38 lines
1.2 KiB
Go
38 lines
1.2 KiB
Go
// Copyright (c) 2013-2016 The btcsuite developers
|
|
// Use of this source code is governed by an ISC
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package btcec
|
|
|
|
import (
|
|
secp "github.com/decred/dcrd/dcrec/secp256k1/v4"
|
|
)
|
|
|
|
// PrivateKey wraps an ecdsa.PrivateKey as a convenience mainly for signing
|
|
// things with the the private key without having to directly import the ecdsa
|
|
// package.
|
|
type PrivateKey = secp.PrivateKey
|
|
|
|
// PrivKeyFromBytes returns a private and public key for `curve' based on the
|
|
// private key passed as an argument as a byte slice.
|
|
func PrivKeyFromBytes(pk []byte) (*PrivateKey, *PublicKey) {
|
|
privKey := secp.PrivKeyFromBytes(pk)
|
|
|
|
return privKey, privKey.PubKey()
|
|
}
|
|
|
|
// NewPrivateKey is a wrapper for ecdsa.GenerateKey that returns a PrivateKey
|
|
// instead of the normal ecdsa.PrivateKey.
|
|
func NewPrivateKey() (*PrivateKey, error) {
|
|
return secp.GeneratePrivateKey()
|
|
}
|
|
|
|
// PrivKeyFromScalar instantiates a new private key from a scalar encoded as a
|
|
// big integer.
|
|
func PrivKeyFromScalar(key *ModNScalar) *PrivateKey {
|
|
return &PrivateKey{Key: *key}
|
|
}
|
|
|
|
// PrivKeyBytesLen defines the length in bytes of a serialized private key.
|
|
const PrivKeyBytesLen = 32
|