X-Git-Url: http://www.git.cypherpunks.ru/?p=gogost.git;a=blobdiff_plain;f=gost3410%2Fprivate.go;h=231f45e552934c7bcee1f44a31a929d2a72ca336;hp=045c8185b94458e7ad2c9be153bd37eeb99f04ed;hb=0da4d634ac5368d024489baf4bdd5d422b84dd84;hpb=ce6c45e481a59d843a3b9caab55608c738aac2f4

diff --git a/gost3410/private.go b/gost3410/private.go
index 045c818..231f45e 100644
--- a/gost3410/private.go
+++ b/gost3410/private.go
@@ -18,6 +18,7 @@ package gost3410
 import (
 	"crypto"
 	"errors"
+	"fmt"
 	"io"
 	"math/big"
 )
@@ -30,7 +31,7 @@ type PrivateKey struct {
 
 func NewPrivateKey(curve *Curve, mode Mode, raw []byte) (*PrivateKey, error) {
 	if len(raw) != int(mode) {
-		return nil, errors.New("Invalid private key length")
+		return nil, fmt.Errorf("gogost/gost3410: len(key) != %d", mode)
 	}
 	key := make([]byte, int(mode))
 	for i := 0; i < len(key); i++ {
@@ -38,7 +39,7 @@ func NewPrivateKey(curve *Curve, mode Mode, raw []byte) (*PrivateKey, error) {
 	}
 	k := bytes2big(key)
 	if k.Cmp(zero) == 0 {
-		return nil, errors.New("Zero private key")
+		return nil, errors.New("gogost/gost3410: zero private key")
 	}
 	return &PrivateKey{curve, mode, k}, nil
 }