Some fixes of OMAC processing

[openssl-gost/engine.git] / gost_omac_acpkm.c

diff --git a/gost_omac_acpkm.c b/gost_omac_acpkm.c
index 9bdb05f0e510ae2be0957531bfa777e329e79788..3061e36f8d13f3cb84e5d337ef184a86b6a58d52 100644 (file)
--- a/gost_omac_acpkm.c
+++ b/gost_omac_acpkm.c
@@ -475,6 +475,13 @@ int omac_acpkm_imit_ctrl(EVP_MD_CTX *ctx, int type, int arg, void *ptr)
                 }
                 c->dgst_size = arg;
                 break;
+            case NID_magma_cbc:
+                if (arg < 1 || arg > 8) {
+                    GOSTerr(GOST_F_OMAC_ACPKM_IMIT_CTRL, GOST_R_INVALID_MAC_SIZE);
+                    return 0;
+                }
+                c->dgst_size = arg;
+                break;
             default:
                 return 0;
             }