rsa_q, *rsa_d;
++ BIGNUM *aux = NULL, *d_consttime = NULL;
++ BIGNUM *rsa_dmq1 = NULL, *rsa_dmp1 = NULL, *rsa_iqmp = NULL;
+ BN_CTX *ctx = NULL;
+- BIGNUM d;
+ int r;
+
+ if (key == NULL || key->rsa == NULL ||
+ sshkey_type_plain(key->type) != KEY_RSA)
+ return SSH_ERR_INVALID_ARGUMENT;
+
++ RSA_get0_key(key->rsa, NULL, NULL, &rsa_d);
++ RSA_get0_factors(key->rsa, &rsa_p, &rsa_q);
++
+ if ((ctx = BN_CTX_new()) == NULL)
+ return SSH_ERR_ALLOC_FAIL;
+- if ((aux = BN_new()) == NULL) {
++ if ((aux = BN_new()) == NULL ||
++ (rsa_dmq1 = BN_new()) == NULL ||
++ (rsa_dmp1 = BN_new()) == NULL)
++ return SSH_ERR_ALLOC_FAIL;
++ if ((d_consttime = BN_dup(rsa_d)) == NULL ||
++ (rsa_iqmp = BN_dup(iqmp)) == NULL) {
+ r = SSH_ERR_ALLOC_FAIL;
+ goto out;
+ }
+ BN_set_flags(aux, BN_FLG_CONSTTIME);
++ BN_set_flags(d_consttime, BN_FLG_CONSTTIME);
+
+- BN_init(&d);
+- BN_with_flags(&d, key->rsa->d, BN_FLG_CONSTTIME);
+-
+- if ((BN_sub(aux, key->rsa->q, BN_value_one()) == 0) ||
+- (BN_mod(key->rsa->dmq1, &d, aux, ctx) == 0) ||
+- (BN_sub(aux, key->rsa->p, BN_value_one()) == 0) ||
+- (BN_mod(key->rsa->dmp1, &d, aux, ctx) == 0)) {
++ if ((BN_sub(aux, rsa_q, BN_value_one()) == 0) ||
++ (BN_mod(rsa_dmq1, d_consttime, aux, ctx) == 0) ||
++ (BN_sub(aux, rsa_p, BN_value_one()) == 0) ||
++ (BN_mod(rsa_dmp1, d_consttime, aux, ctx) == 0)) {
++ r = SSH_ERR_LIBCRYPTO_ERROR;
++ goto out;
++ }
++ if (!RSA_set0_crt_params(key->rsa, rsa_dmp1, rsa_dmq1, rsa_iqmp)) {
+ r = SSH_ERR_LIBCRYPTO_ERROR;
+ goto out;
+ }
++ rsa_dmp1 = rsa_dmq1 = rsa_iqmp = NULL; /* transferred */
++ /* success */
+ r = 0;
+ out:
+ BN_clear_free(aux);
++ BN_clear_free(d_consttime);
++ BN_clear_free(rsa_dmp1);
++ BN_clear_free(rsa_dmq1);
++ BN_clear_free(rsa_iqmp);
+ BN_CTX_free(ctx);
+ return r;
+ }
+@@ -145,6 +162,7 @@ int
+ ssh_rsa_sign(const struct sshkey *key, u_char **sigp, size_t *lenp,
+ const u_char *data, size_t datalen, const char *alg_ident)
+ {
++ const BIGNUM *rsa_n;
+ u_char digest[SSH_DIGEST_MAX_LENGTH], *sig = NULL;
+ size_t slen = 0;
+ u_int dlen, len;
+@@ -163,7 +181,8 @@ ssh_rsa_sign(const struct sshkey *key, u_char **sigp, size_t *lenp,
+ if (key == NULL || key->rsa == NULL || hash_alg == -1 ||
+ sshkey_type_plain(key->type) != KEY_RSA)
+ return SSH_ERR_INVALID_ARGUMENT;
+- if (BN_num_bits(key->rsa->n) < SSH_RSA_MINIMUM_MODULUS_SIZE)
++ RSA_get0_key(key->rsa, &rsa_n, NULL, NULL);
++ if (BN_num_bits(rsa_n) < SSH_RSA_MINIMUM_MODULUS_SIZE)
+ return SSH_ERR_KEY_LENGTH;
+ slen = RSA_size(key->rsa);
+ if (slen <= 0 || slen > SSHBUF_MAX_BIGNUM)
+@@ -225,6 +244,7 @@ ssh_rsa_verify(const struct sshkey *key,
+ const u_char *sig, size_t siglen, const u_char *data, size_t datalen,
+ const char *alg)
+ {
++ const BIGNUM *rsa_n;
+ char *sigtype = NULL;
+ int hash_alg, want_alg, ret = SSH_ERR_INTERNAL_ERROR;
+ size_t len = 0, diff, modlen, dlen;
+@@ -235,7 +255,8 @@ ssh_rsa_verify(const struct sshkey *key,
+ sshkey_type_plain(key->type) != KEY_RSA ||
+ sig == NULL || siglen == 0)
+ return SSH_ERR_INVALID_ARGUMENT;
+- if (BN_num_bits(key->rsa->n) < SSH_RSA_MINIMUM_MODULUS_SIZE)
++ RSA_get0_key(key->rsa, &rsa_n, NULL, NULL);
++ if (BN_num_bits(rsa_n) < SSH_RSA_MINIMUM_MODULUS_SIZE)
+ return SSH_ERR_KEY_LENGTH;
+
+ if ((b = sshbuf_from(sig, siglen)) == NULL)
+diff --git a/sshd.c b/sshd.c
+index a738c3ab..98beb1ed 100644
+--- a/sshd.c
++++ b/sshd.c
+@@ -493,8 +493,8 @@ demote_sensitive_data(void)
+
+ for (i = 0; i < options.num_host_key_files; i++) {
+ if (sensitive_data.host_keys[i]) {
+- if ((r = sshkey_demote(sensitive_data.host_keys[i],
+- &tmp)) != 0)
++ if ((r = sshkey_from_private(
++ sensitive_data.host_keys[i], &tmp)) != 0)
+ fatal("could not demote host %s key: %s",
+ sshkey_type(sensitive_data.host_keys[i]),
+ ssh_err(r));
+@@ -1772,7 +1772,7 @@ main(int ac, char **av)
+ error("Error loading host key \"%s\": %s",
+ options.host_key_files[i], ssh_err(r));
+ if (pubkey == NULL && key != NULL)
+- if ((r = sshkey_demote(key, &pubkey)) != 0)
++ if ((r = sshkey_from_private(key, &pubkey)) != 0)
+ fatal("Could not demote key: \"%s\": %s",
+ options.host_key_files[i], ssh_err(r));
+ sensitive_data.host_keys[i] = key;
+diff --git a/sshkey.c b/sshkey.c
+index 72c08c7e..a5e6e60e 100644
+--- a/sshkey.c
++++ b/sshkey.c
+@@ -288,14 +288,24 @@ sshkey_names_valid2(const char *names, int allow_wildcard)
+ u_int
+ sshkey_size(const struct sshkey *k)
+ {
++#ifdef WITH_OPENSSL
++ const BIGNUM *rsa_n, *dsa_p;
++#endif /* WITH_OPENSSL */
++
+ switch (k->type) {
+ #ifdef WITH_OPENSSL
+ case KEY_RSA:
+ case KEY_RSA_CERT:
+- return BN_num_bits(k->rsa->n);
++ if (k->rsa == NULL)
++ return 0;
++ RSA_get0_key(k->rsa, &rsa_n, NULL, NULL);
++ return BN_num_bits(rsa_n);
+ case KEY_DSA:
+ case KEY_DSA_CERT:
+- return BN_num_bits(k->dsa->p);
++ if (k->dsa == NULL)
++ return 0;
++ DSA_get0_pqg(k->dsa, &dsa_p, NULL, NULL);
++ return BN_num_bits(dsa_p);
+ case KEY_ECDSA:
+ case KEY_ECDSA_CERT:
+ return sshkey_curve_nid_to_bits(k->ecdsa_nid);
+@@ -500,10 +510,7 @@ sshkey_new(int type)
+ #ifdef WITH_OPENSSL
+ case KEY_RSA:
+ case KEY_RSA_CERT:
+- if ((rsa = RSA_new()) == NULL ||
+- (rsa->n = BN_new()) == NULL ||
+- (rsa->e = BN_new()) == NULL) {
+- RSA_free(rsa);
++ if ((rsa = RSA_new()) == NULL) {
+ free(k);
+ return NULL;
+ }
+@@ -511,12 +518,7 @@ sshkey_new(int type)
+ break;
+ case KEY_DSA:
+ case KEY_DSA_CERT:
+- if ((dsa = DSA_new()) == NULL ||
+- (dsa->p = BN_new()) == NULL ||
+- (dsa->q = BN_new()) == NULL ||
+- (dsa->g = BN_new()) == NULL ||
+- (dsa->pub_key = BN_new()) == NULL) {
+- DSA_free(dsa);
++ if ((dsa = DSA_new()) == NULL) {
+ free(k);
+ return NULL;
+ }
+@@ -550,47 +552,7 @@ sshkey_new(int type)
+ return k;
+ }
+
+-int
+-sshkey_add_private(struct sshkey *k)
+-{
+- switch (k->type) {
+-#ifdef WITH_OPENSSL
+- case KEY_RSA:
+- case KEY_RSA_CERT:
+-#define bn_maybe_alloc_failed(p) (p == NULL && (p = BN_new()) == NULL)
+- if (bn_maybe_alloc_failed(k->rsa->d) ||
+- bn_maybe_alloc_failed(k->rsa->iqmp) ||
+- bn_maybe_alloc_failed(k->rsa->q) ||
+- bn_maybe_alloc_failed(k->rsa->p) ||
+- bn_maybe_alloc_failed(k->rsa->dmq1) ||
+- bn_maybe_alloc_failed(k->rsa->dmp1))
+- return SSH_ERR_ALLOC_FAIL;
+- break;
+- case KEY_DSA:
+- case KEY_DSA_CERT:
+- if (bn_maybe_alloc_failed(k->dsa->priv_key))
+- return SSH_ERR_ALLOC_FAIL;
+- break;
+-#undef bn_maybe_alloc_failed
+- case KEY_ECDSA:
+- case KEY_ECDSA_CERT:
+- /* Cannot do anything until we know the group */
+- break;
+-#endif /* WITH_OPENSSL */
+- case KEY_ED25519:
+- case KEY_ED25519_CERT:
+- case KEY_XMSS:
+- case KEY_XMSS_CERT:
+- /* no need to prealloc */
+- break;
+- case KEY_UNSPEC:
+- break;
+- default:
+- return SSH_ERR_INVALID_ARGUMENT;
+- }
+- return 0;
+-}
+-
++/* XXX garbage-collect this API */
+ struct sshkey *
+ sshkey_new_private(int type)
+ {
+@@ -598,10 +560,6 @@ sshkey_new_private(int type)
+
+ if (k == NULL)
+ return NULL;
+- if (sshkey_add_private(k) != 0) {
+- sshkey_free(k);
+- return NULL;
+- }
+ return k;
+ }
+
+@@ -683,9 +641,15 @@ cert_compare(struct sshkey_cert *a, struct sshkey_cert *b)
+ int
+ sshkey_equal_public(const struct sshkey *a, const struct sshkey *b)
+ {
+-#if defined(WITH_OPENSSL) && defined(OPENSSL_HAS_ECC)
++#if defined(WITH_OPENSSL)
++ const BIGNUM *rsa_e_a, *rsa_n_a;
++ const BIGNUM *rsa_e_b, *rsa_n_b;
++ const BIGNUM *dsa_p_a, *dsa_q_a, *dsa_g_a, *dsa_pub_key_a;
++ const BIGNUM *dsa_p_b, *dsa_q_b, *dsa_g_b, *dsa_pub_key_b;
++# if defined(OPENSSL_HAS_ECC)
+ BN_CTX *bnctx;
+-#endif /* WITH_OPENSSL && OPENSSL_HAS_ECC */
++# endif /* OPENSSL_HAS_ECC */
++#endif /* WITH_OPENSSL */
+
+ if (a == NULL || b == NULL ||
+ sshkey_type_plain(a->type) != sshkey_type_plain(b->type))
+@@ -695,16 +659,24 @@ sshkey_equal_public(const struct sshkey *a, const struct sshkey *b)
+ #ifdef WITH_OPENSSL
+ case KEY_RSA_CERT:
+ case KEY_RSA:
+- return a->rsa != NULL && b->rsa != NULL &&
+- BN_cmp(a->rsa->e, b->rsa->e) == 0 &&
+- BN_cmp(a->rsa->n, b->rsa->n) == 0;
++ if (a->rsa == NULL || b->rsa == NULL)
++ return 0;
++ RSA_get0_key(a->rsa, &rsa_n_a, &rsa_e_a, NULL);
++ RSA_get0_key(b->rsa, &rsa_n_b, &rsa_e_b, NULL);
++ return BN_cmp(rsa_e_a, rsa_e_b) == 0 &&
++ BN_cmp(rsa_n_a, rsa_n_b) == 0;
+ case KEY_DSA_CERT:
+ case KEY_DSA:
+- return a->dsa != NULL && b->dsa != NULL &&
+- BN_cmp(a->dsa->p, b->dsa->p) == 0 &&
+- BN_cmp(a->dsa->q, b->dsa->q) == 0 &&
+- BN_cmp(a->dsa->g, b->dsa->g) == 0 &&
+- BN_cmp(a->dsa->pub_key, b->dsa->pub_key) == 0;
++ if (a->dsa == NULL || b->dsa == NULL)
++ return 0;
++ DSA_get0_pqg(a->dsa, &dsa_p_a, &dsa_q_a, &dsa_g_a);
++ DSA_get0_pqg(b->dsa, &dsa_p_b, &dsa_q_b, &dsa_g_b);
++ DSA_get0_key(a->dsa, &dsa_pub_key_a, NULL);
++ DSA_get0_key(b->dsa, &dsa_pub_key_b, NULL);
++ return BN_cmp(dsa_p_a, dsa_p_b) == 0 &&
++ BN_cmp(dsa_q_a, dsa_q_b) == 0 &&
++ BN_cmp(dsa_g_a, dsa_g_b) == 0 &&
++ BN_cmp(dsa_pub_key_a, dsa_pub_key_b) == 0;
+ # ifdef OPENSSL_HAS_ECC
+ case KEY_ECDSA_CERT:
+ case KEY_ECDSA:
+@@ -761,6 +733,9 @@ to_blob_buf(const struct sshkey *key, struct sshbuf *b, int force_plain,
+ {
+ int type, ret = SSH_ERR_INTERNAL_ERROR;
+ const char *typename;
++#ifdef WITH_OPENSSL
++ const BIGNUM *rsa_n, *rsa_e, *dsa_p, *dsa_q, *dsa_g, *dsa_pub_key;
++#endif /* WITH_OPENSSL */
+
+ if (key == NULL)
+ return SSH_ERR_INVALID_ARGUMENT;
+@@ -793,11 +768,13 @@ to_blob_buf(const struct sshkey *key, struct sshbuf *b, int force_plain,
+ case KEY_DSA:
+ if (key->dsa == NULL)
+ return SSH_ERR_INVALID_ARGUMENT;
++ DSA_get0_pqg(key->dsa, &dsa_p, &dsa_q, &dsa_g);
++ DSA_get0_key(key->dsa, &dsa_pub_key, NULL);
+ if ((ret = sshbuf_put_cstring(b, typename)) != 0 ||
+- (ret = sshbuf_put_bignum2(b, key->dsa->p)) != 0 ||
+- (ret = sshbuf_put_bignum2(b, key->dsa->q)) != 0 ||
+- (ret = sshbuf_put_bignum2(b, key->dsa->g)) != 0 ||
+- (ret = sshbuf_put_bignum2(b, key->dsa->pub_key)) != 0)
++ (ret = sshbuf_put_bignum2(b, dsa_p)) != 0 ||
++ (ret = sshbuf_put_bignum2(b, dsa_q)) != 0 ||
++ (ret = sshbuf_put_bignum2(b, dsa_g)) != 0 ||
++ (ret = sshbuf_put_bignum2(b, dsa_pub_key)) != 0)
+ return ret;
+ break;
+ # ifdef OPENSSL_HAS_ECC
+@@ -814,9 +791,10 @@ to_blob_buf(const struct sshkey *key, struct sshbuf *b, int force_plain,
+ case KEY_RSA:
+ if (key->rsa == NULL)
+ return SSH_ERR_INVALID_ARGUMENT;
++ RSA_get0_key(key->rsa, &rsa_n, &rsa_e, NULL);
+ if ((ret = sshbuf_put_cstring(b, typename)) != 0 ||
+- (ret = sshbuf_put_bignum2(b, key->rsa->e)) != 0 ||
+- (ret = sshbuf_put_bignum2(b, key->rsa->n)) != 0)
++ (ret = sshbuf_put_bignum2(b, rsa_e)) != 0 ||
++ (ret = sshbuf_put_bignum2(b, rsa_n)) != 0)
+ return ret;
+ break;
+ #endif /* WITH_OPENSSL */
+@@ -1750,59 +1728,95 @@ sshkey_from_private(const struct sshkey *k, struct sshkey **pkp)
+ {
+ struct sshkey *n = NULL;
+ int ret = SSH_ERR_INTERNAL_ERROR;
++ int r = SSH_ERR_INTERNAL_ERROR;
++#ifdef WITH_OPENSSL
++ const BIGNUM *rsa_n, *rsa_e;
++ BIGNUM *rsa_n_dup = NULL, *rsa_e_dup = NULL;
++ const BIGNUM *dsa_p, *dsa_q, *dsa_g, *dsa_pub_key;
++ BIGNUM *dsa_p_dup = NULL, *dsa_q_dup = NULL, *dsa_g_dup = NULL;
++ BIGNUM *dsa_pub_key_dup = NULL;
++#endif /* WITH_OPENSSL */
+
+ *pkp = NULL;
+ switch (k->type) {
+ #ifdef WITH_OPENSSL
+ case KEY_DSA:
+ case KEY_DSA_CERT:
+- if ((n = sshkey_new(k->type)) == NULL)
+- return SSH_ERR_ALLOC_FAIL;
+- if ((BN_copy(n->dsa->p, k->dsa->p) == NULL) ||
+- (BN_copy(n->dsa->q, k->dsa->q) == NULL) ||
+- (BN_copy(n->dsa->g, k->dsa->g) == NULL) ||
+- (BN_copy(n->dsa->pub_key, k->dsa->pub_key) == NULL)) {
+- sshkey_free(n);
+- return SSH_ERR_ALLOC_FAIL;
++ if ((n = sshkey_new(k->type)) == NULL) {
++ r = SSH_ERR_ALLOC_FAIL;
++ goto out;
++ }
++
++ DSA_get0_pqg(k->dsa, &dsa_p, &dsa_q, &dsa_g);
++ DSA_get0_key(k->dsa, &dsa_pub_key, NULL);
++ if ((dsa_p_dup = BN_dup(dsa_p)) == NULL ||
++ (dsa_q_dup = BN_dup(dsa_q)) == NULL ||
++ (dsa_g_dup = BN_dup(dsa_g)) == NULL ||
++ (dsa_pub_key_dup = BN_dup(dsa_pub_key)) == NULL) {
++ r = SSH_ERR_ALLOC_FAIL;
++ goto out;
++ }
++ if (!DSA_set0_pqg(n->dsa, dsa_p_dup, dsa_q_dup, dsa_g_dup)) {
++ r = SSH_ERR_LIBCRYPTO_ERROR;
++ goto out;
++ }
++ dsa_p_dup = dsa_q_dup = dsa_g_dup = NULL; /* transferred */
++ if (!DSA_set0_key(n->dsa, dsa_pub_key_dup, NULL)) {
++ r = SSH_ERR_LIBCRYPTO_ERROR;
++ goto out;
+ }
++ dsa_pub_key_dup = NULL; /* transferred */
++
+ break;
+ # ifdef OPENSSL_HAS_ECC
+ case KEY_ECDSA:
+ case KEY_ECDSA_CERT:
+- if ((n = sshkey_new(k->type)) == NULL)
+- return SSH_ERR_ALLOC_FAIL;
++ if ((n = sshkey_new(k->type)) == NULL) {
++ r = SSH_ERR_ALLOC_FAIL;
++ goto out;
++ }
+ n->ecdsa_nid = k->ecdsa_nid;
+ n->ecdsa = EC_KEY_new_by_curve_name(k->ecdsa_nid);
+ if (n->ecdsa == NULL) {
+- sshkey_free(n);
+- return SSH_ERR_ALLOC_FAIL;
++ r = SSH_ERR_ALLOC_FAIL;
++ goto out;
+ }
+ if (EC_KEY_set_public_key(n->ecdsa,
+ EC_KEY_get0_public_key(k->ecdsa)) != 1) {
+- sshkey_free(n);
+- return SSH_ERR_LIBCRYPTO_ERROR;
++ r = SSH_ERR_LIBCRYPTO_ERROR;
++ goto out;
+ }
+ break;
+ # endif /* OPENSSL_HAS_ECC */
+ case KEY_RSA:
+ case KEY_RSA_CERT:
+- if ((n = sshkey_new(k->type)) == NULL)
+- return SSH_ERR_ALLOC_FAIL;
+- if ((BN_copy(n->rsa->n, k->rsa->n) == NULL) ||
+- (BN_copy(n->rsa->e, k->rsa->e) == NULL)) {
+- sshkey_free(n);
+- return SSH_ERR_ALLOC_FAIL;
++ if ((n = sshkey_new(k->type)) == NULL) {
++ r = SSH_ERR_ALLOC_FAIL;
++ goto out;
+ }
++ RSA_get0_key(k->rsa, &rsa_n, &rsa_e, NULL);
++ if ((rsa_n_dup = BN_dup(rsa_n)) == NULL ||
++ (rsa_e_dup = BN_dup(rsa_e)) == NULL) {
++ r = SSH_ERR_ALLOC_FAIL;
++ goto out;
++ }
++ if (!RSA_set0_key(n->rsa, rsa_n_dup, rsa_e_dup, NULL)) {
++ r = SSH_ERR_LIBCRYPTO_ERROR;
++ goto out;
++ }
++ rsa_n_dup = rsa_e_dup = NULL; /* transferred */
+ break;
+ #endif /* WITH_OPENSSL */
+ case KEY_ED25519:
+ case KEY_ED25519_CERT:
+- if ((n = sshkey_new(k->type)) == NULL)
+- return SSH_ERR_ALLOC_FAIL;
++ if ((n = sshkey_new(k->type)) == NULL) {
++ r = SSH_ERR_ALLOC_FAIL;
++ goto out;
++ }
+ if (k->ed25519_pk != NULL) {
+ if ((n->ed25519_pk = malloc(ED25519_PK_SZ)) == NULL) {
+- sshkey_free(n);
+- return SSH_ERR_ALLOC_FAIL;
++ r = SSH_ERR_ALLOC_FAIL;
++ goto out;
+ }
+ memcpy(n->ed25519_pk, k->ed25519_pk, ED25519_PK_SZ);
+ }
+@@ -1810,37 +1824,46 @@ sshkey_from_private(const struct sshkey *k, struct sshkey **pkp)
+ #ifdef WITH_XMSS
+ case KEY_XMSS:
+ case KEY_XMSS_CERT:
+- if ((n = sshkey_new(k->type)) == NULL)
+- return SSH_ERR_ALLOC_FAIL;
+- if ((ret = sshkey_xmss_init(n, k->xmss_name)) != 0) {
+- sshkey_free(n);
+- return ret;
++ if ((n = sshkey_new(k->type)) == NULL) {
++ r = SSH_ERR_ALLOC_FAIL;
++ goto out;
+ }
++ if ((r = sshkey_xmss_init(n, k->xmss_name)) != 0)
++ goto out;
+ if (k->xmss_pk != NULL) {
+ size_t pklen = sshkey_xmss_pklen(k);
+ if (pklen == 0 || sshkey_xmss_pklen(n) != pklen) {
+- sshkey_free(n);
+- return SSH_ERR_INTERNAL_ERROR;
++ r = SSH_ERR_INTERNAL_ERROR;
++ goto out;
+ }
+ if ((n->xmss_pk = malloc(pklen)) == NULL) {
+- sshkey_free(n);
+- return SSH_ERR_ALLOC_FAIL;
++ r = SSH_ERR_ALLOC_FAIL;
++ goto out;
+ }
+ memcpy(n->xmss_pk, k->xmss_pk, pklen);
+ }
+ break;
+ #endif /* WITH_XMSS */
+ default:
+- return SSH_ERR_KEY_TYPE_UNKNOWN;
+- }
+- if (sshkey_is_cert(k)) {
+- if ((ret = sshkey_cert_copy(k, n)) != 0) {
+- sshkey_free(n);
+- return ret;
+- }
++ r = SSH_ERR_KEY_TYPE_UNKNOWN;
++ goto out;
+ }
++ if (sshkey_is_cert(k) && (r = sshkey_cert_copy(k, n)) != 0)
++ goto out;
++ /* success */
+ *pkp = n;
+- return 0;
++ n = NULL;
++ r = 0;
++ out:
++ sshkey_free(n);
++ BN_clear_free(rsa_n_dup);
++ BN_clear_free(rsa_e_dup);
++ BN_clear_free(dsa_p_dup);
++ BN_clear_free(dsa_q_dup);
++ BN_clear_free(dsa_g_dup);
++ BN_clear_free(dsa_pub_key_dup);
++
++ return r;
+ }
+
+ static int
+@@ -1966,6 +1989,17 @@ cert_parse(struct sshbuf *b, struct sshkey *key, struct sshbuf *certbuf)
+ return ret;
+ }
+
++static int
++check_rsa_length(const RSA *rsa)
++{
++ const BIGNUM *rsa_n;
++
++ RSA_get0_key(rsa, &rsa_n, NULL, NULL);
++ if (BN_num_bits(rsa_n) < SSH_RSA_MINIMUM_MODULUS_SIZE)
++ return SSH_ERR_KEY_LENGTH;
++ return 0;
++}
++
+ static int
+ sshkey_from_blob_internal(struct sshbuf *b, struct sshkey **keyp,
+ int allow_cert)
+@@ -1976,9 +2010,13 @@ sshkey_from_blob_internal(struct sshbuf *b, struct sshkey **keyp,
+ size_t len;
+ u_char *pk = NULL;
+ struct sshbuf *copy;
+-#if defined(WITH_OPENSSL) && defined(OPENSSL_HAS_ECC)
++#if defined(WITH_OPENSSL)
++ BIGNUM *rsa_n = NULL, *rsa_e = NULL;
++ BIGNUM *dsa_p = NULL, *dsa_q = NULL, *dsa_g = NULL, *dsa_pub_key = NULL;
++# if defined(OPENSSL_HAS_ECC)
+ EC_POINT *q = NULL;
+-#endif /* WITH_OPENSSL && OPENSSL_HAS_ECC */
++# endif /* OPENSSL_HAS_ECC */
++#endif /* WITH_OPENSSL */
+
+ #ifdef DEBUG_PK /* XXX */
+ sshbuf_dump(b, stderr);
+@@ -2013,15 +2051,23 @@ sshkey_from_blob_internal(struct sshbuf *b, struct sshkey **keyp,
+ ret = SSH_ERR_ALLOC_FAIL;
+ goto out;
+ }
+- if (sshbuf_get_bignum2(b, key->rsa->e) != 0 ||
+- sshbuf_get_bignum2(b, key->rsa->n) != 0) {
++ if ((rsa_e = BN_new()) == NULL ||
++ (rsa_n = BN_new()) == NULL) {
++ ret = SSH_ERR_ALLOC_FAIL;
++ goto out;
++ }
++ if (sshbuf_get_bignum2(b, rsa_e) != 0 ||
++ sshbuf_get_bignum2(b, rsa_n) != 0) {
+ ret = SSH_ERR_INVALID_FORMAT;
+ goto out;
+ }
+- if (BN_num_bits(key->rsa->n) < SSH_RSA_MINIMUM_MODULUS_SIZE) {
+- ret = SSH_ERR_KEY_LENGTH;
++ if (!RSA_set0_key(key->rsa, rsa_n, rsa_e, NULL)) {
++ ret = SSH_ERR_LIBCRYPTO_ERROR;
+ goto out;
+ }
++ rsa_n = rsa_e = NULL; /* transferred */
++ if ((ret = check_rsa_length(key->rsa)) != 0)
++ goto out;
+ #ifdef DEBUG_PK
+ RSA_print_fp(stderr, key->rsa, 8);
+ #endif
+@@ -2038,13 +2084,30 @@ sshkey_from_blob_internal(struct sshbuf *b, struct sshkey **keyp,
+ ret = SSH_ERR_ALLOC_FAIL;
+ goto out;
+ }
+- if (sshbuf_get_bignum2(b, key->dsa->p) != 0 ||
+- sshbuf_get_bignum2(b, key->dsa->q) != 0 ||
+- sshbuf_get_bignum2(b, key->dsa->g) != 0 ||
+- sshbuf_get_bignum2(b, key->dsa->pub_key) != 0) {
++ if ((dsa_p = BN_new()) == NULL ||
++ (dsa_q = BN_new()) == NULL ||
++ (dsa_g = BN_new()) == NULL ||
++ (dsa_pub_key = BN_new()) == NULL) {
++ ret = SSH_ERR_ALLOC_FAIL;
++ goto out;
++ }
++ if (sshbuf_get_bignum2(b, dsa_p) != 0 ||
++ sshbuf_get_bignum2(b, dsa_q) != 0 ||
++ sshbuf_get_bignum2(b, dsa_g) != 0 ||
++ sshbuf_get_bignum2(b, dsa_pub_key) != 0) {
+ ret = SSH_ERR_INVALID_FORMAT;
+ goto out;
+ }
++ if (!DSA_set0_pqg(key->dsa, dsa_p, dsa_q, dsa_g)) {
++ ret = SSH_ERR_LIBCRYPTO_ERROR;
++ goto out;
++ }
++ dsa_p = dsa_q = dsa_g = NULL; /* transferred */
++ if (!DSA_set0_key(key->dsa, dsa_pub_key, NULL)) {
++ ret = SSH_ERR_LIBCRYPTO_ERROR;
++ goto out;
++ }
++ dsa_pub_key = NULL; /* transferred */
+ #ifdef DEBUG_PK
+ DSA_print_fp(stderr, key->dsa, 8);
+ #endif
+@@ -2178,9 +2241,17 @@ sshkey_from_blob_internal(struct sshbuf *b, struct sshkey **keyp,
+ free(ktype);
+ free(curve);
+ free(pk);
+-#if defined(WITH_OPENSSL) && defined(OPENSSL_HAS_ECC)
++#if defined(WITH_OPENSSL)
++ BN_clear_free(rsa_n);
++ BN_clear_free(rsa_e);
++ BN_clear_free(dsa_p);
++ BN_clear_free(dsa_q);
++ BN_clear_free(dsa_g);
++ BN_clear_free(dsa_pub_key);
++# if defined(OPENSSL_HAS_ECC)
+ EC_POINT_free(q);
+-#endif /* WITH_OPENSSL && OPENSSL_HAS_ECC */
++# endif /* OPENSSL_HAS_ECC */
++#endif /* WITH_OPENSSL */
+ return ret;
+ }
+
+@@ -2361,120 +2432,6 @@ sshkey_verify(const struct sshkey *key,
+ }
+ }
+
+-/* Converts a private to a public key */
+-int
+-sshkey_demote(const struct sshkey *k, struct sshkey **dkp)
+-{
+- struct sshkey *pk;
+- int ret = SSH_ERR_INTERNAL_ERROR;
+-
+- *dkp = NULL;
+- if ((pk = calloc(1, sizeof(*pk))) == NULL)
+- return SSH_ERR_ALLOC_FAIL;
+- pk->type = k->type;
+- pk->flags = k->flags;
+- pk->ecdsa_nid = k->ecdsa_nid;
+- pk->dsa = NULL;
+- pk->ecdsa = NULL;
+- pk->rsa = NULL;
+- pk->ed25519_pk = NULL;
+- pk->ed25519_sk = NULL;
+- pk->xmss_pk = NULL;
+- pk->xmss_sk = NULL;
+-
+- switch (k->type) {
+-#ifdef WITH_OPENSSL
+- case KEY_RSA_CERT:
+- if ((ret = sshkey_cert_copy(k, pk)) != 0)
+- goto fail;
+- /* FALLTHROUGH */
+- case KEY_RSA:
+- if ((pk->rsa = RSA_new()) == NULL ||
+- (pk->rsa->e = BN_dup(k->rsa->e)) == NULL ||
+- (pk->rsa->n = BN_dup(k->rsa->n)) == NULL) {
+- ret = SSH_ERR_ALLOC_FAIL;
+- goto fail;
+- }
+- break;
+- case KEY_DSA_CERT:
+- if ((ret = sshkey_cert_copy(k, pk)) != 0)
+- goto fail;
+- /* FALLTHROUGH */
+- case KEY_DSA:
+- if ((pk->dsa = DSA_new()) == NULL ||
+- (pk->dsa->p = BN_dup(k->dsa->p)) == NULL ||
+- (pk->dsa->q = BN_dup(k->dsa->q)) == NULL ||
+- (pk->dsa->g = BN_dup(k->dsa->g)) == NULL ||
+- (pk->dsa->pub_key = BN_dup(k->dsa->pub_key)) == NULL) {
+- ret = SSH_ERR_ALLOC_FAIL;
+- goto fail;
+- }
+- break;
+- case KEY_ECDSA_CERT:
+- if ((ret = sshkey_cert_copy(k, pk)) != 0)
+- goto fail;
+- /* FALLTHROUGH */
+-# ifdef OPENSSL_HAS_ECC
+- case KEY_ECDSA:
+- pk->ecdsa = EC_KEY_new_by_curve_name(pk->ecdsa_nid);
+- if (pk->ecdsa == NULL) {
+- ret = SSH_ERR_ALLOC_FAIL;
+- goto fail;
+- }
+- if (EC_KEY_set_public_key(pk->ecdsa,
+- EC_KEY_get0_public_key(k->ecdsa)) != 1) {
+- ret = SSH_ERR_LIBCRYPTO_ERROR;
+- goto fail;
+- }
+- break;
+-# endif /* OPENSSL_HAS_ECC */
+-#endif /* WITH_OPENSSL */
+- case KEY_ED25519_CERT:
+- if ((ret = sshkey_cert_copy(k, pk)) != 0)
+- goto fail;
+- /* FALLTHROUGH */
+- case KEY_ED25519:
+- if (k->ed25519_pk != NULL) {
+- if ((pk->ed25519_pk = malloc(ED25519_PK_SZ)) == NULL) {
+- ret = SSH_ERR_ALLOC_FAIL;
+- goto fail;
+- }
+- memcpy(pk->ed25519_pk, k->ed25519_pk, ED25519_PK_SZ);
+- }
+- break;
+-#ifdef WITH_XMSS
+- case KEY_XMSS_CERT:
+- if ((ret = sshkey_cert_copy(k, pk)) != 0)
+- goto fail;
+- /* FALLTHROUGH */
+- case KEY_XMSS:
+- if ((ret = sshkey_xmss_init(pk, k->xmss_name)) != 0)
+- goto fail;
+- if (k->xmss_pk != NULL) {
+- size_t pklen = sshkey_xmss_pklen(k);
+-
+- if (pklen == 0 || sshkey_xmss_pklen(pk) != pklen) {
+- ret = SSH_ERR_INTERNAL_ERROR;
+- goto fail;
+- }
+- if ((pk->xmss_pk = malloc(pklen)) == NULL) {
+- ret = SSH_ERR_ALLOC_FAIL;
+- goto fail;
+- }
+- memcpy(pk->xmss_pk, k->xmss_pk, pklen);
+- }
+- break;
+-#endif /* WITH_XMSS */
+- default:
+- ret = SSH_ERR_KEY_TYPE_UNKNOWN;
+- fail:
+- sshkey_free(pk);
+- return ret;
+- }
+- *dkp = pk;
+- return 0;
+-}
+-
+ /* Convert a plain key to their _CERT equivalent */
+ int
+ sshkey_to_certified(struct sshkey *k)
+@@ -2532,6 +2489,9 @@ sshkey_certify_custom(struct sshkey *k, struct sshkey *ca, const char *alg,
+ size_t i, ca_len, sig_len;
+ int ret = SSH_ERR_INTERNAL_ERROR;
+ struct sshbuf *cert;
++#ifdef WITH_OPENSSL
++ const BIGNUM *rsa_n, *rsa_e, *dsa_p, *dsa_q, *dsa_g, *dsa_pub_key;
++#endif /* WITH_OPENSSL */
+
+ if (k == NULL || k->cert == NULL ||
+ k->cert->certblob == NULL || ca == NULL)
+@@ -2558,10 +2518,12 @@ sshkey_certify_custom(struct sshkey *k, struct sshkey *ca, const char *alg,
+ switch (k->type) {
+ #ifdef WITH_OPENSSL
+ case KEY_DSA_CERT:
+- if ((ret = sshbuf_put_bignum2(cert, k->dsa->p)) != 0 ||
+- (ret = sshbuf_put_bignum2(cert, k->dsa->q)) != 0 ||
+- (ret = sshbuf_put_bignum2(cert, k->dsa->g)) != 0 ||
+- (ret = sshbuf_put_bignum2(cert, k->dsa->pub_key)) != 0)
++ DSA_get0_pqg(k->dsa, &dsa_p, &dsa_q, &dsa_g);
++ DSA_get0_key(k->dsa, &dsa_pub_key, NULL);
++ if ((ret = sshbuf_put_bignum2(cert, dsa_p)) != 0 ||
++ (ret = sshbuf_put_bignum2(cert, dsa_q)) != 0 ||
++ (ret = sshbuf_put_bignum2(cert, dsa_g)) != 0 ||
++ (ret = sshbuf_put_bignum2(cert, dsa_pub_key)) != 0)
+ goto out;
+ break;
+ # ifdef OPENSSL_HAS_ECC
+@@ -2575,8 +2537,9 @@ sshkey_certify_custom(struct sshkey *k, struct sshkey *ca, const char *alg,
+ break;
+ # endif /* OPENSSL_HAS_ECC */
+ case KEY_RSA_CERT:
+- if ((ret = sshbuf_put_bignum2(cert, k->rsa->e)) != 0 ||
+- (ret = sshbuf_put_bignum2(cert, k->rsa->n)) != 0)
++ RSA_get0_key(k->rsa, &rsa_n, &rsa_e, NULL);
++ if ((ret = sshbuf_put_bignum2(cert, rsa_e)) != 0 ||
++ (ret = sshbuf_put_bignum2(cert, rsa_n)) != 0)
+ goto out;
+ break;
+ #endif /* WITH_OPENSSL */
+@@ -2758,18 +2721,25 @@ sshkey_private_serialize_opt(const struct sshkey *key, struct sshbuf *b,
+ enum sshkey_serialize_rep opts)
+ {
+ int r = SSH_ERR_INTERNAL_ERROR;
++#ifdef WITH_OPENSSL
++ const BIGNUM *rsa_n, *rsa_e, *rsa_d, *rsa_iqmp, *rsa_p, *rsa_q;
++ const BIGNUM *dsa_p, *dsa_q, *dsa_g, *dsa_pub_key, *dsa_priv_key;
++#endif /* WITH_OPENSSL */
+
+ if ((r = sshbuf_put_cstring(b, sshkey_ssh_name(key))) != 0)
+ goto out;
+ switch (key->type) {
+ #ifdef WITH_OPENSSL
+ case KEY_RSA:
+- if ((r = sshbuf_put_bignum2(b, key->rsa->n)) != 0 ||
+- (r = sshbuf_put_bignum2(b, key->rsa->e)) != 0 ||
+- (r = sshbuf_put_bignum2(b, key->rsa->d)) != 0 ||
+- (r = sshbuf_put_bignum2(b, key->rsa->iqmp)) != 0 ||
+- (r = sshbuf_put_bignum2(b, key->rsa->p)) != 0 ||
+- (r = sshbuf_put_bignum2(b, key->rsa->q)) != 0)
++ RSA_get0_key(key->rsa, &rsa_n, &rsa_e, &rsa_d);
++ RSA_get0_factors(key->rsa, &rsa_p, &rsa_q);
++ RSA_get0_crt_params(key->rsa, NULL, NULL, &rsa_iqmp);
++ if ((r = sshbuf_put_bignum2(b, rsa_n)) != 0 ||
++ (r = sshbuf_put_bignum2(b, rsa_e)) != 0 ||
++ (r = sshbuf_put_bignum2(b, rsa_d)) != 0 ||
++ (r = sshbuf_put_bignum2(b, rsa_iqmp)) != 0 ||
++ (r = sshbuf_put_bignum2(b, rsa_p)) != 0 ||
++ (r = sshbuf_put_bignum2(b, rsa_q)) != 0)
+ goto out;
+ break;
+ case KEY_RSA_CERT:
+@@ -2777,19 +2747,24 @@ sshkey_private_serialize_opt(const struct sshkey *key, struct sshbuf *b,
+ r = SSH_ERR_INVALID_ARGUMENT;
+ goto out;
+ }
++ RSA_get0_key(key->rsa, NULL, NULL, &rsa_d);
++ RSA_get0_factors(key->rsa, &rsa_p, &rsa_q);
++ RSA_get0_crt_params(key->rsa, NULL, NULL, &rsa_iqmp);
+ if ((r = sshbuf_put_stringb(b, key->cert->certblob)) != 0 ||
+- (r = sshbuf_put_bignum2(b, key->rsa->d)) != 0 ||
+- (r = sshbuf_put_bignum2(b, key->rsa->iqmp)) != 0 ||
+- (r = sshbuf_put_bignum2(b, key->rsa->p)) != 0 ||
+- (r = sshbuf_put_bignum2(b, key->rsa->q)) != 0)
++ (r = sshbuf_put_bignum2(b, rsa_d)) != 0 ||
++ (r = sshbuf_put_bignum2(b, rsa_iqmp)) != 0 ||
++ (r = sshbuf_put_bignum2(b, rsa_p)) != 0 ||
++ (r = sshbuf_put_bignum2(b, rsa_q)) != 0)
+ goto out;
+ break;
+ case KEY_DSA:
+- if ((r = sshbuf_put_bignum2(b, key->dsa->p)) != 0 ||
+- (r = sshbuf_put_bignum2(b, key->dsa->q)) != 0 ||
+- (r = sshbuf_put_bignum2(b, key->dsa->g)) != 0 ||
+- (r = sshbuf_put_bignum2(b, key->dsa->pub_key)) != 0 ||
+- (r = sshbuf_put_bignum2(b, key->dsa->priv_key)) != 0)
++ DSA_get0_pqg(key->dsa, &dsa_p, &dsa_q, &dsa_g);
++ DSA_get0_key(key->dsa, &dsa_pub_key, &dsa_priv_key);
++ if ((r = sshbuf_put_bignum2(b, dsa_p)) != 0 ||
++ (r = sshbuf_put_bignum2(b, dsa_q)) != 0 ||
++ (r = sshbuf_put_bignum2(b, dsa_g)) != 0 ||
++ (r = sshbuf_put_bignum2(b, dsa_pub_key)) != 0 ||
++ (r = sshbuf_put_bignum2(b, dsa_priv_key)) != 0)
+ goto out;
+ break;
+ case KEY_DSA_CERT:
+@@ -2797,8 +2772,9 @@ sshkey_private_serialize_opt(const struct sshkey *key, struct sshbuf *b,
+ r = SSH_ERR_INVALID_ARGUMENT;
+ goto out;
+ }
++ DSA_get0_key(key->dsa, NULL, &dsa_priv_key);
+ if ((r = sshbuf_put_stringb(b, key->cert->certblob)) != 0 ||
+- (r = sshbuf_put_bignum2(b, key->dsa->priv_key)) != 0)
++ (r = sshbuf_put_bignum2(b, dsa_priv_key)) != 0)
+ goto out;
+ break;
+ # ifdef OPENSSL_HAS_ECC
+@@ -2899,6 +2875,10 @@ sshkey_private_deserialize(struct sshbuf *buf, struct sshkey **kp)
+ u_char *xmss_pk = NULL, *xmss_sk = NULL;
+ #ifdef WITH_OPENSSL
+ BIGNUM *exponent = NULL;
++ BIGNUM *rsa_n = NULL, *rsa_e = NULL, *rsa_d = NULL;
++ BIGNUM *rsa_iqmp = NULL, *rsa_p = NULL, *rsa_q = NULL;
++ BIGNUM *dsa_p = NULL, *dsa_q = NULL, *dsa_g = NULL;
++ BIGNUM *dsa_pub_key = NULL, *dsa_priv_key = NULL;
+ #endif /* WITH_OPENSSL */
+
+ if (kp != NULL)
+@@ -2913,18 +2893,44 @@ sshkey_private_deserialize(struct sshbuf *buf, struct sshkey **kp)
+ r = SSH_ERR_ALLOC_FAIL;
+ goto out;
+ }
+- if ((r = sshbuf_get_bignum2(buf, k->dsa->p)) != 0 ||
+- (r = sshbuf_get_bignum2(buf, k->dsa->q)) != 0 ||
+- (r = sshbuf_get_bignum2(buf, k->dsa->g)) != 0 ||
+- (r = sshbuf_get_bignum2(buf, k->dsa->pub_key)) != 0 ||
+- (r = sshbuf_get_bignum2(buf, k->dsa->priv_key)) != 0)
++ if ((dsa_p = BN_new()) == NULL ||
++ (dsa_q = BN_new()) == NULL ||
++ (dsa_g = BN_new()) == NULL ||
++ (dsa_pub_key = BN_new()) == NULL ||
++ (dsa_priv_key = BN_new()) == NULL) {
++ r = SSH_ERR_ALLOC_FAIL;
++ goto out;
++ }
++ if ((r = sshbuf_get_bignum2(buf, dsa_p)) != 0 ||
++ (r = sshbuf_get_bignum2(buf, dsa_q)) != 0 ||
++ (r = sshbuf_get_bignum2(buf, dsa_g)) != 0 ||
++ (r = sshbuf_get_bignum2(buf, dsa_pub_key)) != 0 ||
++ (r = sshbuf_get_bignum2(buf, dsa_priv_key)) != 0)
+ goto out;
++ if (!DSA_set0_pqg(k->dsa, dsa_p, dsa_q, dsa_g)) {
++ r = SSH_ERR_LIBCRYPTO_ERROR;
++ goto out;
++ }
++ dsa_p = dsa_q = dsa_g = NULL; /* transferred */
++ if (!DSA_set0_key(k->dsa, dsa_pub_key, dsa_priv_key)) {
++ r = SSH_ERR_LIBCRYPTO_ERROR;
++ goto out;
++ }
++ dsa_pub_key = dsa_priv_key = NULL; /* transferred */
+ break;
+ case KEY_DSA_CERT:
++ if ((dsa_priv_key = BN_new()) == NULL) {
++ r = SSH_ERR_ALLOC_FAIL;
++ goto out;
++ }
+ if ((r = sshkey_froms(buf, &k)) != 0 ||
+- (r = sshkey_add_private(k)) != 0 ||
+- (r = sshbuf_get_bignum2(buf, k->dsa->priv_key)) != 0)
++ (r = sshbuf_get_bignum2(buf, dsa_priv_key)) != 0)
++ goto out;
++ if (!DSA_set0_key(k->dsa, NULL, dsa_priv_key)) {
++ r = SSH_ERR_LIBCRYPTO_ERROR;
+ goto out;
++ }
++ dsa_priv_key = NULL; /* transferred */
+ break;
+ # ifdef OPENSSL_HAS_ECC
+ case KEY_ECDSA:
+@@ -2965,7 +2971,6 @@ sshkey_private_deserialize(struct sshbuf *buf, struct sshkey **kp)
+ goto out;
+ }
+ if ((r = sshkey_froms(buf, &k)) != 0 ||
+- (r = sshkey_add_private(k)) != 0 ||
+ (r = sshbuf_get_bignum2(buf, exponent)) != 0)
+ goto out;
+ if (EC_KEY_set_private_key(k->ecdsa, exponent) != 1) {
+@@ -2983,32 +2988,65 @@ sshkey_private_deserialize(struct sshbuf *buf, struct sshkey **kp)
+ r = SSH_ERR_ALLOC_FAIL;
+ goto out;
+ }
+- if ((r = sshbuf_get_bignum2(buf, k->rsa->n)) != 0 ||
+- (r = sshbuf_get_bignum2(buf, k->rsa->e)) != 0 ||
+- (r = sshbuf_get_bignum2(buf, k->rsa->d)) != 0 ||
+- (r = sshbuf_get_bignum2(buf, k->rsa->iqmp)) != 0 ||
+- (r = sshbuf_get_bignum2(buf, k->rsa->p)) != 0 ||
+- (r = sshbuf_get_bignum2(buf, k->rsa->q)) != 0 ||
+- (r = ssh_rsa_generate_additional_parameters(k)) != 0)
++ if ((rsa_n = BN_new()) == NULL ||
++ (rsa_e = BN_new()) == NULL ||
++ (rsa_d = BN_new()) == NULL ||
++ (rsa_iqmp = BN_new()) == NULL ||
++ (rsa_p = BN_new()) == NULL ||
++ (rsa_q = BN_new()) == NULL) {
++ r = SSH_ERR_ALLOC_FAIL;
+ goto out;
+- if (BN_num_bits(k->rsa->n) < SSH_RSA_MINIMUM_MODULUS_SIZE) {
+- r = SSH_ERR_KEY_LENGTH;
++ }
++ if ((r = sshbuf_get_bignum2(buf, rsa_n)) != 0 ||
++ (r = sshbuf_get_bignum2(buf, rsa_e)) != 0 ||
++ (r = sshbuf_get_bignum2(buf, rsa_d)) != 0 ||
++ (r = sshbuf_get_bignum2(buf, rsa_iqmp)) != 0 ||
++ (r = sshbuf_get_bignum2(buf, rsa_p)) != 0 ||
++ (r = sshbuf_get_bignum2(buf, rsa_q)) != 0)
++ goto out;
++ if (!RSA_set0_key(k->rsa, rsa_n, rsa_e, rsa_d)) {
++ r = SSH_ERR_LIBCRYPTO_ERROR;
+ goto out;
+ }
++ rsa_n = rsa_e = rsa_d = NULL; /* transferred */
++ if (!RSA_set0_factors(k->rsa, rsa_p, rsa_q)) {
++ r = SSH_ERR_LIBCRYPTO_ERROR;
++ goto out;
++ }
++ rsa_p = rsa_q = NULL; /* transferred */
++ if ((r = check_rsa_length(k->rsa)) != 0)
++ goto out;
++ if ((r = ssh_rsa_complete_crt_parameters(k, rsa_iqmp)) != 0)
++ goto out;
+ break;
+ case KEY_RSA_CERT:
++ if ((rsa_d = BN_new()) == NULL ||
++ (rsa_iqmp = BN_new()) == NULL ||
++ (rsa_p = BN_new()) == NULL ||
++ (rsa_q = BN_new()) == NULL) {
++ r = SSH_ERR_ALLOC_FAIL;
++ goto out;
++ }
+ if ((r = sshkey_froms(buf, &k)) != 0 ||
+- (r = sshkey_add_private(k)) != 0 ||
+- (r = sshbuf_get_bignum2(buf, k->rsa->d)) != 0 ||
+- (r = sshbuf_get_bignum2(buf, k->rsa->iqmp)) != 0 ||
+- (r = sshbuf_get_bignum2(buf, k->rsa->p)) != 0 ||
+- (r = sshbuf_get_bignum2(buf, k->rsa->q)) != 0 ||
+- (r = ssh_rsa_generate_additional_parameters(k)) != 0)
++ (r = sshbuf_get_bignum2(buf, rsa_d)) != 0 ||
++ (r = sshbuf_get_bignum2(buf, rsa_iqmp)) != 0 ||
++ (r = sshbuf_get_bignum2(buf, rsa_p)) != 0 ||
++ (r = sshbuf_get_bignum2(buf, rsa_q)) != 0)
++ goto out;
++ if (!RSA_set0_key(k->rsa, NULL, NULL, rsa_d)) {
++ r = SSH_ERR_LIBCRYPTO_ERROR;
+ goto out;
+- if (BN_num_bits(k->rsa->n) < SSH_RSA_MINIMUM_MODULUS_SIZE) {
+- r = SSH_ERR_KEY_LENGTH;
++ }
++ rsa_d = NULL; /* transferred */
++ if (!RSA_set0_factors(k->rsa, rsa_p, rsa_q)) {
++ r = SSH_ERR_LIBCRYPTO_ERROR;
+ goto out;
+ }
++ rsa_p = rsa_q = NULL; /* transferred */
++ if ((r = check_rsa_length(k->rsa)) != 0)
++ goto out;
++ if ((r = ssh_rsa_complete_crt_parameters(k, rsa_iqmp)) != 0)
++ goto out;
+ break;
+ #endif /* WITH_OPENSSL */
+ case KEY_ED25519:
+@@ -3029,7 +3067,6 @@ sshkey_private_deserialize(struct sshbuf *buf, struct sshkey **kp)
+ break;
+ case KEY_ED25519_CERT:
+ if ((r = sshkey_froms(buf, &k)) != 0 ||
+- (r = sshkey_add_private(k)) != 0 ||
+ (r = sshbuf_get_string(buf, &ed25519_pk, &pklen)) != 0 ||
+ (r = sshbuf_get_string(buf, &ed25519_sk, &sklen)) != 0)
+ goto out;
+@@ -3066,7 +3103,6 @@ sshkey_private_deserialize(struct sshbuf *buf, struct sshkey **kp)
+ break;
+ case KEY_XMSS_CERT:
+ if ((r = sshkey_froms(buf, &k)) != 0 ||
+- (r = sshkey_add_private(k)) != 0 ||
+ (r = sshbuf_get_cstring(buf, &xmss_name, NULL)) != 0 ||
+ (r = sshbuf_get_string(buf, &xmss_pk, &pklen)) != 0 ||
+ (r = sshbuf_get_string(buf, &xmss_sk, &sklen)) != 0)
+@@ -3115,6 +3151,17 @@ sshkey_private_deserialize(struct sshbuf *buf, struct sshkey **kp)
+ free(curve);
+ #ifdef WITH_OPENSSL
+ BN_clear_free(exponent);
++ BN_clear_free(dsa_p);
++ BN_clear_free(dsa_q);
++ BN_clear_free(dsa_g);
++ BN_clear_free(dsa_pub_key);
++ BN_clear_free(dsa_priv_key);
++ BN_clear_free(rsa_n);
++ BN_clear_free(rsa_e);
++ BN_clear_free(rsa_d);
++ BN_clear_free(rsa_p);
++ BN_clear_free(rsa_q);
++ BN_clear_free(rsa_iqmp);
+ #endif /* WITH_OPENSSL */
+ sshkey_free(k);
+ freezero(ed25519_pk, pklen);
+@@ -3769,7 +3816,9 @@ translate_libcrypto_error(unsigned long pem_err)
+ switch (pem_reason) {
+ case EVP_R_BAD_DECRYPT:
+ return SSH_ERR_KEY_WRONG_PASSPHRASE;
++#ifdef EVP_R_BN_DECODE_ERROR
+ case EVP_R_BN_DECODE_ERROR:
++#endif
+ case EVP_R_DECODE_ERROR:
+ #ifdef EVP_R_PRIVATE_KEY_DECODE_ERROR
+ case EVP_R_PRIVATE_KEY_DECODE_ERROR:
+@@ -3834,7 +3883,7 @@ sshkey_parse_private_pem_fileblob(struct sshbuf *blob, int type,
+ r = convert_libcrypto_error();
+ goto out;
+ }
+- if (pk->type == EVP_PKEY_RSA &&
++ if (EVP_PKEY_base_id(pk) == EVP_PKEY_RSA &&
+ (type == KEY_UNSPEC || type == KEY_RSA)) {
+ if ((prv = sshkey_new(KEY_UNSPEC)) == NULL) {
+ r = SSH_ERR_ALLOC_FAIL;
+@@ -3849,11 +3898,9 @@ sshkey_parse_private_pem_fileblob(struct sshbuf *blob, int type,
+ r = SSH_ERR_LIBCRYPTO_ERROR;
+ goto out;
+ }
+- if (BN_num_bits(prv->rsa->n) < SSH_RSA_MINIMUM_MODULUS_SIZE) {
+- r = SSH_ERR_KEY_LENGTH;
++ if ((r = check_rsa_length(prv->rsa)) != 0)
+ goto out;
+- }
+- } else if (pk->type == EVP_PKEY_DSA &&
++ } else if (EVP_PKEY_base_id(pk) == EVP_PKEY_DSA &&
+ (type == KEY_UNSPEC || type == KEY_DSA)) {
+ if ((prv = sshkey_new(KEY_UNSPEC)) == NULL) {
+ r = SSH_ERR_ALLOC_FAIL;
+@@ -3865,7 +3912,7 @@ sshkey_parse_private_pem_fileblob(struct sshbuf *blob, int type,
+ DSA_print_fp(stderr, prv->dsa, 8);
+ #endif
+ #ifdef OPENSSL_HAS_ECC
+- } else if (pk->type == EVP_PKEY_EC &&
++ } else if (EVP_PKEY_base_id(pk) == EVP_PKEY_EC &&
+ (type == KEY_UNSPEC || type == KEY_ECDSA)) {
+ if ((prv = sshkey_new(KEY_UNSPEC)) == NULL) {
+ r = SSH_ERR_ALLOC_FAIL;
+diff --git a/sshkey.h b/sshkey.h
+index 9060b2ec..922db5bb 100644
+--- a/sshkey.h
++++ b/sshkey.h
+@@ -39,6 +39,7 @@
+ # define EC_POINT void
+ # endif /* OPENSSL_HAS_ECC */
+ #else /* WITH_OPENSSL */
++# define BIGNUM void
+ # define RSA void
+ # define DSA void
+ # define EC_KEY void
+@@ -126,10 +127,8 @@ struct sshkey {
+ #define ED25519_PK_SZ crypto_sign_ed25519_PUBLICKEYBYTES
+
+ struct sshkey *sshkey_new(int);
+-int sshkey_add_private(struct sshkey *);
+-struct sshkey *sshkey_new_private(int);
++struct sshkey *sshkey_new_private(int); /* XXX garbage collect */
+ void sshkey_free(struct sshkey *);
+-int sshkey_demote(const struct sshkey *, struct sshkey **);
+ int sshkey_equal_public(const struct sshkey *,
+ const struct sshkey *);
+ int sshkey_equal(const struct sshkey *, const struct sshkey *);
+@@ -218,7 +217,7 @@ int sshkey_parse_private_fileblob_type(struct sshbuf *blob, int type,
+ const char *passphrase, struct sshkey **keyp, char **commentp);
+
+ /* XXX should be internal, but used by ssh-keygen */
+-int ssh_rsa_generate_additional_parameters(struct sshkey *);
++int ssh_rsa_complete_crt_parameters(struct sshkey *, const BIGNUM *);
+
+ /* stateful keys (e.g. XMSS) */
+ #ifdef NO_ATTRIBUTE_ON_PROTOTYPE_ARGS
+--
+2.16.4
+
--- /dev/null
+From a294365f8524e6cc3bb82bdcb459e95d65226fce Mon Sep 17 00:00:00 2001
+From: Damien Miller <djm@mindrot.org>
+Date: Thu, 13 Sep 2018 12:13:50 +1000
+Subject: [PATCH 2/5] adapt -portable to OpenSSL 1.1x API
+
+Polyfill missing API with replacement functions extracted from LibreSSL
+---
+ auth-pam.c | 4 +
+ cipher.c | 38 ---
+ configure.ac | 112 +++++-
+ dh.c | 2 +
+ kexdh.c | 2 +
+ kexdhc.c | 2 +
+ kexdhs.c | 2 +
+ kexgex.c | 2 +
+ kexgexc.c | 2 +
+ kexgexs.c | 2 +
+ monitor.c | 4 +-
+ openbsd-compat/Makefile.in | 1 +
+ openbsd-compat/libressl-api-compat.c | 636 +++++++++++++++++++++++++++++++++++
+ openbsd-compat/openssl-compat.h | 136 ++++++++
+ ssh-dss.c | 2 +
+ ssh-ecdsa.c | 2 +
+ ssh-pkcs11-client.c | 2 +
+ ssh-pkcs11.c | 1 +
+ ssh-rsa.c | 2 +
+ sshkey.c | 3 +-
+ 20 files changed, 916 insertions(+), 41 deletions(-)
+ create mode 100644 openbsd-compat/libressl-api-compat.c
+
+diff --git a/auth-pam.c b/auth-pam.c
+index 8c013836..1dec53e9 100644
+--- a/auth-pam.c
++++ b/auth-pam.c
+@@ -128,6 +128,10 @@ extern u_int utmp_len;
+ typedef pthread_t sp_pthread_t;
+ #else
+ typedef pid_t sp_pthread_t;
++#define pthread_exit fake_pthread_exit
++#define pthread_create fake_pthread_create
++#define pthread_cancel fake_pthread_cancel
++#define pthread_join fake_pthread_join
+ #endif
+
+ struct pam_ctxt {
+diff --git a/cipher.c b/cipher.c
+index df43826e..12c59888 100644
+--- a/cipher.c
++++ b/cipher.c
+@@ -525,41 +525,3 @@ cipher_set_keyiv(struct sshcipher_ctx *cc, const u_char *iv, size_t len)
+ #endif
+ return 0;
+ }
+-
+-#ifdef WITH_OPENSSL
+-#define EVP_X_STATE(evp) (evp)->cipher_data
+-#define EVP_X_STATE_LEN(evp) (evp)->cipher->ctx_size
+-#endif
+-
+-int
+-cipher_get_keycontext(const struct sshcipher_ctx *cc, u_char *dat)
+-{
+-#if defined(WITH_OPENSSL) && !defined(OPENSSL_NO_RC4)
+- const struct sshcipher *c = cc->cipher;
+- int plen = 0;
+-
+- if (c->evptype == EVP_rc4) {
+- plen = EVP_X_STATE_LEN(cc->evp);
+- if (dat == NULL)
+- return (plen);
+- memcpy(dat, EVP_X_STATE(cc->evp), plen);
+- }
+- return (plen);
+-#else
+- return 0;
+-#endif
+-}
+-
+-void
+-cipher_set_keycontext(struct sshcipher_ctx *cc, const u_char *dat)
+-{
+-#if defined(WITH_OPENSSL) && !defined(OPENSSL_NO_RC4)
+- const struct sshcipher *c = cc->cipher;
+- int plen;
+-
+- if (c->evptype == EVP_rc4) {
+- plen = EVP_X_STATE_LEN(cc->evp);
+- memcpy(EVP_X_STATE(cc->evp), dat, plen);
+- }
+-#endif
+-}
+diff --git a/configure.ac b/configure.ac
+index 83e53075..c0e120fe 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -2602,9 +2602,10 @@ if test "x$openssl" = "xyes" ; then
+ AC_MSG_ERROR([OpenSSL >= 1.0.1 required (have "$ssl_library_ver")])
+ ;;
+ 100*) ;; # 1.0.x
++ 101*) ;; # 1.1.x
+ 200*) ;; # LibreSSL
+ *)
+- AC_MSG_ERROR([OpenSSL >= 1.1.0 is not yet supported (have "$ssl_library_ver")])
++ AC_MSG_ERROR([OpenSSL > 1.1.x is not yet supported (have "$ssl_library_ver")])
+ ;;
+ esac
+ AC_MSG_RESULT([$ssl_library_ver])
+@@ -2777,6 +2778,115 @@ if test "x$openssl" = "xyes" ; then
+ [AC_DEFINE([HAVE_EVP_CIPHER_CTX_CTRL], [1],
+ [Define if libcrypto has EVP_CIPHER_CTX_ctrl])])
+
++ # LibreSSL/OpenSSL 1.1x API
++ AC_SEARCH_LIBS([DH_get0_key], [crypto],
++ [AC_DEFINE([HAVE_DH_GET0_KEY], [1],
++ [Define if libcrypto has DH_get0_key])])
++ AC_SEARCH_LIBS([DH_get0_pqg], [crypto],
++ [AC_DEFINE([HAVE_DH_GET0_PQG], [1],
++ [Define if libcrypto has DH_get0_pqg])])
++ AC_SEARCH_LIBS([DH_set0_key], [crypto],
++ [AC_DEFINE([HAVE_DH_SET0_KEY], [1],
++ [Define if libcrypto has DH_set0_key])])
++ AC_SEARCH_LIBS([DH_set_length], [crypto],
++ [AC_DEFINE([HAVE_DH_SET_LENGTH], [1],
++ [Define if libcrypto has DH_set_length])])
++ AC_SEARCH_LIBS([DH_set0_pqg], [crypto],
++ [AC_DEFINE([HAVE_DH_SET0_PQG], [1],
++ [Define if libcrypto has DH_set0_pqg])])
++
++ AC_SEARCH_LIBS([DSA_get0_key], [crypto],
++ [AC_DEFINE([HAVE_DSA_GET0_KEY], [1],
++ [Define if libcrypto has DSA_get0_key])])
++ AC_SEARCH_LIBS([DSA_get0_pqg], [crypto],
++ [AC_DEFINE([HAVE_DSA_GET0_PQG], [1],
++ [Define if libcrypto has DSA_get0_pqg])])
++ AC_SEARCH_LIBS([DSA_set0_key], [crypto],
++ [AC_DEFINE([HAVE_DSA_SET0_KEY], [1],
++ [Define if libcrypto has DSA_set0_key])])
++ AC_SEARCH_LIBS([DSA_set0_pqg], [crypto],
++ [AC_DEFINE([HAVE_DSA_SET0_PQG], [1],
++ [Define if libcrypto has DSA_set0_pqg])])
++
++ AC_SEARCH_LIBS([DSA_SIG_get0], [crypto],
++ [AC_DEFINE([HAVE_DSA_SIG_GET0], [1],
++ [Define if libcrypto has DSA_SIG_get0])])
++ AC_SEARCH_LIBS([DSA_SIG_set0], [crypto],
++ [AC_DEFINE([HAVE_DSA_SIG_SET0], [1],
++ [Define if libcrypto has DSA_SIG_set0])])
++
++ AC_SEARCH_LIBS([ECDSA_SIG_get0], [crypto],
++ [AC_DEFINE([HAVE_ECDSA_SIG_GET0], [1],
++ [Define if libcrypto has ECDSA_SIG_get0])])
++ AC_SEARCH_LIBS([ECDSA_SIG_set0], [crypto],
++ [AC_DEFINE([HAVE_ECDSA_SIG_SET0], [1],
++ [Define if libcrypto has ECDSA_SIG_set0])])
++
++ AC_SEARCH_LIBS([EVP_CIPHER_CTX_iv], [crypto],
++ [AC_DEFINE([HAVE_EVP_CIPHER_CTX_IV], [1],
++ [Define if libcrypto has EVP_CIPHER_CTX_iv])])
++ AC_SEARCH_LIBS([EVP_CIPHER_CTX_iv_noconst], [crypto],
++ [AC_DEFINE([HAVE_EVP_CIPHER_CTX_IV_NOCONST], [1],
++ [Define if libcrypto has EVP_CIPHER_CTX_iv_noconst])])
++ AC_SEARCH_LIBS([EVP_CIPHER_CTX_get_iv], [crypto],
++ [AC_DEFINE([HAVE_EVP_CIPHER_CTX_GET_IV], [1],
++ [Define if libcrypto has EVP_CIPHER_CTX_get_iv])])
++ AC_SEARCH_LIBS([EVP_CIPHER_CTX_set_iv], [crypto],
++ [AC_DEFINE([HAVE_EVP_CIPHER_CTX_GET_IV], [1],
++ [Define if libcrypto has EVP_CIPHER_CTX_set_iv])])
++
++ AC_SEARCH_LIBS([RSA_get0_crt_params], [crypto],
++ [AC_DEFINE([HAVE_RSA_GET0_CRT_PARAMS], [1],
++ [Define if libcrypto has RSA_get0_crt_params])])
++ AC_SEARCH_LIBS([RSA_get0_factors], [crypto],
++ [AC_DEFINE([HAVE_RSA_GET0_FACTORS], [1],
++ [Define if libcrypto has RSA_get0_factors])])
++ AC_SEARCH_LIBS([RSA_get0_key], [crypto],
++ [AC_DEFINE([HAVE_RSA_GET0_KEY], [1],
++ [Define if libcrypto has RSA_get0_key])])
++ AC_SEARCH_LIBS([RSA_set0_crt_params], [crypto],
++ [AC_DEFINE([HAVE_RSA_SET0_CRT_PARAMS], [1],
++ [Define if libcrypto has RSA_get0_srt_params])])
++ AC_SEARCH_LIBS([RSA_set0_factors], [crypto],
++ [AC_DEFINE([HAVE_RSA_SET0_FACTORS], [1],
++ [Define if libcrypto has RSA_set0_factors])])
++ AC_SEARCH_LIBS([RSA_set0_key], [crypto],
++ [AC_DEFINE([HAVE_RSA_SET0_KEY], [1],
++ [Define if libcrypto has RSA_set0_key])])
++
++ AC_SEARCH_LIBS([RSA_meth_free], [crypto],
++ [AC_DEFINE([HAVE_RSA_METH_FREE], [1],
++ [Define if libcrypto has RSA_meth_free])])
++ AC_SEARCH_LIBS([RSA_meth_dup], [crypto],
++ [AC_DEFINE([HAVE_RSA_METH_DUP], [1],
++ [Define if libcrypto has RSA_meth_dup])])
++ AC_SEARCH_LIBS([RSA_meth_set1_name], [crypto],
++ [AC_DEFINE([HAVE_RSA_METH_SET1_NAME], [1],
++ [Define if libcrypto has RSA_meth_set1_name])])
++ AC_SEARCH_LIBS([RSA_meth_get_finish], [crypto],
++ [AC_DEFINE([HAVE_RSA_METH_GET_FINISH], [1],
++ [Define if libcrypto has RSA_meth_get_finish])])
++ AC_SEARCH_LIBS([RSA_meth_set_priv_enc], [crypto],
++ [AC_DEFINE([HAVE_RSA_METH_SET_PRIV_ENC], [1],
++ [Define if libcrypto has RSA_meth_set_priv_enc])])
++ AC_SEARCH_LIBS([RSA_meth_set_priv_dec], [crypto],
++ [AC_DEFINE([HAVE_RSA_METH_SET_PRIV_DEC], [1],
++ [Define if libcrypto has RSA_meth_set_priv_dec])])
++ AC_SEARCH_LIBS([RSA_meth_set_finish], [crypto],
++ [AC_DEFINE([HAVE_RSA_METH_SET_FINISH], [1],
++ [Define if libcrypto has RSA_meth_set_finish])])
++
++ AC_SEARCH_LIBS([EVP_PKEY_get0_RSA], [crypto],
++ [AC_DEFINE([HAVE_EVP_PKEY_GET0_RSA], [1],
++ [Define if libcrypto has EVP_PKEY_get0_RSA])])
++
++ AC_SEARCH_LIBS([EVP_MD_CTX_new], [crypto],
++ [AC_DEFINE([HAVE_EVP_MD_CTX_NEW], [1],
++ [Define if libcrypto has EVP_MD_CTX_new])])
++ AC_SEARCH_LIBS([EVP_MD_CTX_free], [crypto],
++ [AC_DEFINE([HAVE_EVP_MD_CTX_FREE], [1],
++ [Define if libcrypto has EVP_MD_CTX_free])])
++
+ AC_MSG_CHECKING([if EVP_DigestUpdate returns an int])
+ AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM([[
+diff --git a/dh.c b/dh.c
+index d0d4527b..f3ed3882 100644
+--- a/dh.c
++++ b/dh.c
+@@ -43,6 +43,8 @@
+ #include "misc.h"
+ #include "ssherr.h"
+
++#include "openbsd-compat/openssl-compat.h"
++
+ static int
+ parse_prime(int linenum, char *line, struct dhgroup *dhg)
+ {
+diff --git a/kexdh.c b/kexdh.c
+index 0bf0dc13..e6925b18 100644
+--- a/kexdh.c
++++ b/kexdh.c
+@@ -33,6 +33,8 @@
+
+ #include <openssl/evp.h>
+
++#include "openbsd-compat/openssl-compat.h"
++
+ #include "ssh2.h"
+ #include "sshkey.h"
+ #include "cipher.h"
+diff --git a/kexdhc.c b/kexdhc.c
+index a8b74247..8b56377a 100644
+--- a/kexdhc.c
++++ b/kexdhc.c
+@@ -36,6 +36,8 @@
+ #include <string.h>
+ #include <signal.h>
+
++#include "openbsd-compat/openssl-compat.h"
++
+ #include "sshkey.h"
+ #include "cipher.h"
+ #include "digest.h"
+diff --git a/kexdhs.c b/kexdhs.c
+index 8367c6c3..337aab5b 100644
+--- a/kexdhs.c
++++ b/kexdhs.c
+@@ -35,6 +35,8 @@
+
+ #include <openssl/dh.h>
+
++#include "openbsd-compat/openssl-compat.h"
++
+ #include "sshkey.h"
+ #include "cipher.h"
+ #include "digest.h"
+diff --git a/kexgex.c b/kexgex.c
+index 8b0d8333..3ca4bd37 100644
+--- a/kexgex.c
++++ b/kexgex.c
+@@ -33,6 +33,8 @@
+ #include <openssl/evp.h>
+ #include <signal.h>
+
++#include "openbsd-compat/openssl-compat.h"
++
+ #include "sshkey.h"
+ #include "cipher.h"
+ #include "kex.h"
+diff --git a/kexgexc.c b/kexgexc.c
+index 955bc837..0d07f73c 100644
+--- a/kexgexc.c
++++ b/kexgexc.c
+@@ -37,6 +37,8 @@
+ #include <string.h>
+ #include <signal.h>
+
++#include "openbsd-compat/openssl-compat.h"
++
+ #include "sshkey.h"
+ #include "cipher.h"
+ #include "digest.h"
+diff --git a/kexgexs.c b/kexgexs.c
+index 2a4aa7e8..ce934f88 100644
+--- a/kexgexs.c
++++ b/kexgexs.c
+@@ -36,6 +36,8 @@
+
+ #include <openssl/dh.h>
+
++#include "openbsd-compat/openssl-compat.h"
++
+ #include "sshkey.h"
+ #include "cipher.h"
+ #include "digest.h"
+diff --git a/monitor.c b/monitor.c
+index b30813b4..531b2993 100644
+--- a/monitor.c
++++ b/monitor.c
+@@ -29,7 +29,6 @@
+
+ #include <sys/types.h>
+ #include <sys/socket.h>
+-#include "openbsd-compat/sys-tree.h"
+ #include <sys/wait.h>
+
+ #include <errno.h>
+@@ -60,7 +59,10 @@
+ #include <openssl/dh.h>
+ #endif
+
++#include "openbsd-compat/sys-tree.h"
+ #include "openbsd-compat/sys-queue.h"
++#include "openbsd-compat/openssl-compat.h"
++
+ #include "atomicio.h"
+ #include "xmalloc.h"
+ #include "ssh.h"
+diff --git a/openbsd-compat/Makefile.in b/openbsd-compat/Makefile.in
+index 2fd9b952..c1e14cbd 100644
+--- a/openbsd-compat/Makefile.in
++++ b/openbsd-compat/Makefile.in
+@@ -85,6 +85,7 @@ COMPAT= arc4random.o \
+ getrrsetbyname-ldns.o \
+ kludge-fd_set.o \
+ openssl-compat.o \
++ libressl-api-compat.o \
+ xcrypt.o
+
+ PORTS= port-aix.o \
+diff --git a/openbsd-compat/libressl-api-compat.c b/openbsd-compat/libressl-api-compat.c
+new file mode 100644
+index 00000000..de3e64a6
+--- /dev/null
++++ b/openbsd-compat/libressl-api-compat.c
+@@ -0,0 +1,636 @@
++/* $OpenBSD: dsa_lib.c,v 1.29 2018/04/14 07:09:21 tb Exp $ */
++/* $OpenBSD: rsa_lib.c,v 1.37 2018/04/14 07:09:21 tb Exp $ */
++/* $OpenBSD: evp_lib.c,v 1.17 2018/09/12 06:35:38 djm Exp $ */
++/* $OpenBSD: dh_lib.c,v 1.32 2018/05/02 15:48:38 tb Exp $ */
++/* $OpenBSD: p_lib.c,v 1.24 2018/05/30 15:40:50 tb Exp $ */
++/* $OpenBSD: digest.c,v 1.30 2018/04/14 07:09:21 tb Exp $ */
++/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
++ * All rights reserved.
++ *
++ * This package is an SSL implementation written
++ * by Eric Young (eay@cryptsoft.com).
++ * The implementation was written so as to conform with Netscapes SSL.
++ *
++ * This library is free for commercial and non-commercial use as long as
++ * the following conditions are aheared to. The following conditions
++ * apply to all code found in this distribution, be it the RC4, RSA,
++ * lhash, DES, etc., code; not just the SSL code. The SSL documentation
++ * included with this distribution is covered by the same copyright terms
++ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
++ *
++ * Copyright remains Eric Young's, and as such any Copyright notices in
++ * the code are not to be removed.
++ * If this package is used in a product, Eric Young should be given attribution
++ * as the author of the parts of the library used.
++ * This can be in the form of a textual message at program startup or
++ * in documentation (online or textual) provided with the package.
++ *
++ * Redistribution and use in source and binary forms, with or without
++ * modification, are permitted provided that the following conditions
++ * are met:
++ * 1. Redistributions of source code must retain the copyright
++ * notice, this list of conditions and the following disclaimer.
++ * 2. Redistributions in binary form must reproduce the above copyright
++ * notice, this list of conditions and the following disclaimer in the
++ * documentation and/or other materials provided with the distribution.
++ * 3. All advertising materials mentioning features or use of this software
++ * must display the following acknowledgement:
++ * "This product includes cryptographic software written by
++ * Eric Young (eay@cryptsoft.com)"
++ * The word 'cryptographic' can be left out if the rouines from the library
++ * being used are not cryptographic related :-).
++ * 4. If you include any Windows specific code (or a derivative thereof) from
++ * the apps directory (application code) you must include an acknowledgement:
++ * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
++ *
++ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
++ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
++ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
++ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
++ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
++ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
++ * SUCH DAMAGE.
++ *
++ * The licence and distribution terms for any publically available version or
++ * derivative of this code cannot be changed. i.e. this code cannot simply be
++ * copied and put under another distribution licence
++ * [including the GNU Public Licence.]
++ */
++
++/* $OpenBSD: dsa_asn1.c,v 1.22 2018/06/14 17:03:19 jsing Exp $ */
++/* $OpenBSD: ecs_asn1.c,v 1.9 2018/03/17 15:24:44 tb Exp $ */
++/* $OpenBSD: digest.c,v 1.30 2018/04/14 07:09:21 tb Exp $ */
++/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
++ * project 2000.
++ */
++/* ====================================================================
++ * Copyright (c) 2000-2005 The OpenSSL Project. All rights reserved.
++ *
++ * Redistribution and use in source and binary forms, with or without
++ * modification, are permitted provided that the following conditions
++ * are met:
++ *
++ * 1. Redistributions of source code must retain the above copyright
++ * notice, this list of conditions and the following disclaimer.
++ *
++ * 2. Redistributions in binary form must reproduce the above copyright
++ * notice, this list of conditions and the following disclaimer in
++ * the documentation and/or other materials provided with the
++ * distribution.
++ *
++ * 3. All advertising materials mentioning features or use of this
++ * software must display the following acknowledgment:
++ * "This product includes software developed by the OpenSSL Project
++ * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
++ *
++ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
++ * endorse or promote products derived from this software without
++ * prior written permission. For written permission, please contact
++ * licensing@OpenSSL.org.
++ *
++ * 5. Products derived from this software may not be called "OpenSSL"
++ * nor may "OpenSSL" appear in their names without prior written
++ * permission of the OpenSSL Project.
++ *
++ * 6. Redistributions of any form whatsoever must retain the following
++ * acknowledgment:
++ * "This product includes software developed by the OpenSSL Project
++ * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
++ *
++ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
++ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
++ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
++ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
++ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
++ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
++ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
++ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
++ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
++ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
++ * OF THE POSSIBILITY OF SUCH DAMAGE.
++ * ====================================================================
++ *
++ * This product includes cryptographic software written by Eric Young
++ * (eay@cryptsoft.com). This product includes software written by Tim
++ * Hudson (tjh@cryptsoft.com).
++ *
++ */
++
++/* $OpenBSD: rsa_meth.c,v 1.2 2018/09/12 06:35:38 djm Exp $ */
++/*
++ * Copyright (c) 2018 Theo Buehler <tb@openbsd.org>
++ *
++ * Permission to use, copy, modify, and distribute this software for any
++ * purpose with or without fee is hereby granted, provided that the above
++ * copyright notice and this permission notice appear in all copies.
++ *
++ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
++ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
++ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
++ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
++ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
++ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
++ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
++ */
++
++#include "includes.h"
++
++#ifdef WITH_OPENSSL
++
++#include <sys/types.h>
++
++#include <stdlib.h>
++#include <string.h>
++
++#include <openssl/err.h>
++#include <openssl/bn.h>
++#include <openssl/dsa.h>
++#include <openssl/rsa.h>
++#include <openssl/evp.h>
++#include <openssl/ecdsa.h>
++#include <openssl/dh.h>
++
++#ifndef HAVE_DSA_GET0_PQG
++void
++DSA_get0_pqg(const DSA *d, const BIGNUM **p, const BIGNUM **q, const BIGNUM **g)
++{
++ if (p != NULL)
++ *p = d->p;
++ if (q != NULL)
++ *q = d->q;
++ if (g != NULL)
++ *g = d->g;
++}
++#endif /* HAVE_DSA_GET0_PQG */
++
++#ifndef HAVE_DSA_SET0_PQG
++int
++DSA_set0_pqg(DSA *d, BIGNUM *p, BIGNUM *q, BIGNUM *g)
++{
++ if ((d->p == NULL && p == NULL) || (d->q == NULL && q == NULL) ||
++ (d->g == NULL && g == NULL))
++ return 0;
++
++ if (p != NULL) {
++ BN_free(d->p);
++ d->p = p;
++ }
++ if (q != NULL) {
++ BN_free(d->q);
++ d->q = q;
++ }
++ if (g != NULL) {
++ BN_free(d->g);
++ d->g = g;
++ }
++
++ return 1;
++}
++#endif /* HAVE_DSA_SET0_PQG */
++
++#ifndef HAVE_DSA_GET0_KEY
++void
++DSA_get0_key(const DSA *d, const BIGNUM **pub_key, const BIGNUM **priv_key)
++{
++ if (pub_key != NULL)
++ *pub_key = d->pub_key;
++ if (priv_key != NULL)
++ *priv_key = d->priv_key;
++}
++#endif /* HAVE_DSA_GET0_KEY */
++
++#ifndef HAVE_DSA_SET0_KEY
++int
++DSA_set0_key(DSA *d, BIGNUM *pub_key, BIGNUM *priv_key)
++{
++ if (d->pub_key == NULL && pub_key == NULL)
++ return 0;
++
++ if (pub_key != NULL) {
++ BN_free(d->pub_key);
++ d->pub_key = pub_key;
++ }
++ if (priv_key != NULL) {
++ BN_free(d->priv_key);
++ d->priv_key = priv_key;
++ }
++
++ return 1;
++}
++#endif /* HAVE_DSA_SET0_KEY */
++
++#ifndef HAVE_RSA_GET0_KEY
++void
++RSA_get0_key(const RSA *r, const BIGNUM **n, const BIGNUM **e, const BIGNUM **d)
++{
++ if (n != NULL)
++ *n = r->n;
++ if (e != NULL)
++ *e = r->e;
++ if (d != NULL)
++ *d = r->d;
++}
++#endif /* HAVE_RSA_GET0_KEY */
++
++#ifndef HAVE_RSA_SET0_KEY
++int
++RSA_set0_key(RSA *r, BIGNUM *n, BIGNUM *e, BIGNUM *d)
++{
++ if ((r->n == NULL && n == NULL) || (r->e == NULL && e == NULL))
++ return 0;
++
++ if (n != NULL) {
++ BN_free(r->n);
++ r->n = n;
++ }
++ if (e != NULL) {
++ BN_free(r->e);
++ r->e = e;
++ }
++ if (d != NULL) {
++ BN_free(r->d);
++ r->d = d;
++ }
++
++ return 1;
++}
++#endif /* HAVE_RSA_SET0_KEY */
++
++#ifndef HAVE_RSA_GET0_CRT_PARAMS
++void
++RSA_get0_crt_params(const RSA *r, const BIGNUM **dmp1, const BIGNUM **dmq1,
++ const BIGNUM **iqmp)
++{
++ if (dmp1 != NULL)
++ *dmp1 = r->dmp1;
++ if (dmq1 != NULL)
++ *dmq1 = r->dmq1;
++ if (iqmp != NULL)
++ *iqmp = r->iqmp;
++}
++#endif /* HAVE_RSA_GET0_CRT_PARAMS */
++
++#ifndef HAVE_RSA_SET0_CRT_PARAMS
++int
++RSA_set0_crt_params(RSA *r, BIGNUM *dmp1, BIGNUM *dmq1, BIGNUM *iqmp)
++{
++ if ((r->dmp1 == NULL && dmp1 == NULL) ||
++ (r->dmq1 == NULL && dmq1 == NULL) ||
++ (r->iqmp == NULL && iqmp == NULL))
++ return 0;
++
++ if (dmp1 != NULL) {
++ BN_free(r->dmp1);
++ r->dmp1 = dmp1;
++ }
++ if (dmq1 != NULL) {
++ BN_free(r->dmq1);
++ r->dmq1 = dmq1;
++ }
++ if (iqmp != NULL) {
++ BN_free(r->iqmp);
++ r->iqmp = iqmp;
++ }
++
++ return 1;
++}
++#endif /* HAVE_RSA_SET0_CRT_PARAMS */
++
++#ifndef HAVE_RSA_GET0_FACTORS
++void
++RSA_get0_factors(const RSA *r, const BIGNUM **p, const BIGNUM **q)
++{
++ if (p != NULL)
++ *p = r->p;
++ if (q != NULL)
++ *q = r->q;
++}
++#endif /* HAVE_RSA_GET0_FACTORS */
++
++#ifndef HAVE_RSA_SET0_FACTORS
++int
++RSA_set0_factors(RSA *r, BIGNUM *p, BIGNUM *q)
++{
++ if ((r->p == NULL && p == NULL) || (r->q == NULL && q == NULL))
++ return 0;
++
++ if (p != NULL) {
++ BN_free(r->p);
++ r->p = p;
++ }
++ if (q != NULL) {
++ BN_free(r->q);
++ r->q = q;
++ }
++
++ return 1;
++}
++#endif /* HAVE_RSA_SET0_FACTORS */
++
++#ifndef HAVE_EVP_CIPHER_CTX_GET_IV
++int
++EVP_CIPHER_CTX_get_iv(const EVP_CIPHER_CTX *ctx, unsigned char *iv, size_t len)
++{
++ if (ctx == NULL)
++ return 0;
++ if (EVP_CIPHER_CTX_iv_length(ctx) < 0)
++ return 0;
++ if (len != (size_t)EVP_CIPHER_CTX_iv_length(ctx))
++ return 0;
++ if (len > EVP_MAX_IV_LENGTH)
++ return 0; /* sanity check; shouldn't happen */
++ /*
++ * Skip the memcpy entirely when the requested IV length is zero,
++ * since the iv pointer may be NULL or invalid.
++ */
++ if (len != 0) {
++ if (iv == NULL)
++ return 0;
++# ifdef HAVE_EVP_CIPHER_CTX_IV
++ memcpy(iv, EVP_CIPHER_CTX_iv(ctx), len);
++# else
++ memcpy(iv, ctx->iv, len);
++# endif /* HAVE_EVP_CIPHER_CTX_IV */
++ }
++ return 1;
++}
++#endif /* HAVE_EVP_CIPHER_CTX_GET_IV */
++
++#ifndef HAVE_EVP_CIPHER_CTX_SET_IV
++int
++EVP_CIPHER_CTX_set_iv(EVP_CIPHER_CTX *ctx, const unsigned char *iv, size_t len)
++{
++ if (ctx == NULL)
++ return 0;
++ if (EVP_CIPHER_CTX_iv_length(ctx) < 0)
++ return 0;
++ if (len != (size_t)EVP_CIPHER_CTX_iv_length(ctx))
++ return 0;
++ if (len > EVP_MAX_IV_LENGTH)
++ return 0; /* sanity check; shouldn't happen */
++ /*
++ * Skip the memcpy entirely when the requested IV length is zero,
++ * since the iv pointer may be NULL or invalid.
++ */
++ if (len != 0) {
++ if (iv == NULL)
++ return 0;
++# ifdef HAVE_EVP_CIPHER_CTX_IV_NOCONST
++ memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, len);
++# else
++ memcpy(ctx->iv, iv, len);
++# endif /* HAVE_EVP_CIPHER_CTX_IV_NOCONST */
++ }
++ return 1;
++}
++#endif /* HAVE_EVP_CIPHER_CTX_SET_IV */
++
++#ifndef HAVE_DSA_SIG_GET0
++void
++DSA_SIG_get0(const DSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps)
++{
++ if (pr != NULL)
++ *pr = sig->r;
++ if (ps != NULL)
++ *ps = sig->s;
++}
++#endif /* HAVE_DSA_SIG_GET0 */
++
++#ifndef HAVE_DSA_SIG_SET0
++int
++DSA_SIG_set0(DSA_SIG *sig, BIGNUM *r, BIGNUM *s)
++{
++ if (r == NULL || s == NULL)
++ return 0;
++
++ BN_clear_free(sig->r);
++ sig->r = r;
++ BN_clear_free(sig->s);
++ sig->s = s;
++
++ return 1;
++}
++#endif /* HAVE_DSA_SIG_SET0 */
++
++#ifndef HAVE_ECDSA_SIG_GET0
++void
++ECDSA_SIG_get0(const ECDSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps)
++{
++ if (pr != NULL)
++ *pr = sig->r;
++ if (ps != NULL)
++ *ps = sig->s;
++}
++#endif /* HAVE_ECDSA_SIG_GET0 */
++
++#ifndef HAVE_ECDSA_SIG_SET0
++int
++ECDSA_SIG_set0(ECDSA_SIG *sig, BIGNUM *r, BIGNUM *s)
++{
++ if (r == NULL || s == NULL)
++ return 0;
++
++ BN_clear_free(sig->r);
++ BN_clear_free(sig->s);
++ sig->r = r;
++ sig->s = s;
++ return 1;
++}
++#endif /* HAVE_ECDSA_SIG_SET0 */
++
++#ifndef HAVE_DH_GET0_PQG
++void
++DH_get0_pqg(const DH *dh, const BIGNUM **p, const BIGNUM **q, const BIGNUM **g)
++{
++ if (p != NULL)
++ *p = dh->p;
++ if (q != NULL)
++ *q = dh->q;
++ if (g != NULL)
++ *g = dh->g;
++}
++#endif /* HAVE_DH_GET0_PQG */
++
++#ifndef HAVE_DH_SET0_PQG
++int
++DH_set0_pqg(DH *dh, BIGNUM *p, BIGNUM *q, BIGNUM *g)
++{
++ if ((dh->p == NULL && p == NULL) || (dh->g == NULL && g == NULL))
++ return 0;
++
++ if (p != NULL) {
++ BN_free(dh->p);
++ dh->p = p;
++ }
++ if (q != NULL) {
++ BN_free(dh->q);
++ dh->q = q;
++ }
++ if (g != NULL) {
++ BN_free(dh->g);
++ dh->g = g;
++ }
++
++ return 1;
++}
++#endif /* HAVE_DH_SET0_PQG */
++
++#ifndef HAVE_DH_GET0_KEY
++void
++DH_get0_key(const DH *dh, const BIGNUM **pub_key, const BIGNUM **priv_key)
++{
++ if (pub_key != NULL)
++ *pub_key = dh->pub_key;
++ if (priv_key != NULL)
++ *priv_key = dh->priv_key;
++}
++#endif /* HAVE_DH_GET0_KEY */
++
++#ifndef HAVE_DH_SET0_KEY
++int
++DH_set0_key(DH *dh, BIGNUM *pub_key, BIGNUM *priv_key)
++{
++ if (pub_key != NULL) {
++ BN_free(dh->pub_key);
++ dh->pub_key = pub_key;
++ }
++ if (priv_key != NULL) {
++ BN_free(dh->priv_key);
++ dh->priv_key = priv_key;
++ }
++
++ return 1;
++}
++#endif /* HAVE_DH_SET0_KEY */
++
++#ifndef HAVE_DH_SET_LENGTH
++int
++DH_set_length(DH *dh, long length)
++{
++ if (length < 0 || length > INT_MAX)
++ return 0;
++
++ dh->length = length;
++ return 1;
++}
++#endif /* HAVE_DH_SET_LENGTH */
++
++#ifndef HAVE_RSA_METH_FREE
++void
++RSA_meth_free(RSA_METHOD *meth)
++{
++ if (meth != NULL) {
++ free((char *)meth->name);
++ free(meth);
++ }
++}
++#endif /* HAVE_RSA_METH_FREE */
++
++#ifndef HAVE_RSA_METH_DUP
++RSA_METHOD *
++RSA_meth_dup(const RSA_METHOD *meth)
++{
++ RSA_METHOD *copy;
++
++ if ((copy = calloc(1, sizeof(*copy))) == NULL)
++ return NULL;
++ memcpy(copy, meth, sizeof(*copy));
++ if ((copy->name = strdup(meth->name)) == NULL) {
++ free(copy);
++ return NULL;
++ }
++
++ return copy;
++}
++#endif /* HAVE_RSA_METH_DUP */
++
++#ifndef HAVE_RSA_METH_SET1_NAME
++int
++RSA_meth_set1_name(RSA_METHOD *meth, const char *name)
++{
++ char *copy;
++
++ if ((copy = strdup(name)) == NULL)
++ return 0;
++ free((char *)meth->name);
++ meth->name = copy;
++ return 1;
++}
++#endif /* HAVE_RSA_METH_SET1_NAME */
++
++#ifndef HAVE_RSA_METH_GET_FINISH
++int
++(*RSA_meth_get_finish(const RSA_METHOD *meth))(RSA *rsa)
++{
++ return meth->finish;
++}
++#endif /* HAVE_RSA_METH_GET_FINISH */
++
++#ifndef HAVE_RSA_METH_SET_PRIV_ENC
++int
++RSA_meth_set_priv_enc(RSA_METHOD *meth, int (*priv_enc)(int flen,
++ const unsigned char *from, unsigned char *to, RSA *rsa, int padding))
++{
++ meth->rsa_priv_enc = priv_enc;
++ return 1;
++}
++#endif /* HAVE_RSA_METH_SET_PRIV_ENC */
++
++#ifndef HAVE_RSA_METH_SET_PRIV_DEC
++int
++RSA_meth_set_priv_dec(RSA_METHOD *meth, int (*priv_dec)(int flen,
++ const unsigned char *from, unsigned char *to, RSA *rsa, int padding))
++{
++ meth->rsa_priv_dec = priv_dec;
++ return 1;
++}
++#endif /* HAVE_RSA_METH_SET_PRIV_DEC */
++
++#ifndef HAVE_RSA_METH_SET_FINISH
++int
++RSA_meth_set_finish(RSA_METHOD *meth, int (*finish)(RSA *rsa))
++{
++ meth->finish = finish;
++ return 1;
++}
++#endif /* HAVE_RSA_METH_SET_FINISH */
++
++#ifndef HAVE_EVP_PKEY_GET0_RSA
++RSA *
++EVP_PKEY_get0_RSA(EVP_PKEY *pkey)
++{
++ if (pkey->type != EVP_PKEY_RSA) {
++ /* EVPerror(EVP_R_EXPECTING_AN_RSA_KEY); */
++ return NULL;
++ }
++ return pkey->pkey.rsa;
++}
++#endif /* HAVE_EVP_PKEY_GET0_RSA */
++
++#ifndef HAVE_EVP_MD_CTX_NEW
++EVP_MD_CTX *
++EVP_MD_CTX_new(void)
++{
++ return calloc(1, sizeof(EVP_MD_CTX));
++}
++#endif /* HAVE_EVP_MD_CTX_NEW */
++
++#ifndef HAVE_EVP_MD_CTX_FREE
++void
++EVP_MD_CTX_free(EVP_MD_CTX *ctx)
++{
++ if (ctx == NULL)
++ return;
++
++ EVP_MD_CTX_cleanup(ctx);
++
++ free(ctx);
++}
++#endif /* HAVE_EVP_MD_CTX_FREE */
++
++#endif /* WITH_OPENSSL */
+diff --git a/openbsd-compat/openssl-compat.h b/openbsd-compat/openssl-compat.h
+index 2ae42bac..9e0264c0 100644
+--- a/openbsd-compat/openssl-compat.h
++++ b/openbsd-compat/openssl-compat.h
+@@ -24,6 +24,8 @@
+ #include <openssl/evp.h>
+ #include <openssl/rsa.h>
+ #include <openssl/dsa.h>
++#include <openssl/ecdsa.h>
++#include <openssl/dh.h>
+
+ int ssh_compatible_openssl(long, long);
+
+@@ -96,5 +98,139 @@ void ssh_OpenSSL_add_all_algorithms(void);
+
+ #endif /* SSH_DONT_OVERLOAD_OPENSSL_FUNCS */
+
++/* LibreSSL/OpenSSL 1.1x API compat */
++#ifndef HAVE_DSA_GET0_PQG
++void DSA_get0_pqg(const DSA *d, const BIGNUM **p, const BIGNUM **q,
++ const BIGNUM **g);
++#endif /* HAVE_DSA_GET0_PQG */
++
++#ifndef HAVE_DSA_SET0_PQG
++int DSA_set0_pqg(DSA *d, BIGNUM *p, BIGNUM *q, BIGNUM *g);
++#endif /* HAVE_DSA_SET0_PQG */
++
++#ifndef HAVE_DSA_GET0_KEY
++void DSA_get0_key(const DSA *d, const BIGNUM **pub_key,
++ const BIGNUM **priv_key);
++#endif /* HAVE_DSA_GET0_KEY */
++
++#ifndef HAVE_DSA_SET0_KEY
++int DSA_set0_key(DSA *d, BIGNUM *pub_key, BIGNUM *priv_key);
++#endif /* HAVE_DSA_SET0_KEY */
++
++#ifndef HAVE_EVP_CIPHER_CTX_GET_IV
++int EVP_CIPHER_CTX_get_iv(const EVP_CIPHER_CTX *ctx,
++ unsigned char *iv, size_t len);
++#endif /* HAVE_EVP_CIPHER_CTX_GET_IV */
++
++#ifndef HAVE_EVP_CIPHER_CTX_SET_IV
++int EVP_CIPHER_CTX_set_iv(EVP_CIPHER_CTX *ctx,
++ const unsigned char *iv, size_t len);
++#endif /* HAVE_EVP_CIPHER_CTX_SET_IV */
++
++#ifndef HAVE_RSA_GET0_KEY
++void RSA_get0_key(const RSA *r, const BIGNUM **n, const BIGNUM **e,
++ const BIGNUM **d);
++#endif /* HAVE_RSA_GET0_KEY */
++
++#ifndef HAVE_RSA_SET0_KEY
++int RSA_set0_key(RSA *r, BIGNUM *n, BIGNUM *e, BIGNUM *d);
++#endif /* HAVE_RSA_SET0_KEY */
++
++#ifndef HAVE_RSA_GET0_CRT_PARAMS
++void RSA_get0_crt_params(const RSA *r, const BIGNUM **dmp1, const BIGNUM **dmq1,
++ const BIGNUM **iqmp);
++#endif /* HAVE_RSA_GET0_CRT_PARAMS */
++
++#ifndef HAVE_RSA_SET0_CRT_PARAMS
++int RSA_set0_crt_params(RSA *r, BIGNUM *dmp1, BIGNUM *dmq1, BIGNUM *iqmp);
++#endif /* HAVE_RSA_SET0_CRT_PARAMS */
++
++#ifndef HAVE_RSA_GET0_FACTORS
++void RSA_get0_factors(const RSA *r, const BIGNUM **p, const BIGNUM **q);
++#endif /* HAVE_RSA_GET0_FACTORS */
++
++#ifndef HAVE_RSA_SET0_FACTORS
++int RSA_set0_factors(RSA *r, BIGNUM *p, BIGNUM *q);
++#endif /* HAVE_RSA_SET0_FACTORS */
++
++#ifndef DSA_SIG_GET0
++void DSA_SIG_get0(const DSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps);
++#endif /* DSA_SIG_GET0 */
++
++#ifndef DSA_SIG_SET0
++int DSA_SIG_set0(DSA_SIG *sig, BIGNUM *r, BIGNUM *s);
++#endif /* DSA_SIG_SET0 */
++
++#ifndef HAVE_ECDSA_SIG_GET0
++void ECDSA_SIG_get0(const ECDSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps);
++#endif /* HAVE_ECDSA_SIG_GET0 */
++
++#ifndef HAVE_ECDSA_SIG_SET0
++int ECDSA_SIG_set0(ECDSA_SIG *sig, BIGNUM *r, BIGNUM *s);
++#endif /* HAVE_ECDSA_SIG_SET0 */
++
++#ifndef HAVE_DH_GET0_PQG
++void DH_get0_pqg(const DH *dh, const BIGNUM **p, const BIGNUM **q,
++ const BIGNUM **g);
++#endif /* HAVE_DH_GET0_PQG */
++
++#ifndef HAVE_DH_SET0_PQG
++int DH_set0_pqg(DH *dh, BIGNUM *p, BIGNUM *q, BIGNUM *g);
++#endif /* HAVE_DH_SET0_PQG */
++
++#ifndef HAVE_DH_GET0_KEY
++void DH_get0_key(const DH *dh, const BIGNUM **pub_key, const BIGNUM **priv_key);
++#endif /* HAVE_DH_GET0_KEY */
++
++#ifndef HAVE_DH_SET0_KEY
++int DH_set0_key(DH *dh, BIGNUM *pub_key, BIGNUM *priv_key);
++#endif /* HAVE_DH_SET0_KEY */
++
++#ifndef HAVE_DH_SET_LENGTH
++int DH_set_length(DH *dh, long length);
++#endif /* HAVE_DH_SET_LENGTH */
++
++#ifndef HAVE_RSA_METH_FREE
++void RSA_meth_free(RSA_METHOD *meth);
++#endif /* HAVE_RSA_METH_FREE */
++
++#ifndef HAVE_RSA_METH_DUP
++RSA_METHOD *RSA_meth_dup(const RSA_METHOD *meth);
++#endif /* HAVE_RSA_METH_DUP */
++
++#ifndef HAVE_RSA_METH_SET1_NAME
++int RSA_meth_set1_name(RSA_METHOD *meth, const char *name);
++#endif /* HAVE_RSA_METH_SET1_NAME */
++
++#ifndef HAVE_RSA_METH_GET_FINISH
++int (*RSA_meth_get_finish(const RSA_METHOD *meth))(RSA *rsa);
++#endif /* HAVE_RSA_METH_GET_FINISH */
++
++#ifndef HAVE_RSA_METH_SET_PRIV_ENC
++int RSA_meth_set_priv_enc(RSA_METHOD *meth, int (*priv_enc)(int flen,
++ const unsigned char *from, unsigned char *to, RSA *rsa, int padding));
++#endif /* HAVE_RSA_METH_SET_PRIV_ENC */
++
++#ifndef HAVE_RSA_METH_SET_PRIV_DEC
++int RSA_meth_set_priv_dec(RSA_METHOD *meth, int (*priv_dec)(int flen,
++ const unsigned char *from, unsigned char *to, RSA *rsa, int padding));
++#endif /* HAVE_RSA_METH_SET_PRIV_DEC */
++
++#ifndef HAVE_RSA_METH_SET_FINISH
++int RSA_meth_set_finish(RSA_METHOD *meth, int (*finish)(RSA *rsa));
++#endif /* HAVE_RSA_METH_SET_FINISH */
++
++#ifndef HAVE_EVP_PKEY_GET0_RSA
++RSA *EVP_PKEY_get0_RSA(EVP_PKEY *pkey);
++#endif /* HAVE_EVP_PKEY_GET0_RSA */
++
++#ifndef HAVE_EVP_MD_CTX_new
++EVP_MD_CTX *EVP_MD_CTX_new(void);
++#endif /* HAVE_EVP_MD_CTX_new */
++
++#ifndef HAVE_EVP_MD_CTX_free
++void EVP_MD_CTX_free(EVP_MD_CTX *ctx);
++#endif /* HAVE_EVP_MD_CTX_free */
++
+ #endif /* WITH_OPENSSL */
+ #endif /* _OPENSSL_COMPAT_H */
+diff --git a/ssh-dss.c b/ssh-dss.c
+index 631b1571..a23c383d 100644
+--- a/ssh-dss.c
++++ b/ssh-dss.c
+@@ -43,6 +43,8 @@
+ #define SSHKEY_INTERNAL
+ #include "sshkey.h"
+
++#include "openbsd-compat/openssl-compat.h"
++
+ #define INTBLOB_LEN 20
+ #define SIGBLOB_LEN (2*INTBLOB_LEN)
+
+diff --git a/ssh-ecdsa.c b/ssh-ecdsa.c
+index 9e92af04..2f553175 100644
+--- a/ssh-ecdsa.c
++++ b/ssh-ecdsa.c
+@@ -43,6 +43,8 @@
+ #define SSHKEY_INTERNAL
+ #include "sshkey.h"
+
++#include "openbsd-compat/openssl-compat.h"
++
+ /* ARGSUSED */
+ int
+ ssh_ecdsa_sign(const struct sshkey *key, u_char **sigp, size_t *lenp,
+diff --git a/ssh-pkcs11-client.c b/ssh-pkcs11-client.c
+index bcc18c6b..d1241ce6 100644
+--- a/ssh-pkcs11-client.c
++++ b/ssh-pkcs11-client.c
+@@ -32,6 +32,8 @@
+
+ #include <openssl/rsa.h>
+
++#include "openbsd-compat/openssl-compat.h"
++
+ #include "pathnames.h"
+ #include "xmalloc.h"
+ #include "sshbuf.h"
+diff --git a/ssh-pkcs11.c b/ssh-pkcs11.c
+index c35f9415..775de964 100644
+--- a/ssh-pkcs11.c
++++ b/ssh-pkcs11.c
+@@ -30,6 +30,7 @@
+ #include <dlfcn.h>
+
+ #include "openbsd-compat/sys-queue.h"
++#include "openbsd-compat/openssl-compat.h"
+
+ #include <openssl/x509.h>
+
+diff --git a/ssh-rsa.c b/ssh-rsa.c
+index 2788f334..9b14f9a9 100644
+--- a/ssh-rsa.c
++++ b/ssh-rsa.c
+@@ -35,6 +35,8 @@
+ #include "digest.h"
+ #include "log.h"
+
++#include "openbsd-compat/openssl-compat.h"
++
+ static int openssh_RSA_verify(int, u_char *, size_t, u_char *, size_t, RSA *);
+
+ static const char *
+diff --git a/sshkey.c b/sshkey.c
+index a5e6e60e..18b253d9 100644
+--- a/sshkey.c
++++ b/sshkey.c
+@@ -60,6 +60,8 @@
+
+ #include "xmss_fast.h"
+
++#include "openbsd-compat/openssl-compat.h"
++
+ /* openssh private key file format */
+ #define MARK_BEGIN "-----BEGIN OPENSSH PRIVATE KEY-----\n"
+ #define MARK_END "-----END OPENSSH PRIVATE KEY-----\n"
+@@ -1727,7 +1729,6 @@ int
+ sshkey_from_private(const struct sshkey *k, struct sshkey **pkp)
+ {
+ struct sshkey *n = NULL;
+- int ret = SSH_ERR_INTERNAL_ERROR;
+ int r = SSH_ERR_INTERNAL_ERROR;
+ #ifdef WITH_OPENSSL
+ const BIGNUM *rsa_n, *rsa_e;
+--
+2.16.4
+
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