function sign (tx, index, keyPair) {
var prevOutScript = scripts.pubKeyHashOutput(keyPair.publicHash)
var hash = tx.hashForSignature(index, prevOutScript, Transaction.SIGHASH_ALL)
var signature = ecdsa.serializeSig(ecdsa.sign(new Buffer(hash), keyPair.privateKey))
signature.push(Transaction.SIGHASH_ALL)
tx.setInputScript(index, Script.fromChunks([new Buffer(signature), keyPair.publicKey]))
}
function addressToScript (address) {
var pubKeyHash = cs.decode(address).slice(1)
return scripts.pubKeyHashOutput(new Buffer(pubKeyHash, 'hex'))
}
function addressToOutputScript (address) {
var pubKeyHash = cs.decode(address, blackCoinInfo.versions.public)
return scripts.pubKeyHashOutput(new Buffer(pubKeyHash, 'hex'))
}