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Move RC4 ciphersuites down the list

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Manuel Pégourié-Gonnard 2014-04-29 18:23:07 +02:00 committed by Paul Bakker
parent 8eab8d368b
commit c16f4e1f78
2 changed files with 14 additions and 11 deletions
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1
ChangeLog
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@ -13,6 +13,7 @@ Changes
* Debug module only outputs full lines instead of parts
* Better support for the different Attribute Types from IETF PKIX (RFC 5280)
* AES-NI now compiles with "old" assemblers too
* Ciphersuites based on RC4 now have the lowest priority by default
Bugfix
* Only iterate over actual certificates in ssl_write_certificate_request()

24
library/ssl_ciphersuites.c
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@ -42,11 +42,11 @@
/*
* Ordered from most preferred to least preferred in terms of security.
*
* Current rule (except weak and null which come last):
* Current rule (except rc4, weak and null which come last):
* 1. By key exchange:
* Forward-secure non-PSK > forward-secure PSK > other non-PSK > other PSK
* 2. By key length and cipher:
* AES-256 > Camellia-256 > AES-128 > Camellia-128 > 3DES > RC4
* AES-256 > Camellia-256 > AES-128 > Camellia-128 > 3DES
* 3. By cipher mode when relevant GCM > CBC
* 4. By hash function used
* 5. By key exchange/auth again: EC > non-EC
@ -97,8 +97,6 @@ static const int ciphersuite_preference[] =
TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA,
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,
TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA,
TLS_ECDHE_ECDSA_WITH_RC4_128_SHA,
TLS_ECDHE_RSA_WITH_RC4_128_SHA,
/* The PSK ephemeral suites */
TLS_DHE_PSK_WITH_AES_256_GCM_SHA384,
@ -121,8 +119,6 @@ static const int ciphersuite_preference[] =
TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA,
TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA,
TLS_ECDHE_PSK_WITH_RC4_128_SHA,
TLS_DHE_PSK_WITH_RC4_128_SHA,
/* All AES-256 suites */
TLS_RSA_WITH_AES_256_GCM_SHA384,
@ -166,12 +162,8 @@ static const int ciphersuite_preference[] =
/* All remaining >= 128-bit suites */
TLS_RSA_WITH_3DES_EDE_CBC_SHA,
TLS_RSA_WITH_RC4_128_SHA,
TLS_RSA_WITH_RC4_128_MD5,
TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA,
TLS_ECDH_RSA_WITH_RC4_128_SHA,
TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA,
TLS_ECDH_ECDSA_WITH_RC4_128_SHA,
/* The RSA PSK suites */
TLS_RSA_PSK_WITH_AES_256_GCM_SHA384,
@ -187,7 +179,6 @@ static const int ciphersuite_preference[] =
TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256,
TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA,
TLS_RSA_PSK_WITH_RC4_128_SHA,
/* The PSK suites */
TLS_PSK_WITH_AES_256_GCM_SHA384,
@ -203,6 +194,17 @@ static const int ciphersuite_preference[] =
TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256,
TLS_PSK_WITH_3DES_EDE_CBC_SHA,
/* RC4 suites */
TLS_ECDHE_ECDSA_WITH_RC4_128_SHA,
TLS_ECDHE_RSA_WITH_RC4_128_SHA,
TLS_ECDHE_PSK_WITH_RC4_128_SHA,
TLS_DHE_PSK_WITH_RC4_128_SHA,
TLS_RSA_WITH_RC4_128_SHA,
TLS_RSA_WITH_RC4_128_MD5,
TLS_ECDH_RSA_WITH_RC4_128_SHA,
TLS_ECDH_ECDSA_WITH_RC4_128_SHA,
TLS_RSA_PSK_WITH_RC4_128_SHA,
TLS_PSK_WITH_RC4_128_SHA,
/* Weak suites */