-
- gost_key(&(((struct ossl_gost_imit_ctx *)(ctx->md_data))->cctx),
- ptr);
- ((struct ossl_gost_imit_ctx *)(ctx->md_data))->key_set = 1;
+ ctx->flags |= EVP_MD_CTX_FLAG_NO_INIT;
+
+ if (arg == 0) {
+ struct gost_mac_key *key = (struct gost_mac_key *)ptr;
+ if (key->mac_param_nid != NID_undef) {
+ const struct gost_cipher_info *param =
+ get_encryption_params(OBJ_nid2obj
+ (key->mac_param_nid));
+ if (param == NULL) {
+ GOSTerr(GOST_F_GOST_IMIT_CTRL,
+ GOST_R_INVALID_MAC_PARAMS);
+ return 0;
+ }
+ gost_init(&(gost_imit_ctx->cctx), param->sblock);
+ }
+ gost_key(&(gost_imit_ctx->cctx), key->key);
+ gost_imit_ctx->key_set = 1;
+
+ return 1;
+ } else if (arg == 32) {
+ gost_key(&(gost_imit_ctx->cctx), ptr);
+ gost_imit_ctx->key_set = 1;
+ return 1;
+ }
+ GOSTerr(GOST_F_GOST_IMIT_CTRL, GOST_R_INVALID_MAC_KEY_SIZE);
+ return 0;
+ }
+ case EVP_MD_CTRL_MAC_LEN:
+ {
+ struct ossl_gost_imit_ctx *c = ctx->md_data;
+ if (arg < 1 || arg > 8) {
+ GOSTerr(GOST_F_GOST_IMIT_CTRL, GOST_R_INVALID_MAC_SIZE);
+ return 0;
+ }
+ c->dgst_size = arg;