diff options
Diffstat (limited to 'lib/ssl/src/ssl_tls1.erl')
-rw-r--r-- | lib/ssl/src/ssl_tls1.erl | 92 |
1 files changed, 43 insertions, 49 deletions
diff --git a/lib/ssl/src/ssl_tls1.erl b/lib/ssl/src/ssl_tls1.erl index ce9a135168..d1bc0730ba 100644 --- a/lib/ssl/src/ssl_tls1.erl +++ b/lib/ssl/src/ssl_tls1.erl @@ -30,12 +30,14 @@ -include("ssl_debug.hrl"). -export([master_secret/3, finished/3, certificate_verify/2, mac_hash/7, - setup_keys/5, setup_keys/6, suites/0]). + setup_keys/6, suites/0]). %%==================================================================== %% Internal application API %%==================================================================== +-spec master_secret(binary(), binary(), binary()) -> binary(). + master_secret(PreMasterSecret, ClientRandom, ServerRandom) -> %% RFC 2246 & 4346 - 8.1 %% master_secret = PRF(pre_master_secret, %% "master secret", ClientHello.random + @@ -43,6 +45,8 @@ master_secret(PreMasterSecret, ClientRandom, ServerRandom) -> prf(PreMasterSecret, <<"master secret">>, [ClientRandom, ServerRandom], 48). +-spec finished(client | server, binary(), {binary(), binary()}) -> binary(). + finished(Role, MasterSecret, {MD5Hash, SHAHash}) -> %% RFC 2246 & 4346 - 7.4.9. Finished %% struct { @@ -56,18 +60,21 @@ finished(Role, MasterSecret, {MD5Hash, SHAHash}) -> SHA = hash_final(?SHA, SHAHash), prf(MasterSecret, finished_label(Role), [MD5, SHA], 12). +-spec certificate_verify(key_algo(), {binary(), binary()}) -> binary(). certificate_verify(Algorithm, {MD5Hash, SHAHash}) when Algorithm == rsa; - Algorithm == dh_rsa; Algorithm == dhe_rsa -> MD5 = hash_final(?MD5, MD5Hash), SHA = hash_final(?SHA, SHAHash), <<MD5/binary, SHA/binary>>; -certificate_verify(Algorithm, {_, SHAHash}) when Algorithm == dh_dss; - Algorithm == dhe_dss -> +certificate_verify(dhe_dss, {_, SHAHash}) -> hash_final(?SHA, SHAHash). - + +-spec setup_keys(binary(), binary(), binary(), integer(), + integer(), integer()) -> {binary(), binary(), binary(), + binary(), binary(), binary()}. + setup_keys(MasterSecret, ServerRandom, ClientRandom, HashSize, KeyMatLen, IVSize) -> %% RFC 2246 - 6.3. Key calculation @@ -92,26 +99,30 @@ setup_keys(MasterSecret, ServerRandom, ClientRandom, HashSize, {ClientWriteMacSecret, ServerWriteMacSecret, ClientWriteKey, ServerWriteKey, ClientIV, ServerIV}. -setup_keys(MasterSecret, ServerRandom, ClientRandom, HashSize, KeyMatLen) -> - %% RFC 4346 - 6.3. Key calculation - %% key_block = PRF(SecurityParameters.master_secret, - %% "key expansion", - %% SecurityParameters.server_random + - %% SecurityParameters.client_random); - %% Then the key_block is partitioned as follows: - %% client_write_MAC_secret[SecurityParameters.hash_size] - %% server_write_MAC_secret[SecurityParameters.hash_size] - %% client_write_key[SecurityParameters.key_material_length] - %% server_write_key[SecurityParameters.key_material_length] - WantedLength = 2 * (HashSize + KeyMatLen), - KeyBlock = prf(MasterSecret, "key expansion", - [ServerRandom, ClientRandom], WantedLength), - <<ClientWriteMacSecret:HashSize/binary, - ServerWriteMacSecret:HashSize/binary, - ClientWriteKey:KeyMatLen/binary, ServerWriteKey:KeyMatLen/binary>> - = KeyBlock, - {ClientWriteMacSecret, ServerWriteMacSecret, ClientWriteKey, - ServerWriteKey, undefined, undefined}. +%% TLS v1.1 uncomment when supported. +%% setup_keys(MasterSecret, ServerRandom, ClientRandom, HashSize, KeyMatLen) -> +%% %% RFC 4346 - 6.3. Key calculation +%% %% key_block = PRF(SecurityParameters.master_secret, +%% %% "key expansion", +%% %% SecurityParameters.server_random + +%% %% SecurityParameters.client_random); +%% %% Then the key_block is partitioned as follows: +%% %% client_write_MAC_secret[SecurityParameters.hash_size] +%% %% server_write_MAC_secret[SecurityParameters.hash_size] +%% %% client_write_key[SecurityParameters.key_material_length] +%% %% server_write_key[SecurityParameters.key_material_length] +%% WantedLength = 2 * (HashSize + KeyMatLen), +%% KeyBlock = prf(MasterSecret, "key expansion", +%% [ServerRandom, ClientRandom], WantedLength), +%% <<ClientWriteMacSecret:HashSize/binary, +%% ServerWriteMacSecret:HashSize/binary, +%% ClientWriteKey:KeyMatLen/binary, ServerWriteKey:KeyMatLen/binary>> +%% = KeyBlock, +%% {ClientWriteMacSecret, ServerWriteMacSecret, ClientWriteKey, +%% ServerWriteKey, undefined, undefined}. + +-spec mac_hash(integer(), binary(), integer(), integer(), tls_version(), + integer(), binary()) -> binary(). mac_hash(Method, Mac_write_secret, Seq_num, Type, {Major, Minor}, Length, Fragment) -> @@ -133,37 +144,24 @@ mac_hash(Method, Mac_write_secret, Seq_num, Type, {Major, Minor}, ?DBG_HEX(Mac), Mac. +-spec suites() -> [cipher_suite()]. + suites() -> [ - %% TODO: uncomment when supported ?TLS_DHE_RSA_WITH_AES_256_CBC_SHA, - %%?TLS_DHE_DSS_WITH_AES_256_CBC_SHA, + ?TLS_DHE_DSS_WITH_AES_256_CBC_SHA, ?TLS_RSA_WITH_AES_256_CBC_SHA, ?TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA, - %% ?TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA, + ?TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA, ?TLS_RSA_WITH_3DES_EDE_CBC_SHA, ?TLS_DHE_RSA_WITH_AES_128_CBC_SHA, - %% ?TLS_DHE_DSS_WITH_AES_128_CBC_SHA, + ?TLS_DHE_DSS_WITH_AES_128_CBC_SHA, ?TLS_RSA_WITH_AES_128_CBC_SHA, - %%?TLS_DHE_DSS_WITH_RC4_128_SHA, TODO: Support this? - %% ?TLS_RSA_WITH_IDEA_CBC_SHA, + %%?TLS_RSA_WITH_IDEA_CBC_SHA, ?TLS_RSA_WITH_RC4_128_SHA, ?TLS_RSA_WITH_RC4_128_MD5, - %%?TLS_RSA_EXPORT1024_WITH_RC4_56_MD5, - %%?TLS_RSA_EXPORT1024_WITH_RC2_CBC_56_MD5, - %%?TLS_RSA_EXPORT1024_WITH_DES_CBC_SHA, - %%?TLS_DHE_DSS_EXPORT1024_WITH_DES_CBC_SHA, - %%?TLS_RSA_EXPORT1024_WITH_RC4_56_SHA, - %%?TLS_DHE_DSS_EXPORT1024_WITH_RC4_56_SHA, - %%?TLS_DHE_DSS_WITH_RC4_128_SHA, - %%?TLS_DHE_RSA_WITH_DES_CBC_SHA, - %% EDH-DSS-DES-CBC-SHA TODO: ?? + ?TLS_DHE_RSA_WITH_DES_CBC_SHA, ?TLS_RSA_WITH_DES_CBC_SHA - %% ?TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA, - %% ?TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA, - %%?TLS_RSA_EXPORT_WITH_DES40_CBC_SHA, - %%?TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5, - %%?TLS_RSA_EXPORT_WITH_RC4_40_MD5 ]. %%-------------------------------------------------------------------- @@ -245,7 +243,3 @@ hash_final(?MD5, Conntext) -> crypto:md5_final(Conntext); hash_final(?SHA, Conntext) -> crypto:sha_final(Conntext). - - - - |