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blockchain_go
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Extract public key hashing into a separate function

This commit is contained in:
Ivan Kuznetsov 2017-09-08 10:27:28 +07:00
parent e6eed1105f
commit 484d0bbae2
1 changed files with 17 additions and 10 deletions
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27
wallet.go
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@ -31,17 +31,10 @@ type Wallets struct {
// GetAddress returns wallet address // GetAddress returns wallet address
func (w Wallet) GetAddress() []byte { func (w Wallet) GetAddress() []byte {
public := append(w.PublicKey.X.Bytes(), w.PublicKey.Y.Bytes()...) pubKey := append(w.PublicKey.X.Bytes(), w.PublicKey.Y.Bytes()...)
publicSHA256 := sha256.Sum256(public) pubKeyHash := HashPubKey(pubKey)
RIPEMD160Hasher := ripemd160.New() versionedPayload := append([]byte{version}, pubKeyHash...)
_, err := RIPEMD160Hasher.Write(publicSHA256[:])
if err != nil {
log.Panic(err)
}
publicRIPEMD160 := RIPEMD160Hasher.Sum(nil)
versionedPayload := append([]byte{version}, publicRIPEMD160...)
checksum := checksum(versionedPayload) checksum := checksum(versionedPayload)
fullPayload := append(versionedPayload, checksum...) fullPayload := append(versionedPayload, checksum...)
@ -141,6 +134,20 @@ func NewWallets() (*Wallets, error) {
return &wallets, err return &wallets, err
} }
// HashPubKey hashes public key
func HashPubKey(pubKey []byte) []byte {
publicSHA256 := sha256.Sum256(pubKey)
RIPEMD160Hasher := ripemd160.New()
_, err := RIPEMD160Hasher.Write(publicSHA256[:])
if err != nil {
log.Panic(err)
}
publicRIPEMD160 := RIPEMD160Hasher.Sum(nil)
return publicRIPEMD160
}
// Checksum generates a checksum for a public key // Checksum generates a checksum for a public key
func checksum(payload []byte) []byte { func checksum(payload []byte) []byte {
firstSHA := sha256.Sum256(payload) firstSHA := sha256.Sum256(payload)