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author | Andreas Schultz <aschultz@tpip.net> | 2012-04-08 02:39:18 +0200 |
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committer | Ingela Anderton Andin <ingela@erlang.org> | 2012-08-22 14:00:44 +0200 |
commit | d848984efd05314abf2de8da6ddd4ee651f0da35 (patch) | |
tree | c56ce48d75c8c8ba74c99af46a59182575202d88 /lib/ssl/src/ssl_cipher.erl | |
parent | 7c9639c785bb6b3047788b6b27ddbafb8f5b0b08 (diff) | |
download | otp-d848984efd05314abf2de8da6ddd4ee651f0da35.tar.gz otp-d848984efd05314abf2de8da6ddd4ee651f0da35.tar.bz2 otp-d848984efd05314abf2de8da6ddd4ee651f0da35.zip |
ssl: make PRF function selectable
TLS 1.2 allows to negotiate the used PRF,
additional the default PRF uses a different
hash. This change make the PRF selectable
and hardwires the PRF for TLS < 1.2
Diffstat (limited to 'lib/ssl/src/ssl_cipher.erl')
-rw-r--r-- | lib/ssl/src/ssl_cipher.erl | 78 |
1 files changed, 50 insertions, 28 deletions
diff --git a/lib/ssl/src/ssl_cipher.erl b/lib/ssl/src/ssl_cipher.erl index 1b67260388..8fc3929b97 100644 --- a/lib/ssl/src/ssl_cipher.erl +++ b/lib/ssl/src/ssl_cipher.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2007-2011. All Rights Reserved. +%% Copyright Ericsson AB 2007-2012. All Rights Reserved. %% %% The contents of this file are subject to the Erlang Public License, %% Version 1.1, (the "License"); you may not use this file except in @@ -46,7 +46,7 @@ %% cipher values has been updated according to <CipherSuite> %%------------------------------------------------------------------- security_parameters(CipherSuite, SecParams) -> - { _, Cipher, Hash} = suite_definition(CipherSuite), + { _, Cipher, Hash, PrfHash} = suite_definition(CipherSuite), SecParams#security_parameters{ cipher_suite = CipherSuite, bulk_cipher_algorithm = bulk_cipher_algorithm(Cipher), @@ -56,6 +56,7 @@ security_parameters(CipherSuite, SecParams) -> key_material_length = key_material(Cipher), iv_size = iv_size(Cipher), mac_algorithm = mac_algorithm(Hash), + prf_algorithm = prf_algorithm(PrfHash), hash_size = hash_size(Hash)}. %%-------------------------------------------------------------------- @@ -218,7 +219,7 @@ anonymous_suites() -> ?TLS_DH_anon_WITH_AES_256_CBC_SHA]. %%-------------------------------------------------------------------- --spec suite_definition(cipher_suite()) -> erl_cipher_suite(). +-spec suite_definition(cipher_suite()) -> int_cipher_suite(). %% %% Description: Return erlang cipher suite definition. %% Note: Currently not supported suites are commented away. @@ -226,56 +227,56 @@ anonymous_suites() -> %%------------------------------------------------------------------- %% TLS v1.1 suites suite_definition(?TLS_NULL_WITH_NULL_NULL) -> - {null, null, null}; + {null, null, null, null}; %% suite_definition(?TLS_RSA_WITH_NULL_MD5) -> -%% {rsa, null, md5}; +%% {rsa, null, md5, default_prf}; %% suite_definition(?TLS_RSA_WITH_NULL_SHA) -> -%% {rsa, null, sha}; +%% {rsa, null, sha, default_prf}; suite_definition(?TLS_RSA_WITH_RC4_128_MD5) -> - {rsa, rc4_128, md5}; + {rsa, rc4_128, md5, default_prf}; suite_definition(?TLS_RSA_WITH_RC4_128_SHA) -> - {rsa, rc4_128, sha}; + {rsa, rc4_128, sha, default_prf}; %% suite_definition(?TLS_RSA_WITH_IDEA_CBC_SHA) -> -%% {rsa, idea_cbc, sha}; +%% {rsa, idea_cbc, sha, default_prf}; suite_definition(?TLS_RSA_WITH_DES_CBC_SHA) -> - {rsa, des_cbc, sha}; + {rsa, des_cbc, sha, default_prf}; suite_definition(?TLS_RSA_WITH_3DES_EDE_CBC_SHA) -> - {rsa, '3des_ede_cbc', sha}; + {rsa, '3des_ede_cbc', sha, default_prf}; suite_definition(?TLS_DHE_DSS_WITH_DES_CBC_SHA) -> - {dhe_dss, des_cbc, sha}; + {dhe_dss, des_cbc, sha, default_prf}; suite_definition(?TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA) -> - {dhe_dss, '3des_ede_cbc', sha}; + {dhe_dss, '3des_ede_cbc', sha, default_prf}; suite_definition(?TLS_DHE_RSA_WITH_DES_CBC_SHA) -> - {dhe_rsa, des_cbc, sha}; + {dhe_rsa, des_cbc, sha, default_prf}; suite_definition(?TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA) -> - {dhe_rsa, '3des_ede_cbc', sha}; + {dhe_rsa, '3des_ede_cbc', sha, default_prf}; %%% TSL V1.1 AES suites suite_definition(?TLS_RSA_WITH_AES_128_CBC_SHA) -> - {rsa, aes_128_cbc, sha}; + {rsa, aes_128_cbc, sha, default_prf}; suite_definition(?TLS_DHE_DSS_WITH_AES_128_CBC_SHA) -> - {dhe_dss, aes_128_cbc, sha}; + {dhe_dss, aes_128_cbc, sha, default_prf}; suite_definition(?TLS_DHE_RSA_WITH_AES_128_CBC_SHA) -> - {dhe_rsa, aes_128_cbc, sha}; + {dhe_rsa, aes_128_cbc, sha, default_prf}; suite_definition(?TLS_RSA_WITH_AES_256_CBC_SHA) -> - {rsa, aes_256_cbc, sha}; + {rsa, aes_256_cbc, sha, default_prf}; suite_definition(?TLS_DHE_DSS_WITH_AES_256_CBC_SHA) -> - {dhe_dss, aes_256_cbc, sha}; + {dhe_dss, aes_256_cbc, sha, default_prf}; suite_definition(?TLS_DHE_RSA_WITH_AES_256_CBC_SHA) -> - {dhe_rsa, aes_256_cbc, sha}; + {dhe_rsa, aes_256_cbc, sha, default_prf}; %%% DH-ANON deprecated by TLS spec and not available %%% by default, but good for testing purposes. suite_definition(?TLS_DH_anon_WITH_RC4_128_MD5) -> - {dh_anon, rc4_128, md5}; + {dh_anon, rc4_128, md5, default_prf}; suite_definition(?TLS_DH_anon_WITH_DES_CBC_SHA) -> - {dh_anon, des_cbc, sha}; + {dh_anon, des_cbc, sha, default_prf}; suite_definition(?TLS_DH_anon_WITH_3DES_EDE_CBC_SHA) -> - {dh_anon, '3des_ede_cbc', sha}; + {dh_anon, '3des_ede_cbc', sha, default_prf}; suite_definition(?TLS_DH_anon_WITH_AES_128_CBC_SHA) -> - {dh_anon, aes_128_cbc, sha}; + {dh_anon, aes_128_cbc, sha, default_prf}; suite_definition(?TLS_DH_anon_WITH_AES_256_CBC_SHA) -> - {dh_anon, aes_256_cbc, sha}. + {dh_anon, aes_256_cbc, sha, default_prf}. %%-------------------------------------------------------------------- -spec suite(erl_cipher_suite()) -> cipher_suite(). @@ -510,14 +511,35 @@ mac_algorithm(null) -> mac_algorithm(md5) -> ?MD5; mac_algorithm(sha) -> - ?SHA. + ?SHA; +mac_algorithm(sha256) -> + ?SHA256; +mac_algorithm(sha384) -> + ?SHA384. + +prf_algorithm(default_prf) -> + ?SHA256; +prf_algorithm(null) -> + ?NULL; +prf_algorithm(md5) -> + ?MD5; +prf_algorithm(sha) -> + ?SHA; +prf_algorithm(sha256) -> + ?SHA256; +prf_algorithm(sha384) -> + ?SHA384. hash_size(null) -> 0; hash_size(md5) -> 16; hash_size(sha) -> - 20. + 20; +hash_size(sha256) -> + 32; +hash_size(sha384) -> + 48. %% RFC 5246: 6.2.3.2. CBC Block Cipher %% |