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Simple Hodl Address

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This commit is contained in:
Denilson M. Amorim
2015-12-27 00:37:51 -03:00
parent 9a669885b3
commit c8577e03be
8 changed files with 542 additions and 30 deletions
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js/coin.js
+57
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@@ -135,6 +135,36 @@
return {'address':address, 'redeemScript':redeemScript};
}
/* new time locked address, provide the pubkey and time necessary to unlock the funds.
when time is greater than 500000000, it should be a unix timestamp (seconds since epoch),
otherwise it should be the block height required before this transaction can be released.
may throw a string on failure!
*/
coinjs.simpleHodlAddress = function(pubkey, locktime) {
if(locktime < 0) {
throw "Locktime is negative.";
}
var s = coinjs.script();
s.writeBytes(Crypto.util.hexToBytes(locktime.toString(16)));
s.writeOp(177);//OP_CHECKLOCKTIMEVERIFY
s.writeOp(117);//OP_DROP
s.writeBytes(Crypto.util.hexToBytes(pubkey));
s.writeOp(172);//OP_CHECKSIG
var x = ripemd160(Crypto.SHA256(s.buffer, {asBytes: true}), {asBytes: true});
x.unshift(coinjs.multisig);
var r = x;
r = Crypto.SHA256(Crypto.SHA256(r, {asBytes: true}), {asBytes: true});
var checksum = r.slice(0,4);
var redeemScript = Crypto.util.bytesToHex(s.buffer);
var address = coinjs.base58encode(x.concat(checksum));
return {'address':address, 'redeemScript':redeemScript};
}
/* provide a privkey and return an WIF */
coinjs.privkey2wif = function(h){
var r = Crypto.util.hexToBytes(h);
@@ -649,6 +679,14 @@
r.pubkeys = pubkeys;
var multi = coinjs.pubkeys2MultisigAddress(pubkeys, r.signaturesRequired);
r.address = multi['address'];
r.type = 'multisig__'; // using __ for now to differentiat from the other object .type == "multisig"
} else if(s.chunks.length == 5 && s.chunks[1] == 177 && s.chunks[2] == 117 && s.chunks[4] == 172){
// ^ <locktime> OP_CHECKLOCKTIMEVERIFY OP_DROP <pubkey> OP_CHECKSIG ^
r = {}
r.pubkey = Crypto.util.bytesToHex(s.chunks[3]);
r.locktime = parseInt(Crypto.util.bytesToHex(s.chunks[0]), 16); // TODO is this endian safe?
r.address = coinjs.simpleHodlAddress(r.pubkey, r.locktime).address;
r.type = "hodl__";
}
} catch(e) {
// console.log(e);
@@ -898,9 +936,15 @@
if((this.ins[index].script.chunks.length==5) && this.ins[index].script.chunks[4]==172 && coinjs.isArray(this.ins[index].script.chunks[2])){ //OP_CHECKSIG
// regular scriptPubkey (not signed)
return {'type':'scriptpubkey', 'signed':'false', 'signatures':0, 'script': Crypto.util.bytesToHex(this.ins[index].script.buffer)};
} else if((this.ins[index].script.chunks.length==2) && this.ins[index].script.chunks[0][0]==48 && this.ins[index].script.chunks[1].length == 5 && this.ins[index].script.chunks[1][1]==177){//OP_CHECKLOCKTIMEVERIFY
// hodl script (signed)
return {'type':'hodl', 'signed':'true', 'signatures':1, 'script': Crypto.util.bytesToHex(this.ins[index].script.buffer)};
} else if((this.ins[index].script.chunks.length==2) && this.ins[index].script.chunks[0][0]==48){
// regular scriptPubkey (probably signed)
return {'type':'scriptpubkey', 'signed':'true', 'signatures':1, 'script': Crypto.util.bytesToHex(this.ins[index].script.buffer)};
} else if(this.ins[index].script.chunks.length == 5 && this.ins[index].script.chunks[1] == 177){//OP_CHECKLOCKTIMEVERIFY
// hodl script (not signed)
return {'type':'hodl', 'signed':'false', 'signatures': 0, 'script': Crypto.util.bytesToHex(this.ins[index].script.buffer)};
} else if (this.ins[index].script.chunks[0]==0 && this.ins[index].script.chunks[this.ins[index].script.chunks.length-1][this.ins[index].script.chunks[this.ins[index].script.chunks.length-1].length-1]==174) { // OP_CHECKMULTISIG
// multisig script, with signature(s) included
return {'type':'multisig', 'signed':'true', 'signatures':this.ins[index].script.chunks.length-2, 'script': Crypto.util.bytesToHex(this.ins[index].script.chunks[this.ins[index].script.chunks.length-1])};
@@ -1048,6 +1092,17 @@
this.ins[index].script = s;
return true;
}
/* signs a time locked / hodl input */
r.signhodl = function(index, wif){
var signature = this.transactionSig(index, wif);
var redeemScript = this.ins[index].script.buffer
var s = coinjs.script();
s.writeBytes(Crypto.util.hexToBytes(signature));
s.writeBytes(redeemScript);
this.ins[index].script = s;
return true;
}
/* sign a multisig input */
r.signmultisig = function(index, wif){
@@ -1111,6 +1166,8 @@
if(((d['type'] == 'scriptpubkey' && d['script']==Crypto.util.bytesToHex(pubkeyHash.buffer)) || d['type'] == 'empty') && d['signed'] == "false"){
this.signinput(i, wif);
} else if (d['type'] == 'hodl' && d['signed'] == "false") {
this.signhodl(i, wif);
} else if (d['type'] == 'multisig') {
this.signmultisig(i, wif);
} else {