+++ /dev/null
-/*
- * arch/ubicom32/crypto/des_ubicom32.c
- * Ubicom32 implementation of the DES Cipher Algorithm.
- *
- * (C) Copyright 2009, Ubicom, Inc.
- *
- * This file is part of the Ubicom32 Linux Kernel Port.
- *
- * The Ubicom32 Linux Kernel Port is free software: you can redistribute
- * it and/or modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation, either version 2 of the
- * License, or (at your option) any later version.
- *
- * The Ubicom32 Linux Kernel Port is distributed in the hope that it
- * will be useful, but WITHOUT ANY WARRANTY; without even the implied
- * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
- * the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with the Ubicom32 Linux Kernel Port. If not,
- * see <http://www.gnu.org/licenses/>.
- *
- * Ubicom32 implementation derived from (with many thanks):
- * arch/m68knommu
- * arch/blackfin
- * arch/parisc
- */
-#include <crypto/algapi.h>
-#include <linux/init.h>
-#include <linux/module.h>
-
-#include "crypto_ubicom32.h"
-extern int crypto_des_check_key(const u8 *key, unsigned int keylen, u32 *flags);
-
-#define DES_BLOCK_SIZE 8
-#define DES_KEY_SIZE 8
-
-#define DES3_192_KEY_SIZE (3 * DES_KEY_SIZE)
-#define DES3_192_BLOCK_SIZE DES_BLOCK_SIZE
-
-#define DES3_SUB_KEY(key, i) (((u8 *)key) + (i * DES_KEY_SIZE))
-
-enum des_ops {
- DES_ENCRYPT,
- DES_DECRYPT,
-
- DES3_EDE_ENCRYPT,
- DES3_EDE_DECRYPT,
-
-#ifdef DES3_EEE
- DES3_EEE_ENCRYPT,
- DES3_EEE_DECRYPT,
-#endif
-};
-
-struct ubicom32_des_ctx {
- u8 key[3 * DES_KEY_SIZE];
- u32 ctrl;
- int key_len;
-};
-
-static inline void des_hw_set_key(const u8 *key, u8 key_len)
-{
- /*
- * HW 3DES is not tested yet, use DES just as ipOS
- */
- DES_SET_KEY(key);
-}
-
-static inline void des_hw_cipher(u8 *out, const u8 *in)
-{
- SEC_SET_INPUT_2W(in);
-
- asm volatile (
- " ; start DES by writing 0x38(SECURITY_BASE) \n\t"
- " move.4 0x38(%0), #0x01 \n\t"
- " pipe_flush 0 \n\t"
- " \n\t"
- " ; wait for the module to calculate the output \n\t"
- " btst 0x04(%0), #0 \n\t"
- " jmpne.f .-4 \n\t"
- :
- : "a" (SEC_BASE)
- : "cc"
- );
-
- SEC_GET_OUTPUT_2W(out);
-}
-
-
-static void inline des3_hw_ede_encrypt(u8 *keys, u8 *out, const u8 *in)
-{
- hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT);
- des_hw_set_key(DES3_SUB_KEY(keys, 0), DES_KEY_SIZE);
- des_hw_cipher(out, in);
-
- hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT);
- des_hw_set_key(DES3_SUB_KEY(keys, 1), DES_KEY_SIZE);
- des_hw_cipher(out, out);
-
- hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT);
- des_hw_set_key(DES3_SUB_KEY(keys, 2), DES_KEY_SIZE);
- des_hw_cipher(out, out);
-}
-
-static void inline des3_hw_ede_decrypt(u8 *keys, u8 *out, const u8 *in)
-{
- hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT);
- des_hw_set_key(DES3_SUB_KEY(keys, 2), DES_KEY_SIZE);
- des_hw_cipher(out, in);
-
- hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT);
- des_hw_set_key(DES3_SUB_KEY(keys, 1), DES_KEY_SIZE);
- des_hw_cipher(out, out);
-
- hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT);
- des_hw_set_key(DES3_SUB_KEY(keys, 0), DES_KEY_SIZE);
- des_hw_cipher(out, out);
-}
-
-#ifdef DES3_EEE
-static void inline des3_hw_eee_encrypt(u8 *keys, u8 *out, const u8 *in)
-{
- hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT);
- des_hw_set_key(DES3_SUB_KEY(keys, 0), 2);
- des_hw_cipher(out, in);
-
- hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT);
- des_hw_set_key(DES3_SUB_KEY(keys, 1), 2);
- des_hw_cipher(out, out);
-
- hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT);
- des_hw_set_key(DES3_SUB_KEY(keys, 2), 2);
- des_hw_cipher(out, out);
-}
-
-static void inline des3_hw_eee_decrypt(u8 *keys, u8 *out, const u8 *in)
-{
- hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT);
- des_hw_set_key(DES3_SUB_KEY(keys, 2), 2);
- des_hw_cipher(out, in);
-
- hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT);
- des_hw_set_key(DES3_SUB_KEY(keys, 1), 2);
- des_hw_cipher(out, out);
-
- hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT);
- des_hw_set_key(DES3_SUB_KEY(keys, 0), 2);
- des_hw_cipher(out, out);
-}
-#endif
-
-static int des_setkey(struct crypto_tfm *tfm, const u8 *key,
- unsigned int keylen)
-{
- struct ubicom32_des_ctx *dctx = crypto_tfm_ctx(tfm);
- u32 *flags = &tfm->crt_flags;
- int ret;
-
- /* test if key is valid (not a weak key) */
- ret = crypto_des_check_key(key, keylen, flags);
- if (ret == 0) {
- memcpy(dctx->key, key, keylen);
- dctx->key_len = keylen;
- //dctx->ctrl = (keylen == DES_KEY_SIZE) ? SEC_ALG_DES : SEC_ALG_3DES
- /* 2DES and 3DES are both implemented with DES hw function */
- dctx->ctrl = SEC_ALG_DES;
- }
- return ret;
-}
-
-static inline void des_cipher_1b(struct crypto_tfm *tfm, u8 *out, const u8 *in, u32 extra_flags)
-{
- const struct ubicom32_des_ctx *uctx = crypto_tfm_ctx(tfm);
-
- hw_crypto_lock();
- hw_crypto_check();
- hw_crypto_set_ctrl(uctx->ctrl | extra_flags);
-
- des_hw_set_key(uctx->key, uctx->key_len);
- des_hw_cipher(out, in);
-
- hw_crypto_unlock();
-}
-
-static void des_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
-{
- des_cipher_1b(tfm, out, in, SEC_DIR_ENCRYPT);
-}
-
-static void des_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
-{
- des_cipher_1b(tfm, out, in, SEC_DIR_DECRYPT);
-}
-
-static struct crypto_alg des_alg = {
- .cra_name = "des",
- .cra_driver_name = "des-ubicom32",
- .cra_priority = CRYPTO_UBICOM32_PRIORITY,
- .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
- .cra_blocksize = DES_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct ubicom32_des_ctx),
- .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1,
- .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1,
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(des_alg.cra_list),
- .cra_u = {
- .cipher = {
- .cia_min_keysize = DES_KEY_SIZE,
- .cia_max_keysize = DES_KEY_SIZE,
- .cia_setkey = des_setkey,
- .cia_encrypt = des_encrypt,
- .cia_decrypt = des_decrypt,
- }
- }
-};
-
-static void ecb_des_ciper_loop(u8 *out, u8 *in, unsigned int n)
-{
- while (likely(n)) {
- des_hw_cipher(out, in);
- out += DES_BLOCK_SIZE;
- in += DES_BLOCK_SIZE;
- n -= DES_BLOCK_SIZE;
- }
-}
-
-static void ecb_des3_ede_encrypt_loop(u8 *keys, u8 *out, u8 *in, unsigned int n)
-{
- while (likely(n)) {
- des3_hw_ede_encrypt(keys, out, in);
-
- out += DES_BLOCK_SIZE;
- in += DES_BLOCK_SIZE;
- n -= DES_BLOCK_SIZE;
- }
-}
-
-static void ecb_des3_ede_decrypt_loop(u8 *keys, u8 *out, u8 *in, unsigned int n)
-{
- while (likely(n)) {
- des3_hw_ede_decrypt(keys, out, in);
-
- out += DES_BLOCK_SIZE;
- in += DES_BLOCK_SIZE;
- n -= DES_BLOCK_SIZE;
- }
-}
-
-#ifdef DES3_EEE
-static void ecb_des3_eee_encrypt_loop(u8 *keys, u8 *out, u8 *in, unsigned int n)
-{
- while (likely(n)) {
- des3_hw_eee_encrypt(keys, out, in);
-
- out += DES_BLOCK_SIZE;
- in += DES_BLOCK_SIZE;
- n -= DES_BLOCK_SIZE;
- }
-}
-
-static void ecb_des3_eee_decrypt_loop(u8 *keys, u8 *out, u8 *in, unsigned int n)
-{
- while (likely(n)) {
- des3_hw_eee_decrypt(keys, out, in);
-
- out += DES_BLOCK_SIZE;
- in += DES_BLOCK_SIZE;
- n -= DES_BLOCK_SIZE;
- }
-}
-#endif
-
-static inline void ecb_des_cipher_n(struct ubicom32_des_ctx *uctx, enum des_ops op, u8 *out, u8 *in, unsigned int n)
-{
- switch (op) {
- case DES_ENCRYPT:
- case DES_DECRYPT:
- /* set the right algo, direction and key once */
- hw_crypto_set_ctrl(SEC_ALG_DES | (op == DES_ENCRYPT ? SEC_DIR_ENCRYPT : 0));
- des_hw_set_key(uctx->key, uctx->key_len);
- ecb_des_ciper_loop(out, in, n);
- break;
-
- case DES3_EDE_ENCRYPT:
- ecb_des3_ede_encrypt_loop(uctx->key, out, in, n);
- break;
-
- case DES3_EDE_DECRYPT:
- ecb_des3_ede_decrypt_loop(uctx->key, out, in, n);
- break;
-
-#ifdef DES3_EEE
- case DES3_EEE_ENCRYPT:
- ecb_des3_eee_encrypt_loop(uctx->key, out, in, n);
- break;
-
- case DES3_EEE_DECRYPT:
- ecb_des3_eee_decrypt_loop(uctx->key, out, in, n);
- break;
-#endif
- }
-}
-
-static inline void des_xor_2w(u32 *data, u32 *iv)
-{
- data[0] ^= iv[0];
- data[1] ^= iv[1];
-}
-
-static void cbc_des_encrypt_loop(u8 *out, u8 *in, u8 *iv, unsigned int n)
-{
- while (likely(n)) {
- des_xor_2w((u32 *)in, (u32 *)iv);
- des_hw_cipher(out, in);
- SEC_COPY_2W(iv, out);
- out += DES_BLOCK_SIZE;
- in += DES_BLOCK_SIZE;
- n -= DES_BLOCK_SIZE;
- }
-}
-
-static void cbc_des_decrypt_loop(u8 *out, u8 *in, u8 *iv, unsigned int n)
-{
- u8 next_iv[DES_BLOCK_SIZE];
- while (likely(n)) {
- SEC_COPY_2W(next_iv, in);
- des_hw_cipher(out, in);
- des_xor_2w((u32 *)out, (u32 *)iv);
- SEC_COPY_2W(iv, next_iv);
-
- out += DES_BLOCK_SIZE;
- in += DES_BLOCK_SIZE;
- n -= DES_BLOCK_SIZE;
- }
-}
-
-static void cbc_des3_ede_encrypt_loop(u8 *keys, u8 *out, u8 *in, u8 *iv, unsigned int n)
-{
- while (likely(n)) {
- des_xor_2w((u32 *)in, (u32 *)iv);
- des3_hw_ede_encrypt(keys, out, in);
- SEC_COPY_2W(iv, out);
-
- out += DES_BLOCK_SIZE;
- in += DES_BLOCK_SIZE;
- n -= DES_BLOCK_SIZE;
- }
-}
-
-static void cbc_des3_ede_decrypt_loop(u8 *keys, u8 *out, u8 *in, u8 *iv, unsigned int n)
-{
- u8 next_iv[DES_BLOCK_SIZE];
- while (likely(n)) {
- SEC_COPY_2W(next_iv, in);
- des3_hw_ede_decrypt(keys, out, in);
- des_xor_2w((u32 *)out, (u32 *)iv);
- SEC_COPY_2W(iv, next_iv);
-
- out += DES_BLOCK_SIZE;
- in += DES_BLOCK_SIZE;
- n -= DES_BLOCK_SIZE;
- }
-}
-
-#ifdef DES3_EEE
-static void cbc_des3_eee_encrypt_loop(u8 *keys, u8 *out, u8 *in, u8 *iv, unsigned int n)
-{
- while (likely(n)) {
- des_xor_2w((u32 *)in, (u32 *)iv);
- des3_hw_eee_encrypt(keys, out, in);
- SEC_COPY_2W(iv, out);
-
- out += DES_BLOCK_SIZE;
- in += DES_BLOCK_SIZE;
- n -= DES_BLOCK_SIZE;
- }
-}
-
-static void cbc_des3_eee_decrypt_loop(u8 *keys, u8 *out, u8 *in, u8 *iv, unsigned int n)
-{
- u8 next_iv[DES_BLOCK_SIZE];
- while (likely(n)) {
- SEC_COPY_2W(next_iv, in);
- des3_hw_eee_decrypt(keys, out, in);
- des_xor_2w((u32 *)out, (u32 *)iv);
- SEC_COPY_2W(iv, next_iv);
-
- out += DES_BLOCK_SIZE;
- in += DES_BLOCK_SIZE;
- n -= DES_BLOCK_SIZE;
- }
-}
-#endif
-
-static inline void cbc_des_cipher_n(struct ubicom32_des_ctx *uctx, enum des_ops op, u8 *out, u8 *in, u8 *iv, unsigned int n)
-{
- switch (op) {
- case DES_ENCRYPT:
- hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_ENCRYPT);
- des_hw_set_key(uctx->key, uctx->key_len);
- cbc_des_encrypt_loop(out, in, iv, n);
- break;
-
- case DES_DECRYPT:
- /* set the right algo, direction and key once */
- hw_crypto_set_ctrl(SEC_ALG_DES | SEC_DIR_DECRYPT);
- des_hw_set_key(uctx->key, uctx->key_len);
- cbc_des_decrypt_loop(out, in, iv, n);
- break;
-
- case DES3_EDE_ENCRYPT:
- cbc_des3_ede_encrypt_loop(uctx->key, out, in, iv, n);
- break;
-
- case DES3_EDE_DECRYPT:
- cbc_des3_ede_decrypt_loop(uctx->key, out, in, iv, n);
- break;
-
-#ifdef DES3_EEE
- case DES3_EEE_ENCRYPT:
- cbc_des3_eee_encrypt_loop(uctx->key, out, in, iv, n);
- break;
-
- case DES3_EEE_DECRYPT:
- cbc_des3_eee_decrypt_loop(uctx->key, out, in, iv, n);
- break;
-#endif
- }
-}
-
-static int des_cipher(struct blkcipher_desc *desc, struct scatterlist *dst,
- struct scatterlist *src, unsigned int nbytes, u32 extra_flags, enum des_ops op)
-{
- struct ubicom32_des_ctx *uctx = crypto_blkcipher_ctx(desc->tfm);
- int ret;
-
- struct blkcipher_walk walk;
- blkcipher_walk_init(&walk, dst, src, nbytes);
- ret = blkcipher_walk_virt(desc, &walk);
- if (ret) {
- return ret;
- }
-
- hw_crypto_lock();
- hw_crypto_check();
-
- while ((nbytes = walk.nbytes)) {
- /* only use complete blocks */
- unsigned int n = nbytes & ~(DES_BLOCK_SIZE - 1);
- u8 *out = walk.dst.virt.addr;
- u8 *in = walk.src.virt.addr;
-
- /* finish n/16 blocks */
- if (extra_flags & SEC_CBC_SET) {
- cbc_des_cipher_n(uctx, op, out, in, walk.iv, n);
- } else {
- ecb_des_cipher_n(uctx, op, out, in, n);
- }
-
- nbytes &= DES_BLOCK_SIZE - 1;
- ret = blkcipher_walk_done(desc, &walk, nbytes);
- }
-
- hw_crypto_unlock();
- return ret;
-}
-
-static int ecb_des_encrypt(struct blkcipher_desc *desc,
- struct scatterlist *dst, struct scatterlist *src,
- unsigned int nbytes)
-{
- return des_cipher(desc, dst, src, nbytes, SEC_CBC_NONE, DES_ENCRYPT);
-}
-
-static int ecb_des_decrypt(struct blkcipher_desc *desc,
- struct scatterlist *dst, struct scatterlist *src,
- unsigned int nbytes)
-{
- return des_cipher(desc, dst, src, nbytes, SEC_CBC_NONE, DES_DECRYPT);
-}
-
-static struct crypto_alg ecb_des_alg = {
- .cra_name = "ecb(des)",
- .cra_driver_name = "ecb-des-ubicom32",
- .cra_priority = CRYPTO_UBICOM32_COMPOSITE_PRIORITY,
- .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
- .cra_blocksize = DES_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct ubicom32_des_ctx),
- .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1,
- .cra_type = &crypto_blkcipher_type,
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(ecb_des_alg.cra_list),
- .cra_u = {
- .blkcipher = {
- .min_keysize = DES_KEY_SIZE,
- .max_keysize = DES_KEY_SIZE,
- .setkey = des_setkey,
- .encrypt = ecb_des_encrypt,
- .decrypt = ecb_des_decrypt,
- }
- }
-};
-
-static int cbc_des_encrypt(struct blkcipher_desc *desc,
- struct scatterlist *dst, struct scatterlist *src,
- unsigned int nbytes)
-{
- return des_cipher(desc, dst, src, nbytes, SEC_CBC_SET, DES_ENCRYPT);
-}
-
-static int cbc_des_decrypt(struct blkcipher_desc *desc,
- struct scatterlist *dst, struct scatterlist *src,
- unsigned int nbytes)
-{
- return des_cipher(desc, dst, src, nbytes, SEC_CBC_SET, DES_DECRYPT);
-}
-
-static struct crypto_alg cbc_des_alg = {
- .cra_name = "cbc(des)",
- .cra_driver_name = "cbc-des-ubicom32",
- .cra_priority = CRYPTO_UBICOM32_COMPOSITE_PRIORITY,
- .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
- .cra_blocksize = DES_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct ubicom32_des_ctx),
- .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1,
- .cra_type = &crypto_blkcipher_type,
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(cbc_des_alg.cra_list),
- .cra_u = {
- .blkcipher = {
- .min_keysize = DES_KEY_SIZE,
- .max_keysize = DES_KEY_SIZE,
- .ivsize = DES_BLOCK_SIZE,
- .setkey = des_setkey,
- .encrypt = cbc_des_encrypt,
- .decrypt = cbc_des_decrypt,
- }
- }
-};
-
-/*
- * RFC2451:
- *
- * For DES-EDE3, there is no known need to reject weak or
- * complementation keys. Any weakness is obviated by the use of
- * multiple keys.
- *
- * However, if the first two or last two independent 64-bit keys are
- * equal (k1 == k2 or k2 == k3), then the DES3 operation is simply the
- * same as DES. Implementers MUST reject keys that exhibit this
- * property.
- *
- */
-static int des3_192_setkey(struct crypto_tfm *tfm, const u8 *key,
- unsigned int keylen)
-{
- int i, ret;
- struct ubicom32_des_ctx *dctx = crypto_tfm_ctx(tfm);
- const u8 *temp_key = key;
- u32 *flags = &tfm->crt_flags;
-
- if (!(memcmp(key, &key[DES_KEY_SIZE], DES_KEY_SIZE) &&
- memcmp(&key[DES_KEY_SIZE], &key[DES_KEY_SIZE * 2],
- DES_KEY_SIZE))) {
-
- *flags |= CRYPTO_TFM_RES_BAD_KEY_SCHED;
- return -EINVAL;
- }
- for (i = 0; i < 3; i++, temp_key += DES_KEY_SIZE) {
- ret = crypto_des_check_key(temp_key, DES_KEY_SIZE, flags);
- if (ret < 0)
- return ret;
- }
- memcpy(dctx->key, key, keylen);
- dctx->ctrl = SEC_ALG_DES; //hw 3DES not working yet
- dctx->key_len = keylen;
- return 0;
-}
-
-static void des3_192_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
-{
- struct ubicom32_des_ctx *uctx = crypto_tfm_ctx(tfm);
-
- hw_crypto_lock();
- hw_crypto_check();
-
- des3_hw_ede_encrypt(uctx->key, dst, src);
-
- hw_crypto_unlock();
-}
-
-static void des3_192_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
-{
- struct ubicom32_des_ctx *uctx = crypto_tfm_ctx(tfm);
-
- hw_crypto_lock();
- hw_crypto_check();
-
- des3_hw_ede_decrypt(uctx->key, dst, src);
-
- hw_crypto_unlock();
-}
-
-static struct crypto_alg des3_192_alg = {
- .cra_name = "des3_ede",
- .cra_driver_name = "des3_ede-ubicom32",
- .cra_priority = CRYPTO_UBICOM32_PRIORITY,
- .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
- .cra_blocksize = DES3_192_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct ubicom32_des_ctx),
- .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1,
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(des3_192_alg.cra_list),
- .cra_u = {
- .cipher = {
- .cia_min_keysize = DES3_192_KEY_SIZE,
- .cia_max_keysize = DES3_192_KEY_SIZE,
- .cia_setkey = des3_192_setkey,
- .cia_encrypt = des3_192_encrypt,
- .cia_decrypt = des3_192_decrypt,
- }
- }
-};
-
-static int ecb_des3_192_encrypt(struct blkcipher_desc *desc,
- struct scatterlist *dst,
- struct scatterlist *src, unsigned int nbytes)
-{
- return des_cipher(desc, dst, src, nbytes, SEC_CBC_NONE, DES3_EDE_ENCRYPT);
-}
-
-static int ecb_des3_192_decrypt(struct blkcipher_desc *desc,
- struct scatterlist *dst,
- struct scatterlist *src, unsigned int nbytes)
-{
- return des_cipher(desc, dst, src, nbytes, SEC_CBC_NONE, DES3_EDE_DECRYPT);
-}
-
-static struct crypto_alg ecb_des3_192_alg = {
- .cra_name = "ecb(des3_ede)",
- .cra_driver_name = "ecb-des3_ede-ubicom32",
- .cra_priority = CRYPTO_UBICOM32_COMPOSITE_PRIORITY,
- .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
- .cra_blocksize = DES3_192_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct ubicom32_des_ctx),
- .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1,
- .cra_type = &crypto_blkcipher_type,
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(
- ecb_des3_192_alg.cra_list),
- .cra_u = {
- .blkcipher = {
- .min_keysize = DES3_192_KEY_SIZE,
- .max_keysize = DES3_192_KEY_SIZE,
- .setkey = des3_192_setkey,
- .encrypt = ecb_des3_192_encrypt,
- .decrypt = ecb_des3_192_decrypt,
- }
- }
-};
-
-static int cbc_des3_192_encrypt(struct blkcipher_desc *desc,
- struct scatterlist *dst,
- struct scatterlist *src, unsigned int nbytes)
-{
- return des_cipher(desc, dst, src, nbytes, SEC_CBC_SET, DES3_EDE_ENCRYPT);
-}
-
-static int cbc_des3_192_decrypt(struct blkcipher_desc *desc,
- struct scatterlist *dst,
- struct scatterlist *src, unsigned int nbytes)
-{
- return des_cipher(desc, dst, src, nbytes, SEC_CBC_SET, DES3_EDE_DECRYPT);
-}
-
-static struct crypto_alg cbc_des3_192_alg = {
- .cra_name = "cbc(des3_ede)",
- .cra_driver_name = "cbc-des3_ede-ubicom32",
- .cra_priority = CRYPTO_UBICOM32_COMPOSITE_PRIORITY,
- .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
- .cra_blocksize = DES3_192_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct ubicom32_des_ctx),
- .cra_alignmask = CRYPTO_UBICOM32_ALIGNMENT - 1,
- .cra_type = &crypto_blkcipher_type,
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(
- cbc_des3_192_alg.cra_list),
- .cra_u = {
- .blkcipher = {
- .min_keysize = DES3_192_KEY_SIZE,
- .max_keysize = DES3_192_KEY_SIZE,
- .ivsize = DES3_192_BLOCK_SIZE,
- .setkey = des3_192_setkey,
- .encrypt = cbc_des3_192_encrypt,
- .decrypt = cbc_des3_192_decrypt,
- }
- }
-};
-
-static int init(void)
-{
- int ret = 0;
-
- hw_crypto_init();
-
- ret = crypto_register_alg(&des_alg);
- if (ret)
- goto des_err;
- ret = crypto_register_alg(&ecb_des_alg);
- if (ret)
- goto ecb_des_err;
- ret = crypto_register_alg(&cbc_des_alg);
- if (ret)
- goto cbc_des_err;
-
- ret = crypto_register_alg(&des3_192_alg);
- if (ret)
- goto des3_192_err;
- ret = crypto_register_alg(&ecb_des3_192_alg);
- if (ret)
- goto ecb_des3_192_err;
- ret = crypto_register_alg(&cbc_des3_192_alg);
- if (ret)
- goto cbc_des3_192_err;
-
-out:
- return ret;
-
-cbc_des3_192_err:
- crypto_unregister_alg(&ecb_des3_192_alg);
-ecb_des3_192_err:
- crypto_unregister_alg(&des3_192_alg);
-des3_192_err:
- crypto_unregister_alg(&cbc_des_alg);
-cbc_des_err:
- crypto_unregister_alg(&ecb_des_alg);
-ecb_des_err:
- crypto_unregister_alg(&des_alg);
-des_err:
- goto out;
-}
-
-static void __exit fini(void)
-{
- crypto_unregister_alg(&cbc_des3_192_alg);
- crypto_unregister_alg(&ecb_des3_192_alg);
- crypto_unregister_alg(&des3_192_alg);
- crypto_unregister_alg(&cbc_des_alg);
- crypto_unregister_alg(&ecb_des_alg);
- crypto_unregister_alg(&des_alg);
-}
-
-module_init(init);
-module_exit(fini);
-
-MODULE_ALIAS("des");
-MODULE_ALIAS("des3_ede");
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("DES & Triple DES EDE Cipher Algorithms");
projects / openwrt / svn-archive / archive.git / blobdiff