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| author | Bernard Duggan <[email protected]> | 2014-03-31 19:58:35 +1100 |
|---|---|---|
| committer | Bernard Duggan <[email protected]> | 2014-04-29 22:31:49 +1000 |
| commit | 4237524a0d3eb26c244e78539de84c78b828c3c3 (patch) | |
| tree | cce719556ab93d46e7e2689f761844ec8193907e /lib/crypto/src/crypto.erl | |
| 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/src/crypto.erl')
| -rw-r--r-- | lib/crypto/src/crypto.erl | 26 |
1 files changed, 22 insertions, 4 deletions
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(). |