X-Git-Url: http://www.git.cypherpunks.ru/?a=blobdiff_plain;f=gost3410%2Fvko2012.go;h=bb1a9edc4fcb3d04a6cc21c3d0bd0d975d17ccad;hb=d681002980ca0b115936a6e217de5649bb8966d3;hp=b4527685492358ee72deb3306e2662ea3d68c47b;hpb=5afe1dcbfaf1043ed9e72e215a285966eaba3369;p=gogost.git

diff --git a/gost3410/vko2012.go b/gost3410/vko2012.go
index b452768..bb1a9ed 100644
--- a/gost3410/vko2012.go
+++ b/gost3410/vko2012.go
@@ -1,5 +1,5 @@
 // GoGOST -- Pure Go GOST cryptographic functions library
-// Copyright (C) 2015-2023 Sergey Matveev <stargrave@stargrave.org>
+// Copyright (C) 2015-2024 Sergey Matveev <stargrave@stargrave.org>
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -16,6 +16,7 @@
 package gost3410
 
 import (
+	"fmt"
 	"math/big"
 
 	"go.cypherpunks.ru/gogost/v5/gost34112012256"
@@ -27,11 +28,11 @@ import (
 func (prv *PrivateKey) KEK2012256(pub *PublicKey, ukm *big.Int) ([]byte, error) {
 	key, err := prv.KEK(pub, ukm)
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("gogost/gost3410.PrivateKey.KEK2012256: %w", err)
 	}
 	h := gost34112012256.New()
 	if _, err = h.Write(key); err != nil {
-		return nil, err
+		return nil, fmt.Errorf("gogost/gost3410.PrivateKey.KEK2012256: %w", err)
 	}
 	return h.Sum(key[:0]), nil
 }
@@ -41,11 +42,11 @@ func (prv *PrivateKey) KEK2012256(pub *PublicKey, ukm *big.Int) ([]byte, error)
 func (prv *PrivateKey) KEK2012512(pub *PublicKey, ukm *big.Int) ([]byte, error) {
 	key, err := prv.KEK(pub, ukm)
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("gogost/gost3410.PrivateKey.KEK2012256: %w", err)
 	}
 	h := gost34112012512.New()
 	if _, err = h.Write(key); err != nil {
-		return nil, err
+		return nil, fmt.Errorf("gogost/gost3410.PrivateKey.KEK2012256: %w", err)
 	}
 	return h.Sum(key[:0]), nil
 }