# include <openssl/x509.h>
# include <openssl/md5.h>
# include <openssl/sha.h>
+# include "internal/cryptlib.h"
# ifndef OPENSSL_NO_RSA
# include <openssl/rsa.h>
# endif
return SHA1_Final(md + MD5_DIGEST_LENGTH, &mctx->sha1);
}
+static int ctrl(EVP_MD_CTX *ctx, int cmd, int mslen, void *ms)
+{
+ unsigned char padtmp[48];
+ unsigned char md5tmp[MD5_DIGEST_LENGTH];
+ unsigned char sha1tmp[SHA_DIGEST_LENGTH];
+ struct md5_sha1_ctx *mctx = ctx->md_data;
+
+ if (cmd != EVP_CTRL_SSL3_MASTER_SECRET)
+ return 0;
+
+ /* SSLv3 client auth handling: see RFC-6101 5.6.8 */
+ if (mslen != 48)
+ return 0;
+
+ /* At this point hash contains all handshake messages, update
+ * with master secret and pad_1.
+ */
+
+ if (update(ctx, ms, mslen) <= 0)
+ return 0;
+
+ /* Set padtmp to pad_1 value */
+ memset(padtmp, 0x36, sizeof(padtmp));
+
+ if (!MD5_Update(&mctx->md5, padtmp, sizeof(padtmp)))
+ return 0;
+
+ if (!MD5_Final(md5tmp, &mctx->md5))
+ return 0;
+
+ if (!SHA1_Update(&mctx->sha1, padtmp, 40))
+ return 0;
+
+ if (!SHA1_Final(sha1tmp, &mctx->sha1))
+ return 0;
+
+ /* Reinitialise context */
+
+ if (!init(ctx))
+ return 0;
+
+ if (update(ctx, ms, mslen) <= 0)
+ return 0;
+
+ /* Set padtmp to pad_2 value */
+ memset(padtmp, 0x5c, sizeof(padtmp));
+
+ if (!MD5_Update(&mctx->md5, padtmp, sizeof(padtmp)))
+ return 0;
+
+ if (!MD5_Update(&mctx->md5, md5tmp, sizeof(md5tmp)))
+ return 0;
+
+ if (!SHA1_Update(&mctx->sha1, padtmp, 40))
+ return 0;
+
+ if (!SHA1_Update(&mctx->sha1, sha1tmp, sizeof(sha1tmp)))
+ return 0;
+
+ /* Now when ctx is finalised it will return the SSL v3 hash value */
+
+ OPENSSL_cleanse(md5tmp, sizeof(md5tmp));
+ OPENSSL_cleanse(sha1tmp, sizeof(sha1tmp));
+
+ return 1;
+
+}
+
static const EVP_MD md5_sha1_md = {
NID_md5_sha1,
NID_md5_sha1,
EVP_PKEY_RSA_method,
MD5_CBLOCK,
sizeof(EVP_MD *) + sizeof(struct md5_sha1_ctx),
+ ctrl
};
const EVP_MD *EVP_md5_sha1(void)