X-Git-Url: http://www.git.cypherpunks.ru/?a=blobdiff_plain;f=gost3410%2Fprivate.go;h=8168fe00bbfda343b0d6f776cf4ccb04b5c1c773;hb=5fc90f4d05f0515cc91dd9feceb813e2b753cbb7;hp=4d73b07fc3f652c5c7018cea459503e47029f7f1;hpb=6d9056bfe4a2d69469a1e70f3bf08f89b377b06e;p=gogost.git

diff --git a/gost3410/private.go b/gost3410/private.go
index 4d73b07..8168fe0 100644
--- a/gost3410/private.go
+++ b/gost3410/private.go
@@ -1,5 +1,5 @@
 // GoGOST -- Pure Go GOST cryptographic functions library
-// Copyright (C) 2015-2021 Sergey Matveev <stargrave@stargrave.org>
+// Copyright (C) 2015-2022 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
@@ -28,8 +28,8 @@ type PrivateKey struct {
 	Key *big.Int
 }
 
-func NewPrivateKey(curve *Curve, raw []byte) (*PrivateKey, error) {
-	pointSize := curve.PointSize()
+func NewPrivateKey(c *Curve, raw []byte) (*PrivateKey, error) {
+	pointSize := c.PointSize()
 	if len(raw) != pointSize {
 		return nil, fmt.Errorf("gogost/gost3410: len(key) != %d", pointSize)
 	}
@@ -41,15 +41,15 @@ func NewPrivateKey(curve *Curve, raw []byte) (*PrivateKey, error) {
 	if k.Cmp(zero) == 0 {
 		return nil, errors.New("gogost/gost3410: zero private key")
 	}
-	return &PrivateKey{curve, k}, nil
+	return &PrivateKey{c, k.Mod(k, c.Q)}, nil
 }
 
-func GenPrivateKey(curve *Curve, rand io.Reader) (*PrivateKey, error) {
-	raw := make([]byte, curve.PointSize())
+func GenPrivateKey(c *Curve, rand io.Reader) (*PrivateKey, error) {
+	raw := make([]byte, c.PointSize())
 	if _, err := io.ReadFull(rand, raw); err != nil {
 		return nil, err
 	}
-	return NewPrivateKey(curve, raw)
+	return NewPrivateKey(c, raw)
 }
 
 func (prv *PrivateKey) Raw() []byte {