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Disable by default 3des, cbc, hmac-sha1-96, x11 forwarding

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This commit is contained in:
Matt Johnston 2020-06-11 00:09:15 +08:00
parent 6145289e0d
commit a27e8b053e
1 changed files with 13 additions and 15 deletions
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28
default_options.h
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@ -48,7 +48,7 @@ IMPORTANT: Some options will require "make clean" after changes */
#define DROPBEAR_SMALL_CODE 1
/* Enable X11 Forwarding - server only */
#define DROPBEAR_X11FWD 1
#define DROPBEAR_X11FWD 0
/* Enable TCP Fowarding */
/* 'Local' is "-L" style (client listening port forwarded via server)
@ -83,20 +83,24 @@ IMPORTANT: Some options will require "make clean" after changes */
* Including both AES keysize variants (128 and 256) will result in
* a minimal size increase */
#define DROPBEAR_AES128 1
#define DROPBEAR_3DES 1
#define DROPBEAR_AES256 1
#define DROPBEAR_3DES 0
#define DROPBEAR_TWOFISH256 0
#define DROPBEAR_TWOFISH128 0
/* Enable CBC mode for ciphers. This has security issues though
* is the most compatible with older SSH implementations */
#define DROPBEAR_ENABLE_CBC_MODE 1
/* Enable Chacha20-Poly1305 authenticated encryption mode. This is
* generally faster than AES256 on CPU w/o dedicated AES instructions,
* having the same key size. Recommended.
* Compiling in will add ~5,5kB to binary size on x86-64 */
#define DROPBEAR_CHACHA20POLY1305 1
/* Enable "Counter Mode" for ciphers. This is more secure than
* CBC mode against certain attacks. It is recommended for security
* and forwards compatibility */
/* Enable "Counter Mode" for ciphers. Recommended. */
#define DROPBEAR_ENABLE_CTR_MODE 1
/* Enable CBC mode for ciphers. This has security issues though
may be required for compatibility with old implementations */
#define DROPBEAR_ENABLE_CBC_MODE 0
/* Enable "Galois/Counter Mode" for ciphers. This authenticated
* encryption mode is combination of CTR mode and GHASH. Recommended
* for security and forwards compatibility, but slower than CTR on
@ -104,17 +108,11 @@ IMPORTANT: Some options will require "make clean" after changes */
* Compiling in will add ~6kB to binary size on x86-64 */
#define DROPBEAR_ENABLE_GCM_MODE 0
/* Enable Chacha20-Poly1305 authenticated encryption mode. This is
* generally faster than AES256 on CPU w/o dedicated AES instructions,
* having the same key size.
* Compiling in will add ~5,5kB to binary size on x86-64 */
#define DROPBEAR_CHACHA20POLY1305 1
/* Message integrity. sha2-256 is recommended as a default,
sha1 for compatibility */
#define DROPBEAR_SHA1_HMAC 1
#define DROPBEAR_SHA1_96_HMAC 1
#define DROPBEAR_SHA2_256_HMAC 1
#define DROPBEAR_SHA1_96_HMAC 0
/* Hostkey/public key algorithms - at least one required, these are used
* for hostkey as well as for verifying signatures with pubkey auth.