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| author | Dr. Stephen Henson <steve@openssl.org> | 2011-02-14 16:44:29 +0000 |
|---|---|---|
| committer | Dr. Stephen Henson <steve@openssl.org> | 2011-02-14 16:44:29 +0000 |
| commit | 133291f8e73892dfd00923d278be74229ac07401 (patch) | |
| tree | aa72a8232c79ef701c4cc93894a489f1abb7b509 /crypto/bn/bn_nist.c | |
| parent | e990b4f838eaa649a1849d25db5be2236632fe34 (diff) | |
| download | openssl-133291f8e73892dfd00923d278be74229ac07401.zip openssl-133291f8e73892dfd00923d278be74229ac07401.tar.gz openssl-133291f8e73892dfd00923d278be74229ac07401.tar.bz2 | |
New function BN_nist_mod_func which returns an appropriate function
if the passed prime is a NIST prime.
Diffstat (limited to 'crypto/bn/bn_nist.c')
| -rw-r--r-- | crypto/bn/bn_nist.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/crypto/bn/bn_nist.c b/crypto/bn/bn_nist.c index 2ca5b01..97f980a 100644 --- a/crypto/bn/bn_nist.c +++ b/crypto/bn/bn_nist.c @@ -834,3 +834,18 @@ int BN_nist_mod_521(BIGNUM *r, const BIGNUM *a, const BIGNUM *field, return 1; } + +int (*BN_nist_mod_func(const BIGNUM *p))(BIGNUM *r, const BIGNUM *a, const BIGNUM *field, BN_CTX *ctx) + { + if (BN_ucmp(&_bignum_nist_p_192, p) == 0) + return BN_nist_mod_192; + if (BN_ucmp(&_bignum_nist_p_224, p) == 0) + return BN_nist_mod_224; + if (BN_ucmp(&_bignum_nist_p_256, p) == 0) + return BN_nist_mod_256; + if (BN_ucmp(&_bignum_nist_p_384, p) == 0) + return BN_nist_mod_384; + if (BN_ucmp(&_bignum_nist_p_521, p) == 0) + return BN_nist_mod_521; + return 0; + } |