return -1;
}
-int MGF1(unsigned char *mask, long len,
- const unsigned char *seed, long seedlen)
+int PKCS1_MGF1(unsigned char *mask, long len,
+ const unsigned char *seed, long seedlen, const EVP_MD *dgst)
{
long i, outlen = 0;
unsigned char cnt[4];
EVP_MD_CTX c;
- unsigned char md[SHA_DIGEST_LENGTH];
+ unsigned char md[EVP_MAX_MD_SIZE];
+ int mdlen;
EVP_MD_CTX_init(&c);
+ mdlen = EVP_MD_size(dgst);
for (i = 0; outlen < len; i++)
{
cnt[0] = (unsigned char)((i >> 24) & 255);
cnt[1] = (unsigned char)((i >> 16) & 255);
cnt[2] = (unsigned char)((i >> 8)) & 255;
cnt[3] = (unsigned char)(i & 255);
- EVP_DigestInit_ex(&c,EVP_sha1(), NULL);
+ EVP_DigestInit_ex(&c,dgst, NULL);
EVP_DigestUpdate(&c, seed, seedlen);
EVP_DigestUpdate(&c, cnt, 4);
- if (outlen + SHA_DIGEST_LENGTH <= len)
+ if (outlen + mdlen <= len)
{
EVP_DigestFinal_ex(&c, mask + outlen, NULL);
- outlen += SHA_DIGEST_LENGTH;
+ outlen += mdlen;
}
else
{
EVP_MD_CTX_cleanup(&c);
return 0;
}
+
+int MGF1(unsigned char *mask, long len, const unsigned char *seed, long seedlen)
+ {
+ return PKCS1_MGF1(mask, len, seed, seedlen, EVP_sha1());
+ }
#endif