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authorIngela Anderton Andin <[email protected]>2013-05-03 10:20:37 +0200
committerIngela Anderton Andin <[email protected]>2013-05-08 10:39:22 +0200
commitcb1305212e71855890bbfb0a509a007543529d24 (patch)
treef37e9017efdb10d43f9439f490709e460573aef6 /lib/crypto/src/crypto.erl
parenta9add4e3d878bbd339fc2bb36e97d1053318b4e6 (diff)
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ssl & crypto: Generalize the remaining crypto API
Diffstat (limited to 'lib/crypto/src/crypto.erl')
-rw-r--r--lib/crypto/src/crypto.erl42
1 files changed, 23 insertions, 19 deletions
diff --git a/lib/crypto/src/crypto.erl b/lib/crypto/src/crypto.erl
index f3fd119cdd..f4e157198c 100644
--- a/lib/crypto/src/crypto.erl
+++ b/lib/crypto/src/crypto.erl
@@ -26,11 +26,11 @@
-export([sign/4, verify/5]).
-export([generate_key/2, generate_key/3, compute_key/4]).
-export([hmac/3, hmac/4, hmac_init/2, hmac_update/2, hmac_final/1, hmac_final_n/2]).
--export([exor/2, strong_rand_bytes/1, mod_exp_prime/3]).
+-export([exor/2, strong_rand_bytes/1, mod_pow/3]).
-export([rand_bytes/1, rand_bytes/3, rand_uniform/2]).
-export([block_encrypt/3, block_decrypt/3, block_encrypt/4, block_decrypt/4]).
-export([next_iv/2, next_iv/3]).
--export([stream_init/2, stream_init/3, stream_encrypt/3, stream_decrypt/3]).
+-export([stream_init/2, stream_init/3, stream_encrypt/2, stream_decrypt/2]).
-export([public_encrypt/4, private_decrypt/4]).
-export([private_encrypt/4, public_decrypt/4]).
@@ -193,7 +193,7 @@
rand_bytes,
strong_rand_bytes,
rand_uniform,
- mod_exp_prime,
+ mod_pow,
exor,
%% deprecated
mod_exp,strong_rand_mpint,erlint, mpint,
@@ -685,7 +685,7 @@ sha512_mac_nif(_Key,_Data,_MacSz) -> ?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 | rc2_cbc,
+ blowfish_cfb64 | aes_cbc128 | aes_cfb128 | aes_cbc256 | rc2_cbc,
Key::iodata(), Ivec::binary(), Data::iodata()) -> binary().
block_encrypt(des_cbc, Key, Ivec, Data) ->
@@ -714,7 +714,7 @@ block_encrypt(rc2_cbc, Key, Ivec, Data) ->
rc2_cbc_encrypt(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_cfb128 | rc2_cbc,
+ blowfish_cfb64 | blowfish_ofb64 | aes_cbc128 | aes_cbc256 | aes_cfb128 | rc2_cbc,
Key::iodata(), Ivec::binary(), Data::iodata()) -> binary().
block_decrypt(des_cbc, Key, Ivec, Data) ->
@@ -769,17 +769,21 @@ next_iv(des_cbf, Ivec, Data) ->
des_cfb_ivec(Ivec, Data).
stream_init(aes_ctr, Key, Ivec) ->
- aes_ctr_stream_init(Key, Ivec).
+ {aes_ctr, aes_ctr_stream_init(Key, Ivec)}.
stream_init(rc4, Key) ->
- rc4_set_key(Key).
-stream_encrypt(aes_ctr, State, Data) ->
- aes_ctr_stream_encrypt(State, Data);
-stream_encrypt(rc4, State, Data) ->
- rc4_encrypt_with_state(State, Data).
-stream_decrypt(aes_ctr, State, Data) ->
- aes_ctr_stream_decrypt(State, Data);
-stream_decrypt(rc4, State, Data) ->
- rc4_encrypt_with_state (State, Data).
+ {rc4, rc4_set_key(Key)}.
+stream_encrypt({aes_ctr, State}, Data) ->
+ {State, Cipher} = aes_ctr_stream_encrypt(State, Data),
+ {{aes_ctr, State}, Cipher};
+stream_encrypt({rc4, State0}, Data) ->
+ {State, Cipher} = rc4_encrypt_with_state(State0, Data),
+ {{rc4, State}, Cipher}.
+stream_decrypt({aes_ctr, State0}, Data) ->
+ {State, Text} = aes_ctr_stream_decrypt(State0, Data),
+ {{aes_ctr, State}, Text};
+stream_decrypt({rc4, State0}, Data) ->
+ {State, Text} = rc4_encrypt_with_state (State0, Data),
+ {{rc4, State}, Text}.
%%
%% CRYPTO FUNCTIONS
@@ -1018,9 +1022,9 @@ mod_exp(Base, Exponent, Modulo)
mod_exp(Base, Exponent, Modulo) ->
mod_exp_nif(mpint_to_bin(Base),mpint_to_bin(Exponent),mpint_to_bin(Modulo), 4).
--spec mod_exp_prime(binary(), binary(), binary()) -> binary() | error.
-mod_exp_prime(Base, Exponent, Prime) ->
- case mod_exp_nif(Base, Exponent, Prime, 0) of
+-spec mod_pow(binary()|integer(), binary()|integer(), binary()|integer()) -> binary() | error.
+mod_pow(Base, Exponent, Prime) ->
+ case mod_exp_nif(ensure_int_as_bin(Base), ensure_int_as_bin(Exponent), ensure_int_as_bin(Prime), 0) of
<<0>> -> error;
R -> R
end.
@@ -1500,7 +1504,7 @@ term_to_ec_key_nif(_Curve, _PrivKey, _PubKey) -> ?nif_stub.
%%
user_srp_gen_key(Private, Generator, Prime) ->
- case mod_exp_prime(Generator, Private, Prime) of
+ case mod_pow(Generator, Private, Prime) of
error ->
error;
Public ->