dropbear: split ECC support to basic and full

[openwrt/staging/chunkeey.git] / package / network / services / dropbear / Config.in

diff --git a/package/network/services/dropbear/Config.in b/package/network/services/dropbear/Config.in
index ca0af9d5e078f3a4d0d9e02e034cd1e03ce40a2e..9106322eeac5816a37e2b6e5dc56dd5e85793553 100644 (file)
--- a/package/network/services/dropbear/Config.in
+++ b/package/network/services/dropbear/Config.in
@@ -8,29 +8,46 @@ config DROPBEAR_CURVE25519
                This enables the following key exchange algorithm:
                  curve25519-sha256@libssh.org
 
-               Increases binary size by about 13 kB uncompressed (MIPS).
+               Increases binary size by about 8 kB uncompressed (MIPS).
 
 config DROPBEAR_ECC
        bool "Elliptic curve cryptography (ECC)"
        default n
        help
-               Enables elliptic curve cryptography (ECC) support in key exchange and public key
-               authentication.
+               Enables basic support for elliptic curve cryptography (ECC)
+               in key exchange and public key authentication.
 
                Key exchange algorithms:
                  ecdh-sha2-nistp256
+
+               Public key algorithms:
+                 ecdsa-sha2-nistp256
+
+               Increases binary size by about 24 kB (MIPS).
+
+               If full ECC support is required, also select DROPBEAR_ECC_FULL.
+
+config DROPBEAR_ECC_FULL
+       bool "Elliptic curve cryptography (ECC), full support"
+       default n
+       depends on DROPBEAR_ECC
+       help
+               Enables full support for elliptic curve cryptography (ECC)
+               in key exchange and public key authentication.
+
+               Key exchange algorithms:
+                 ecdh-sha2-nistp256 (*)
                  ecdh-sha2-nistp384
                  ecdh-sha2-nistp521
 
                Public key algorithms:
-                 ecdsa-sha2-nistp256
+                 ecdsa-sha2-nistp256 (*)
                  ecdsa-sha2-nistp384
                  ecdsa-sha2-nistp521
 
-               Does not generate ECC host keys by default (ECC key exchange will not be used,
-               only ECC public key auth).
+               (*) - basic ECC support; provided by DROPBEAR_ECC.
 
-               Increases binary size by about 23 kB (MIPS).
+               Increases binary size by about 4 kB (MIPS).
 
 config DROPBEAR_ZLIB
        bool "Enable compression"