From 76eca07961961786f0e70d5a5f5b703013a9de2b Mon Sep 17 00:00:00 2001
From: Roman Khimov <roman@nspcc.ru>
Date: Wed, 25 Aug 2021 19:58:01 +0300
Subject: [PATCH] keys: simplify NewPrivateKeyFrom* functions

Avoid allocating a slice and doing double calculations.
---
 pkg/crypto/keys/private_key.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pkg/crypto/keys/private_key.go b/pkg/crypto/keys/private_key.go
index f27f92145..3f72a6d42 100644
--- a/pkg/crypto/keys/private_key.go
+++ b/pkg/crypto/keys/private_key.go
@@ -64,7 +64,7 @@ func NewPrivateKeyFromBytes(b []byte) (*PrivateKey, error) {
 		d = new(big.Int).SetBytes(b)
 	)
 
-	x, y := c.ScalarBaseMult(d.Bytes())
+	x, y := c.ScalarBaseMult(b)
 
 	return &PrivateKey{
 		ecdsa.PrivateKey{
@@ -85,7 +85,7 @@ func NewPrivateKeyFromASN1(b []byte) (*PrivateKey, error) {
 	if err != nil {
 		return nil, err
 	}
-	return NewPrivateKeyFromBytes(privkey.D.Bytes())
+	return &PrivateKey{*privkey}, nil
 }
 
 // PublicKey derives the public key from the private key.