From 216cb8b1aa86d6fd5cf8db38938e70d5986403cd Mon Sep 17 00:00:00 2001 From: Andreas Schneider Date: Sat, 4 Feb 2012 23:37:25 +0100 Subject: crypto: Add evp hashing function. --- src/libcrypto.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'src') diff --git a/src/libcrypto.c b/src/libcrypto.c index 747994e..7977541 100644 --- a/src/libcrypto.c +++ b/src/libcrypto.c @@ -97,6 +97,34 @@ void sha1(unsigned char *digest, int len, unsigned char *hash) { SHA1(digest, len, hash); } +#ifdef HAVE_OPENSSL_ECC +static const EVP_MD *nid_to_evpmd(int nid) +{ + switch (nid) { + case NID_X9_62_prime256v1: + return EVP_sha256(); + case NID_secp384r1: + return EVP_sha384(); + case NID_secp521r1: + return EVP_sha512(); + default: + return NULL; + } + + return NULL; +} + +void evp(int nid, unsigned char *digest, int len, unsigned char *hash, unsigned int *hlen) +{ + const EVP_MD *evp_md = nid_to_evpmd(nid); + EVP_MD_CTX md; + + EVP_DigestInit(&md, evp_md); + EVP_DigestUpdate(&md, digest, len); + EVP_DigestFinal(&md, hash, hlen); +} +#endif + SHA256CTX sha256_init(void){ SHA256CTX c = malloc(sizeof(*c)); if (c == NULL) { -- cgit