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Add SHA2 algorithms for HMAC

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BUG: https://red.libssh.org/issues/91

Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
This commit is contained in:
Dirkjan Bussink
2014-04-20 09:53:47 +00:00
committed by Andreas Schneider
parent d6e6a453fc
commit 4a08902664
5 changed files with 178 additions and 4 deletions
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74
src/libgcrypt.c
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@@ -69,10 +69,69 @@ void sha1(unsigned char *digest, int len, unsigned char *hash) {
gcry_md_hash_buffer(GCRY_MD_SHA1, hash, digest, len);
}
SHA256CTX sha256_init(void) {
SHA256CTX ctx = NULL;
gcry_md_open(&ctx, GCRY_MD_SHA256, 0);
return ctx;
}
void sha256_update(SHACTX c, const void *data, unsigned long len) {
gcry_md_write(c, data, len);
}
void sha256_final(unsigned char *md, SHACTX c) {
gcry_md_final(c);
memcpy(md, gcry_md_read(c, 0), SHA256_DIGEST_LEN);
gcry_md_close(c);
}
void sha256(unsigned char *digest, int len, unsigned char *hash){
gcry_md_hash_buffer(GCRY_MD_SHA256, hash, digest, len);
}
SHA384CTX sha384_init(void) {
SHA384CTX ctx = NULL;
gcry_md_open(&ctx, GCRY_MD_SHA384, 0);
return ctx;
}
void sha384_update(SHACTX c, const void *data, unsigned long len) {
gcry_md_write(c, data, len);
}
void sha384_final(unsigned char *md, SHACTX c) {
gcry_md_final(c);
memcpy(md, gcry_md_read(c, 0), SHA384_DIGEST_LEN);
gcry_md_close(c);
}
void sha384(unsigned char *digest, int len, unsigned char *hash) {
gcry_md_hash_buffer(GCRY_MD_SHA384, hash, digest, len);
}
SHA512CTX sha512_init(void) {
SHA512CTX ctx = NULL;
gcry_md_open(&ctx, GCRY_MD_SHA512, 0);
return ctx;
}
void sha512_update(SHACTX c, const void *data, unsigned long len) {
gcry_md_write(c, data, len);
}
void sha512_final(unsigned char *md, SHACTX c) {
gcry_md_final(c);
memcpy(md, gcry_md_read(c, 0), SHA512_DIGEST_LEN);
gcry_md_close(c);
}
void sha512(unsigned char *digest, int len, unsigned char *hash) {
gcry_md_hash_buffer(GCRY_MD_SHA512, hash, digest, len);
}
MD5CTX md5_init(void) {
MD5CTX c = NULL;
gcry_md_open(&c, GCRY_MD_MD5, 0);
@@ -124,13 +183,13 @@ void ssh_mac_final(unsigned char *md, ssh_mac_ctx ctx) {
len=SHA_DIGEST_LEN;
break;
case SSH_MAC_SHA256:
len=SHA256_DIGEST_LENGTH;
len=SHA256_DIGEST_LEN;
break;
case SSH_MAC_SHA384:
len=SHA384_DIGEST_LENGTH;
len=SHA384_DIGEST_LEN;
break;
case SSH_MAC_SHA512:
len=SHA512_DIGEST_LENGTH;
len=SHA512_DIGEST_LEN;
break;
}
gcry_md_final(ctx->ctx);
@@ -146,6 +205,15 @@ HMACCTX hmac_init(const void *key, int len, enum ssh_hmac_e type) {
case SSH_HMAC_SHA1:
gcry_md_open(&c, GCRY_MD_SHA1, GCRY_MD_FLAG_HMAC);
break;
case SSH_HMAC_SHA256:
gcry_md_open(&c, GCRY_MD_SHA256, GCRY_MD_FLAG_HMAC);
break;
case SSH_HMAC_SHA384:
gcry_md_open(&c, GCRY_MD_SHA384, GCRY_MD_FLAG_HMAC);
break;
case SSH_HMAC_SHA512:
gcry_md_open(&c, GCRY_MD_SHA512, GCRY_MD_FLAG_HMAC);
break;
case SSH_HMAC_MD5:
gcry_md_open(&c, GCRY_MD_MD5, GCRY_MD_FLAG_HMAC);
break;