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Added EncodeScriptHash for BIP-0013 compliance

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Implemented address format for pay-to-script-hash
This commit is contained in:
Francis Lam 2014-01-02 00:25:00 -05:00
parent 9759e8dc64
commit 592d38d55f
1 changed files with 30 additions and 0 deletions
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30
addrconvs.go
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@ -39,6 +39,12 @@ const (
// TestNetKey is the key identifier for TestNet // TestNetKey is the key identifier for TestNet
TestNetKey = 0xef TestNetKey = 0xef
// MainNetScriptHash is the address identifier for MainNet
MainNetScriptHash = 0x05
// TestNetScriptHash is the address identifier for TestNet
TestNetScriptHash = 0xC4
) )
// EncodeAddress takes a 20-byte raw payment address (hash160 of a pubkey) // EncodeAddress takes a 20-byte raw payment address (hash160 of a pubkey)
@ -58,6 +64,30 @@ func EncodeAddress(addrHash []byte, net btcwire.BitcoinNet) (encoded string, err
return "", ErrUnknownNet return "", ErrUnknownNet
} }
return encodeHashWithNetId(netID, addrHash)
}
// EncodeScriptHash takes a 20-byte raw script hash (hash160 of a pubkey)
// and the Bitcoin network to create a human-readable payment address string.
func EncodeScriptHash(addrHash []byte, net btcwire.BitcoinNet) (encoded string, err error) {
if len(addrHash) != ripemd160.Size {
return "", ErrMalformedAddress
}
var netID byte
switch net {
case btcwire.MainNet:
netID = MainNetScriptHash
case btcwire.TestNet3:
netID = TestNetScriptHash
default:
return "", ErrUnknownNet
}
return encodeHashWithNetId(netID, addrHash)
}
func encodeHashWithNetId(netID byte, addrHash []byte) (encoded string, err error) {
tosum := append([]byte{netID}, addrHash...) tosum := append([]byte{netID}, addrHash...)
cksum := btcwire.DoubleSha256(tosum) cksum := btcwire.DoubleSha256(tosum)