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author | Bernard Duggan <bernard@guarana.org> | 2014-03-31 19:58:35 +1100 |
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committer | Bernard Duggan <bernard@guarana.org> | 2014-04-29 22:31:49 +1000 |
commit | 4237524a0d3eb26c244e78539de84c78b828c3c3 (patch) | |
tree | cce719556ab93d46e7e2689f761844ec8193907e /lib/crypto | |
parent | 07b8f441ca711f9812fad9e9115bab3c3aa92f79 (diff) | |
download | otp-4237524a0d3eb26c244e78539de84c78b828c3c3.tar.gz otp-4237524a0d3eb26c244e78539de84c78b828c3c3.tar.bz2 otp-4237524a0d3eb26c244e78539de84c78b828c3c3.zip |
Add AES-CBF8 cypher to crypto module
This adds the aes_cfb8 cypher type (and associated tests and
documentation) to the crypto module.
Diffstat (limited to 'lib/crypto')
-rw-r--r-- | lib/crypto/c_src/crypto.c | 26 | ||||
-rw-r--r-- | lib/crypto/doc/src/crypto.xml | 4 | ||||
-rw-r--r-- | lib/crypto/src/crypto.erl | 26 | ||||
-rw-r--r-- | lib/crypto/test/crypto_SUITE.erl | 24 |
4 files changed, 74 insertions, 6 deletions
diff --git a/lib/crypto/c_src/crypto.c b/lib/crypto/c_src/crypto.c index fca08c4eed..3020cadc56 100644 --- a/lib/crypto/c_src/crypto.c +++ b/lib/crypto/c_src/crypto.c @@ -215,6 +215,7 @@ static ERL_NIF_TERM des_cfb_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM a static ERL_NIF_TERM des_ecb_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); static ERL_NIF_TERM des_ede3_cbc_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); static ERL_NIF_TERM des_ede3_cfb_crypt_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); +static ERL_NIF_TERM aes_cfb_8_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); static ERL_NIF_TERM aes_cfb_128_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); static ERL_NIF_TERM aes_ctr_encrypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); static ERL_NIF_TERM aes_ctr_stream_encrypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]); @@ -344,6 +345,7 @@ static ErlNifFunc nif_funcs[] = { {"des_ecb_crypt", 3, des_ecb_crypt}, {"des_ede3_cbc_crypt", 6, des_ede3_cbc_crypt}, {"des_ede3_cfb_crypt_nif", 6, des_ede3_cfb_crypt_nif}, + {"aes_cfb_8_crypt", 4, aes_cfb_8_crypt}, {"aes_cfb_128_crypt", 4, aes_cfb_128_crypt}, {"aes_ctr_encrypt", 3, aes_ctr_encrypt}, {"aes_ctr_decrypt", 3, aes_ctr_encrypt}, @@ -1600,6 +1602,30 @@ static ERL_NIF_TERM des_ede3_cfb_crypt_nif(ErlNifEnv* env, int argc, const ERL_N #endif } +static ERL_NIF_TERM aes_cfb_8_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Key, IVec, Data, IsEncrypt) */ + ErlNifBinary key, ivec, text; + AES_KEY aes_key; + unsigned char ivec_clone[16]; /* writable copy */ + int new_ivlen = 0; + ERL_NIF_TERM ret; + + if (!enif_inspect_iolist_as_binary(env, argv[0], &key) || key.size != 16 + || !enif_inspect_binary(env, argv[1], &ivec) || ivec.size != 16 + || !enif_inspect_iolist_as_binary(env, argv[2], &text)) { + return enif_make_badarg(env); + } + + memcpy(ivec_clone, ivec.data, 16); + AES_set_encrypt_key(key.data, 128, &aes_key); + AES_cfb8_encrypt((unsigned char *) text.data, + enif_make_new_binary(env, text.size, &ret), + text.size, &aes_key, ivec_clone, &new_ivlen, + (argv[3] == atom_true)); + CONSUME_REDS(env,text); + return ret; +} + static ERL_NIF_TERM aes_cfb_128_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) {/* (Key, IVec, Data, IsEncrypt) */ ErlNifBinary key, ivec, text; diff --git a/lib/crypto/doc/src/crypto.xml b/lib/crypto/doc/src/crypto.xml index e88bf01491..7712173ed8 100644 --- a/lib/crypto/doc/src/crypto.xml +++ b/lib/crypto/doc/src/crypto.xml @@ -128,7 +128,7 @@ <p><code>stream_cipher() = rc4 | aes_ctr </code></p> - <p><code>block_cipher() = aes_cbc128 | aes_cfb128 | aes_ige256 | blowfish_cbc | + <p><code>block_cipher() = aes_cbc128 | aes_cfb8 | aes_cfb128 | aes_ige256 | blowfish_cbc | blowfish_cfb64 | des_cbc | des_cfb | des3_cbc | des3_cbf | des_ede3 | rc2_cbc </code></p> @@ -152,7 +152,7 @@ Note that both md4 and md5 are recommended only for compatibility with existing applications. </p> <p><code> cipher_algorithms() = des_cbc | des_cfb | des3_cbc | des3_cbf | des_ede3 | - blowfish_cbc | blowfish_cfb64 | aes_cbc128 | aes_cfb128| aes_cbc256 | aes_ige256 | rc2_cbc | aes_ctr| rc4 </code> </p> + blowfish_cbc | blowfish_cfb64 | aes_cbc128 | aes_cfb8 | aes_cfb128| aes_cbc256 | aes_ige256 | rc2_cbc | aes_ctr| rc4 </code> </p> <p><code> public_key_algorithms() = rsa |dss | ecdsa | dh | ecdh | ec_gf2m</code> Note that ec_gf2m is not strictly a public key algorithm, but a restriction on what curves are supported with ecdsa and ecdh. diff --git a/lib/crypto/src/crypto.erl b/lib/crypto/src/crypto.erl index 5bf52fc8a4..e1fbbf9ab8 100644 --- a/lib/crypto/src/crypto.erl +++ b/lib/crypto/src/crypto.erl @@ -210,7 +210,7 @@ supports()-> [{hashs, Hashs}, {ciphers, [des_cbc, des_cfb, des3_cbc, des_ede3, blowfish_cbc, - blowfish_cfb64, blowfish_ofb64, blowfish_ecb, aes_cbc128, aes_cfb128, + blowfish_cfb64, blowfish_ofb64, blowfish_ecb, aes_cbc128, aes_cfb8, aes_cfb128, aes_cbc256, rc2_cbc, aes_ctr, rc4] ++ Ciphers}, {public_keys, [rsa, dss, dh, srp] ++ PubKeys} ]. @@ -281,7 +281,7 @@ hmac_final_n(_Context, _HashLen) -> ? nif_stub. %% Ecrypt/decrypt %%% -spec block_encrypt(des_cbc | des_cfb | des3_cbc | des3_cbf | des_ede3 | blowfish_cbc | - blowfish_cfb64 | aes_cbc128 | aes_cfb128 | aes_cbc256 | rc2_cbc, + blowfish_cfb64 | aes_cbc128 | aes_cfb8 | aes_cfb128 | aes_cbc256 | rc2_cbc, Key::iodata(), Ivec::binary(), Data::iodata()) -> binary(). block_encrypt(des_cbc, Key, Ivec, Data) -> @@ -306,6 +306,8 @@ block_encrypt(aes_cbc256, Key, Ivec, Data) -> aes_cbc_256_encrypt(Key, Ivec, Data); block_encrypt(aes_ige256, Key, Ivec, Data) -> aes_ige_256_encrypt(Key, Ivec, Data); +block_encrypt(aes_cfb8, Key, Ivec, Data) -> + aes_cfb_8_encrypt(Key, Ivec, Data); block_encrypt(aes_cfb128, Key, Ivec, Data) -> aes_cfb_128_encrypt(Key, Ivec, Data); block_encrypt(rc2_cbc, Key, Ivec, Data) -> @@ -313,7 +315,7 @@ block_encrypt(rc2_cbc, Key, Ivec, Data) -> -spec block_decrypt(des_cbc | des_cfb | des3_cbc | des3_cbf | des_ede3 | blowfish_cbc | blowfish_cfb64 | blowfish_ofb64 | aes_cbc128 | aes_cbc256 | aes_ige256 | - aes_cfb128 | rc2_cbc, + aes_cfb8 | aes_cfb128 | rc2_cbc, Key::iodata(), Ivec::binary(), Data::iodata()) -> binary(). block_decrypt(des_cbc, Key, Ivec, Data) -> @@ -338,6 +340,8 @@ block_decrypt(aes_cbc256, Key, Ivec, Data) -> aes_cbc_256_decrypt(Key, Ivec, Data); block_decrypt(aes_ige256, Key, Ivec, Data) -> aes_ige_256_decrypt(Key, Ivec, Data); +block_decrypt(aes_cfb8, Key, Ivec, Data) -> + aes_cfb_8_decrypt(Key, Ivec, Data); block_decrypt(aes_cfb128, Key, Ivec, Data) -> aes_cfb_128_decrypt(Key, Ivec, Data); block_decrypt(rc2_cbc, Key, Ivec, Data) -> @@ -1159,7 +1163,21 @@ blowfish_ofb64_encrypt(_Key, _IVec, _Data) -> ?nif_stub. %% -%% AES in cipher feedback mode (CFB) +%% AES in cipher feedback mode (CFB) - 8 bit shift +%% +-spec aes_cfb_8_encrypt(iodata(), binary(), iodata()) -> binary(). +-spec aes_cfb_8_decrypt(iodata(), binary(), iodata()) -> binary(). + +aes_cfb_8_encrypt(Key, IVec, Data) -> + aes_cfb_8_crypt(Key, IVec, Data, true). + +aes_cfb_8_decrypt(Key, IVec, Data) -> + aes_cfb_8_crypt(Key, IVec, Data, false). + +aes_cfb_8_crypt(_Key, _IVec, _Data, _IsEncrypt) -> ?nif_stub. + +%% +%% AES in cipher feedback mode (CFB) - 128 bit shift %% -spec aes_cfb_128_encrypt(iodata(), binary(), iodata()) -> binary(). -spec aes_cfb_128_decrypt(iodata(), binary(), iodata()) -> binary(). diff --git a/lib/crypto/test/crypto_SUITE.erl b/lib/crypto/test/crypto_SUITE.erl index 63552d2e70..479c947029 100644 --- a/lib/crypto/test/crypto_SUITE.erl +++ b/lib/crypto/test/crypto_SUITE.erl @@ -55,6 +55,7 @@ all() -> {group, blowfish_cfb64}, {group, blowfish_ofb64}, {group, aes_cbc128}, + {group, aes_cfb8}, {group, aes_cfb128}, {group, aes_cbc256}, {group, aes_ige256}, @@ -90,6 +91,7 @@ groups() -> {des3_cbf,[], [block]}, {rc2_cbc,[], [block]}, {aes_cbc128,[], [block]}, + {aes_cfb8,[], [block]}, {aes_cfb128,[], [block]}, {aes_cbc256,[], [block]}, {aes_ige256,[], [block]}, @@ -723,6 +725,9 @@ group_config(aes_cbc256, Config) -> group_config(aes_ige256, Config) -> Block = aes_ige256(), [{block, Block} | Config]; +group_config(aes_cfb8, Config) -> + Block = aes_cfb8(), + [{block, Block} | Config]; group_config(aes_cfb128, Config) -> Block = aes_cfb128(), [{block, Block} | Config]; @@ -1164,6 +1169,25 @@ aes_ige256() -> hexstr2bin("f69f2445df4f9b17ad2b417be66c3710")} ]. +aes_cfb8() -> + [{aes_cfb8, + hexstr2bin("2b7e151628aed2a6abf7158809cf4f3c"), + hexstr2bin("000102030405060708090a0b0c0d0e0f"), + hexstr2bin("6bc1bee22e409f96e93d7e117393172a")}, + {aes_cfb8, + hexstr2bin("2b7e151628aed2a6abf7158809cf4f3c"), + hexstr2bin("3B3FD92EB72DAD20333449F8E83CFB4A"), + hexstr2bin("ae2d8a571e03ac9c9eb76fac45af8e51")}, + {aes_cfb8, + hexstr2bin("2b7e151628aed2a6abf7158809cf4f3c"), + hexstr2bin("C8A64537A0B3A93FCDE3CDAD9F1CE58B"), + hexstr2bin("30c81c46a35ce411e5fbc1191a0a52ef")}, + {aes_cfb8, + hexstr2bin("2b7e151628aed2a6abf7158809cf4f3c"), + hexstr2bin("26751F67A3CBB140B1808CF187A4F4DF"), + hexstr2bin("f69f2445df4f9b17ad2b417be66c3710")} + ]. + aes_cfb128() -> [{aes_cfb128, hexstr2bin("2b7e151628aed2a6abf7158809cf4f3c"), |