-static int dsa_get_md_nid(const EVP_MD *md)
-{
- /*
- * Because the DSA library deals with NIDs, we need to translate.
- * We do so using EVP_MD_is_a(), and therefore need a name to NID
- * map.
- */
- static const OSSL_ITEM name_to_nid[] = {
- { NID_sha1, OSSL_DIGEST_NAME_SHA1 },
- { NID_sha224, OSSL_DIGEST_NAME_SHA2_224 },
- { NID_sha256, OSSL_DIGEST_NAME_SHA2_256 },
- { NID_sha384, OSSL_DIGEST_NAME_SHA2_384 },
- { NID_sha512, OSSL_DIGEST_NAME_SHA2_512 },
- { NID_sha3_224, OSSL_DIGEST_NAME_SHA3_224 },
- { NID_sha3_256, OSSL_DIGEST_NAME_SHA3_256 },
- { NID_sha3_384, OSSL_DIGEST_NAME_SHA3_384 },
- { NID_sha3_512, OSSL_DIGEST_NAME_SHA3_512 },
- };
- size_t i;
- int mdnid = NID_undef;
-
- if (md == NULL)
- goto end;
-
- for (i = 0; i < OSSL_NELEM(name_to_nid); i++) {
- if (EVP_MD_is_a(md, name_to_nid[i].ptr)) {
- mdnid = (int)name_to_nid[i].id;
- break;
- }
- }
-
- if (mdnid == NID_undef)
- ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_DIGEST);
-
- end:
- return mdnid;
-}
-