/* Retrieve handshake hashes */
int ssl_handshake_hash(SSL *s, unsigned char *out, int outlen)
{
- unsigned char *p = out;
- int idx, ret = 0;
- long mask;
EVP_MD_CTX ctx;
- const EVP_MD *md;
+ EVP_MD_CTX *hdgst = s->s3->handshake_dgst;
+ int ret = EVP_MD_CTX_size(hdgst);
EVP_MD_CTX_init(&ctx);
- for (idx = 0; ssl_get_handshake_digest(idx, &mask, &md); idx++) {
- if (mask & ssl_get_algorithm2(s)) {
- int hashsize = EVP_MD_size(md);
- EVP_MD_CTX *hdgst = s->s3->handshake_dgst[idx];
- if (!hdgst || hashsize < 0 || hashsize > outlen)
- goto err;
- if (!EVP_MD_CTX_copy_ex(&ctx, hdgst))
- goto err;
- if (!EVP_DigestFinal_ex(&ctx, p, NULL))
- goto err;
- p += hashsize;
- outlen -= hashsize;
- }
+ if (ret < 0 || ret > outlen) {
+ ret = 0;
+ goto err;
}
- ret = p - out;
+ if (!EVP_MD_CTX_copy_ex(&ctx, hdgst)
+ || EVP_DigestFinal_ex(&ctx, out, NULL) <= 0)
+ ret = 0;
err:
EVP_MD_CTX_cleanup(&ctx);
return ret;