diff options
Diffstat (limited to 'lib/crypto/src/crypto.erl')
| -rw-r--r-- | lib/crypto/src/crypto.erl | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/lib/crypto/src/crypto.erl b/lib/crypto/src/crypto.erl index 99b683fce2..cc7b3acc9c 100644 --- a/lib/crypto/src/crypto.erl +++ b/lib/crypto/src/crypto.erl @@ -46,7 +46,7 @@ -export([rsa_private_encrypt/3, rsa_public_decrypt/3]). -export([dh_generate_key/1, dh_generate_key/2, dh_compute_key/3]). -export([rand_bytes/1, rand_bytes/3, rand_uniform/2]). --export([strong_rand_bytes/1, strong_rand_uniform/3]). +-export([strong_rand_bytes/1, strong_rand_mpint/3]). -export([mod_exp/3, mpint/1, erlint/1]). %% -export([idea_cbc_encrypt/3, idea_cbc_decrypt/3]). -export([aes_cbc_128_encrypt/3, aes_cbc_128_decrypt/3]). @@ -70,7 +70,7 @@ aes_cfb_128_encrypt, aes_cfb_128_decrypt, rand_bytes, strong_rand_bytes, - strong_rand_uniform, + strong_rand_mpint, rand_uniform, mod_exp, dss_verify,dss_sign, @@ -367,11 +367,12 @@ aes_cfb_128_crypt(_Key, _IVec, _Data, _IsEncrypt) -> ?nif_stub. -spec strong_rand_bytes(non_neg_integer()) -> binary(). -spec rand_uniform(crypto_integer(), crypto_integer()) -> crypto_integer(). --spec strong_rand_uniform(Bits::non_neg_integer(), - Top::-1..1, - Bottom::0..1) -> binary(). +-spec strong_rand_mpint(Bits::non_neg_integer(), + Top::-1..1, + Bottom::0..1) -> binary(). rand_bytes(_Bytes) -> ?nif_stub. + strong_rand_bytes(Bytes) -> case strong_rand_bytes_nif(Bytes) of false -> erlang:error(low_entropy); @@ -380,7 +381,14 @@ strong_rand_bytes(Bytes) -> strong_rand_bytes_nif(_Bytes) -> ?nif_stub. rand_bytes(_Bytes, _Topmask, _Bottommask) -> ?nif_stub. -strong_rand_uniform(_Bytes, _Topmask, _Bottommask) -> ?nif_stub. + +strong_rand_mpint(Bits, Top, Bottom) -> + case strong_rand_mpint_nif(Bits,Top,Bottom) of + false -> erlang:error(low_entropy); + Bin -> Bin + end. +strong_rand_mpint_nif(_Bits, _Top, _Bottom) -> ?nif_stub. + rand_uniform(From,To) when is_binary(From), is_binary(To) -> case rand_uniform_nif(From,To) of |