LBRYCommunity/lbry.go
1
0
Fork 0
Code Issues 5 Pull requests Projects Releases 46 Packages Wiki Activity

Add PrivateKeyToDER function

Browse source
This commit is contained in:
Mark Beamer Jr 2021-03-14 04:17:27 -04:00
parent 4c3372992c
commit bd452c421f
No known key found for this signature in database
GPG key ID: 1C314FB89AD76973
1 changed files with 25 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

33
schema/keys/keys.go
View file

@ -17,14 +17,6 @@ type publicKeyInfo struct {
PublicKey asn1.BitString
}
//This type provides compatibility with the btcec package
type ecPrivateKey struct {
Version int
PrivateKey []byte
NamedCurveOID asn1.ObjectIdentifier `asn1:"optional,explicit,tag:0"`
PublicKey asn1.BitString `asn1:"optional,explicit,tag:1"`
}
func PublicKeyToDER(publicKey *btcec.PublicKey) ([]byte, error) {
var publicKeyBytes []byte
var publicKeyAlgorithm pkix.AlgorithmIdentifier
@ -50,6 +42,31 @@ func PublicKeyToDER(publicKey *btcec.PublicKey) ([]byte, error) {
}
//This type provides compatibility with the btcec package
type ecPrivateKey struct {
Version int
PrivateKey []byte
NamedCurveOID asn1.ObjectIdentifier `asn1:"optional,explicit,tag:0"`
PublicKey asn1.BitString `asn1:"optional,explicit,tag:1"`
}
func PrivateKeyToDER(privateKey *btcec.PrivateKey) ([]byte, error) {
priv := privateKey.ToECDSA()
privateKeyBytes := elliptic.Marshal(priv.Curve, priv.X, priv.Y)
pub := privateKey.PubKey().ToECDSA()
publicKeyBytes := elliptic.Marshal(pub.Curve, pub.X, pub.Y)
return asn1.Marshal(ecPrivateKey{
Version: 1,
PrivateKey: priv.D.FillBytes(privateKeyBytes),
//asn1 encoding oid for secp256k1 https://github.com/bitpay/bitpay-go/blob/v2.2.2/key_utils/key_utils.go#L30
NamedCurveOID: asn1.ObjectIdentifier{1, 3, 132, 0, 10},
PublicKey: asn1.BitString{
Bytes: publicKeyBytes,
BitLength: 8 * len(publicKeyBytes),
},
})
}
func GetPublicKeyFromBytes(pubKeyBytes []byte) (*btcec.PublicKey, error) {
PKInfo := publicKeyInfo{}
asn1.Unmarshal(pubKeyBytes, &PKInfo)