Slightly more descriptive errors

[gogost.git] / gost3410 / vko2001.go

diff --git a/gost3410/vko2001.go b/gost3410/vko2001.go
index ed49d8f00fbb423f4991dc650bad9a618bd38800..c950280bf7f6de78a5e4ee71e4aab7898488ca22 100644 (file)
--- a/gost3410/vko2001.go
+++ b/gost3410/vko2001.go
@@ -27,7 +27,7 @@ import (
 // UKM is user keying material, also called VKO-factor.
 func (prv *PrivateKey) KEK2001(pub *PublicKey, ukm *big.Int) ([]byte, error) {
        if prv.Mode != Mode2001 {
-               return nil, errors.New("KEK2001 can not be used in Mode2012")
+               return nil, errors.New("gogost/gost3410: KEK2001 can not be used in Mode2012")
        }
        key, err := prv.KEK(pub, ukm)
        if err != nil {