Update lib.js
This commit is contained in:
sairajzero
parent
57ef2ede72
commit
7daa5e4a2c
402
scripts/lib.js
402
scripts/lib.js
@ -1,4 +1,4 @@
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(function (GLOBAL) { //lib v1.3.2
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(function (GLOBAL) { //lib v1.4.2
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'use strict';
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/* Utility Libraries required for Standard operations
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* All credits for these codes belong to their respective creators, moderators and owners.
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@ -4349,18 +4349,10 @@
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var bitjs = GLOBAL.bitjs = function () { };
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function ascii_to_hexa(str) {
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var arr1 = [];
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for (var n = 0, l = str.length; n < l; n++) {
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var hex = Number(str.charCodeAt(n)).toString(16);
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arr1.push(hex);
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}
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return arr1.join('');
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}
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/* public vars */
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bitjs.pub = 0x23; // flochange - changed the prefix to FLO Mainnet PublicKey Prefix 0x23
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bitjs.priv = 0xa3; //flochange - changed the prefix to FLO Mainnet Private key prefix 0xa3
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bitjs.multisig = 0x5e; //flochange - prefix for FLO Mainnet Multisig 0x5e
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bitjs.compressed = false;
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/* provide a privkey and return an WIF */
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@ -4461,7 +4453,46 @@
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return B58.encode(r.concat(checksum));
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}
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bitjs.transaction = function () {
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/* generate a multisig address from pubkeys and required signatures */
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bitjs.pubkeys2multisig = function (pubkeys, required) {
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var s = [];
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s.push(80 + required); //OP_1
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for (var i = 0; i < pubkeys.length; ++i) {
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let bytes = Crypto.util.hexToBytes(pubkeys[i]);
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s.push(bytes.length);
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s = s.concat(bytes);
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}
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s.push(80 + pubkeys.length); //OP_1
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s.push(174); //OP_CHECKMULTISIG
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if (s.length > 520) { // too large
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throw Error(`redeemScript size(=${s.length}) too large`)
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}
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var x = ripemd160(Crypto.SHA256(s, {
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asBytes: true
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}), {
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asBytes: true
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});
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x.unshift(bitjs.multisig);
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var r = x;
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r = Crypto.SHA256(Crypto.SHA256(r, {
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asBytes: true
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}), {
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asBytes: true
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});
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var checksum = r.slice(0, 4);
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var redeemScript = Crypto.util.bytesToHex(s);
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var address = B58.encode(x.concat(checksum));
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return {
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'address': address,
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'redeemScript': redeemScript,
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'size': s.length
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};
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}
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bitjs.transaction = function (tx_data = undefined) {
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var btrx = {};
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btrx.version = 2; //flochange look at this version
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btrx.inputs = [];
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@ -4476,7 +4507,6 @@
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'hash': txid,
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'index': index
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};
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//o.script = []; Signature and Public Key should be added after singning
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o.script = Crypto.util.hexToBytes(scriptPubKey); //push previous output pubkey script
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o.sequence = sequence || ((btrx.locktime == 0) ? 4294967295 : 0);
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return this.inputs.push(o);
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@ -4485,26 +4515,43 @@
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btrx.addoutput = function (address, value) {
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var o = {};
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var buf = [];
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var addrDecoded = btrx.addressDecode(address);
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var addr = this.addressDecode(address);
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o.value = new BigInteger('' + Math.round((value * 1) * 1e8), 10);
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buf.push(118); //OP_DUP
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buf.push(169); //OP_HASH160
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buf.push(addrDecoded.length);
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buf = buf.concat(addrDecoded); // address in bytes
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buf.push(136); //OP_EQUALVERIFY
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buf.push(172); // OP_CHECKSIG
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if (addr.version === bitjs.pub) { // regular address
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buf.push(118); //OP_DUP
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buf.push(169); //OP_HASH160
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buf.push(addr.bytes.length);
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buf = buf.concat(addr.bytes); // address in bytes
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buf.push(136); //OP_EQUALVERIFY
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buf.push(172); //OP_CHECKSIG
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} else if (addr.version === bitjs.multisig) { // multisig address
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buf.push(169); //OP_HASH160
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buf.push(addr.bytes.length);
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buf = buf.concat(addr.bytes); // address in bytes
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buf.push(135); //OP_EQUAL
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}
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o.script = buf;
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return this.outputs.push(o);
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}
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// flochange - Added fn to assign flodata to tx
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btrx.addflodata = function (data) {
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//checks for valid flo-data string
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if (typeof data !== "string")
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throw Error("floData should be String");
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if (data.length > 1040)
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throw Error("floData Character Limit Exceeded");
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if (bitjs.strToBytes(data).some(c => c < 32 || c > 127))
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throw Error("floData contains Invalid characters (only ASCII characters allowed");
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btrx.addflodata = function (txcomments) { // flochange - this whole function needs to be done
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this.floData = txcomments;
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return this.floData; //flochange .. returning the txcomments -- check if the function return will assign
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this.floData = data;
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return this.floData;
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}
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// Only standard addresses
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// Only standard addresses (standard multisig supported)
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btrx.addressDecode = function (address) {
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var bytes = B58.decode(address);
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var front = bytes.slice(0, bytes.length - 4);
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@ -4515,7 +4562,10 @@
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asBytes: true
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}).slice(0, 4);
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if (checksum + "" == back + "") {
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return front.slice(1);
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return {
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version: front[0],
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bytes: front.slice(1)
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};
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}
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}
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@ -4740,6 +4790,62 @@
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return KBigInt;
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};
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btrx.parseScript = function (script) {
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var chunks = [];
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var i = 0;
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function readChunk(n) {
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chunks.push(script.slice(i, i + n));
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i += n;
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};
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while (i < script.length) {
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var opcode = script[i++];
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if (opcode >= 0xF0) {
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opcode = (opcode << 8) | script[i++];
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}
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var len;
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if (opcode > 0 && opcode < 76) { //OP_PUSHDATA1
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readChunk(opcode);
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} else if (opcode == 76) { //OP_PUSHDATA1
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len = script[i++];
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readChunk(len);
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} else if (opcode == 77) { //OP_PUSHDATA2
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len = (script[i++] << 8) | script[i++];
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readChunk(len);
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} else if (opcode == 78) { //OP_PUSHDATA4
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len = (script[i++] << 24) | (script[i++] << 16) | (script[i++] << 8) | script[i++];
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readChunk(len);
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} else {
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chunks.push(opcode);
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}
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if (i < 0x00) {
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break;
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}
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}
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return chunks;
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}
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btrx.decodeRedeemScript = function (rs) {
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if (typeof rs == "string")
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rs = Crypto.util.hexToBytes(rs);
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var script = this.parseScript(rs);
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if (!(script[0] > 80 && script[script.length - 2] > 80 && script[script.length - 1] == 174)) //OP_CHECKMULTISIG
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throw "Invalid RedeemScript";
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var r = {};
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r.required = script[0] - 80;
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r.pubkeys = [];
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for (var i = 1; i < script.length - 2; i++)
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r.pubkeys.push(Crypto.util.bytesToHex(script[i]));
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r.address = bitjs.pubkeys2multisig(r.pubkeys, r.required).address;
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r.redeemscript = Crypto.util.bytesToHex(rs);
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return r;
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}
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/* sign a "standard" input */
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btrx.signinput = function (index, wif, sigHashType) {
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var key = bitjs.wif2pubkey(wif);
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@ -4756,15 +4862,100 @@
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return true;
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}
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/* sign a multisig input */
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btrx.signmultisig = function (index, wif, sigHashType) {
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var script = Array.from(this.inputs[index].script);
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var redeemScript, sigsList = [];
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if (script[0] == 0) { //script with signatures
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script = this.parseScript(script);
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for (var i = 0; i < script.length; i++) {
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if (Array.isArray(script[i])) {
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if (script[i][0] == 48) //0x30 DERSequence
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sigsList.push(script[i]);
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else if (script[i][0] >= 80 && script[i][script[i].length - 1] == 174) //OP_CHECKMULTISIG
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redeemScript = script[i];
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}
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}
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} else { //script = redeemscript
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redeemScript = script;
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}
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var pubkeyList = this.decodeRedeemScript(redeemScript).pubkeys;
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var pubkey = bitjs.wif2pubkey(wif)['pubkey'];
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if (!pubkeyList.includes(pubkey)) //wif not a part of this multisig
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return false;
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pubkeyList = pubkeyList.map(pub => Crypto.util.hexToBytes(bitjs.pubkeydecompress(pub))); //decompress pubkeys
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var shType = sigHashType || 1;
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this.inputs[index].script = redeemScript; //script to be signed is redeemscript
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var signature = Crypto.util.hexToBytes(this.transactionSig(index, wif, shType));
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sigsList.push(signature);
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var buf = [];
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buf.push(0);
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//verify signatures and order them (also remove duplicate sigs)
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for (let x in pubkeyList) {
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for (let y in sigsList) {
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var sighash = Crypto.util.hexToBytes(this.transactionHash(index, sigsList[y].slice(-1)[0] * 1));
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if (bitjs.verifySignature(sighash, sigsList[y], pubkeyList[x])) {
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buf.push(sigsList[y].length);
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buf = buf.concat(sigsList[y]);
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break; //ensures duplicate sigs from same pubkey are not added
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}
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}
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}
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//append redeemscript
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buf.push(redeemScript.length);
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buf = buf.concat(redeemScript);
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this.inputs[index].script = buf;
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return true;
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}
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/* sign inputs */
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btrx.sign = function (wif, sigHashType) {
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var shType = sigHashType || 1;
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for (var i = 0; i < this.inputs.length; i++) {
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this.signinput(i, wif, shType);
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var decodedScript = this.scriptDecode(i);
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if (decodedScript.type == "scriptpubkey" && decodedScript.signed == false) { //regular
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var addr = bitjs.wif2address(wif)["address"];;
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if (decodedScript.pubhash == Crypto.util.bytesToHex(this.addressDecode(addr).bytes)) //input belongs to wif
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this.signinput(i, wif, shType);
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} else if (decodedScript.type == "multisig") { //multisig
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this.signmultisig(i, wif, shType);
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}
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}
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return this.serialize();
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}
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// function to find type of the script in input
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btrx.scriptDecode = function (index) {
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var script = this.parseScript(this.inputs[index].script);
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if (script.length == 5 && script[script.length - 1] == 172) {
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//OP_DUP OP_HASH160 [address bytes] OP_EQUALVERIFY OP_CHECKSIG
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// regular scriptPubkey (not signed)
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return { type: 'scriptpubkey', signed: false, pubhash: Crypto.util.bytesToHex(script[2]) };
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} else if (script.length == 2 && script[0][0] == 48) {
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//[signature] [pubkey]
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//(probably) regular signed
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return { type: 'scriptpubkey', signed: true };
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} else if (script[0] == 0 && script[script.length - 1][script[script.length - 1].length - 1] == 174) {
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//0 [signatues] [redeemscript OP_CHECKMULTISIG]
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// multisig with signature
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return { type: 'multisig', rs: script[script.length - 1] };
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} else if (script[0] >= 80 && script[script.length - 1] == 174) {
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//redeemscript: 80+ [pubkeys] OP_CHECKMULTISIG
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// multisig without signature
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return { type: 'multisig', rs: Array.from(this.inputs[index].script) };
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}
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}
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/* serialize a transaction */
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btrx.serialize = function () {
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@ -4793,28 +4984,85 @@
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}
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buffer = buffer.concat(bitjs.numToBytes(parseInt(this.locktime), 4));
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var flohex = ascii_to_hexa(this.floData);
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var floDataCount = this.floData.length;
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var floDataCountString;
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//flochange -- creating unique data character count logic for floData. This string is prefixed before actual floData string in Raw Transaction
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if (floDataCount < 16) {
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floDataCountString = floDataCount.toString(16);
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floDataCountString = "0" + floDataCountString;
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} else if (floDataCount < 253) {
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floDataCountString = floDataCount.toString(16);
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} else if (floDataCount <= 1040) {
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let floDataCountAdjusted = (floDataCount - 253) + parseInt("0xfd00fd");
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let floDataCountStringAdjusted = floDataCountAdjusted.toString(16);
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floDataCountString = floDataCountStringAdjusted.substr(0, 2) + floDataCountStringAdjusted.substr(4, 2) + floDataCountStringAdjusted.substr(2, 2);
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} else {
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floDataCountString = "Character Limit Exceeded";
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}
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//flochange -- append floData field
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buffer = buffer.concat(bitjs.numToVarInt(this.floData.length));
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buffer = buffer.concat(bitjs.strToBytes(this.floData))
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return Crypto.util.bytesToHex(buffer) + floDataCountString + flohex; // flochange -- Addition of floDataCountString and floData in serialization
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return Crypto.util.bytesToHex(buffer);
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}
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/* deserialize a transaction */
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function deserialize(buffer) {
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if (typeof buffer == "string") {
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buffer = Crypto.util.hexToBytes(buffer)
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}
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var pos = 0;
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var readAsInt = function (bytes) {
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if (bytes == 0) return 0;
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pos++;
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return buffer[pos - 1] + readAsInt(bytes - 1) * 256;
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}
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var readVarInt = function () {
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pos++;
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if (buffer[pos - 1] < 253) {
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return buffer[pos - 1];
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}
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return readAsInt(buffer[pos - 1] - 251);
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}
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var readBytes = function (bytes) {
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pos += bytes;
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return buffer.slice(pos - bytes, pos);
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}
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var readVarString = function () {
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var size = readVarInt();
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return readBytes(size);
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}
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var bytesToStr = function (bytes) {
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return bytes.map(b => String.fromCharCode(b)).join('');
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}
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const self = btrx;
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self.version = readAsInt(4);
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var ins = readVarInt();
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for (var i = 0; i < ins; i++) {
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self.inputs.push({
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outpoint: {
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hash: Crypto.util.bytesToHex(readBytes(32).reverse()),
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index: readAsInt(4)
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},
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script: readVarString(),
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sequence: readAsInt(4)
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});
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}
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var outs = readVarInt();
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for (var i = 0; i < outs; i++) {
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self.outputs.push({
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value: bitjs.bytesToNum(readBytes(8)),
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script: readVarString()
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});
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}
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self.lock_time = readAsInt(4);
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//flochange - floData field
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self.floData = bytesToStr(readVarString());
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return self;
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}
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//deserialize the data if passed
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if (tx_data)
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deserialize(tx_data);
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return btrx;
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@ -4856,6 +5104,36 @@
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else return bytes[0] + 256 * bitjs.bytesToNum(bytes.slice(1));
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}
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//flochange - adding fn to convert string (for flodata) to byte
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bitjs.strToBytes = function (str) {
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return str.split('').map(c => c.charCodeAt(0));
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}
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/* decompress an compressed public key */
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bitjs.pubkeydecompress = function (pubkey) {
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if ((typeof (pubkey) == 'string') && pubkey.match(/^[a-f0-9]+$/i)) {
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var curve = EllipticCurve.getSECCurveByName("secp256k1");
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try {
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var pt = curve.curve.decodePointHex(pubkey);
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var x = pt.getX().toBigInteger();
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var y = pt.getY().toBigInteger();
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var publicKeyBytes = EllipticCurve.integerToBytes(x, 32);
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publicKeyBytes = publicKeyBytes.concat(EllipticCurve.integerToBytes(y, 32));
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publicKeyBytes.unshift(0x04);
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return Crypto.util.bytesToHex(publicKeyBytes);
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} catch (e) {
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// console.log(e);
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return false;
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}
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}
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return false;
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}
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bitjs.verifySignature = function (hash, sig, pubkey) {
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return Bitcoin.ECDSA.verify(hash, sig, pubkey);
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}
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/* clone an object */
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bitjs.clone = function (obj) {
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if (obj == null || typeof (obj) != 'object') return obj;
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@ -5020,17 +5298,26 @@
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|
||||
//https://raw.github.com/bitcoinjs/bitcoinjs-lib/09e8c6e184d6501a0c2c59d73ca64db5c0d3eb95/src/address.js
|
||||
Bitcoin.Address = function (bytes) {
|
||||
if (GLOBAL.cryptocoin == "FLO")
|
||||
this.version = 0x23; // FLO mainnet public address
|
||||
else if (GLOBAL.cryptocoin == "FLO_TEST")
|
||||
this.version = 0x73; // FLO testnet public address
|
||||
if ("string" == typeof bytes) {
|
||||
bytes = Bitcoin.Address.decodeString(bytes, this.version);
|
||||
var d = Bitcoin.Address.decodeString(bytes);
|
||||
bytes = d.hash;
|
||||
if (GLOBAL.cryptocoin == "FLO" && (d.version == Bitcoin.Address.standardVersion || d.version == Bitcoin.Address.multisigVersion))
|
||||
this.version = d.version;
|
||||
else if (GLOBAL.cryptocoin == "FLO_TEST" && d.version == Bitcoin.Address.testnetVersion)
|
||||
this.version = d.version;
|
||||
else throw "Version (prefix) " + d.version + " not supported!";
|
||||
} else {
|
||||
if (GLOBAL.cryptocoin == "FLO")
|
||||
this.version = Bitcoin.Address.standardVersion;
|
||||
else if (GLOBAL.cryptocoin == "FLO_TEST")
|
||||
this.version = Bitcoin.Address.testnetVersion; // FLO testnet public address
|
||||
}
|
||||
this.hash = bytes;
|
||||
};
|
||||
|
||||
Bitcoin.Address.networkVersion = 0x23; // (FLO mainnet 0x23, 35D), (Bitcoin Mainnet, 0x00, 0D) // *this has no effect *
|
||||
Bitcoin.Address.standardVersion = 0x23; // (FLO mainnet 0x23, 35D), (Bitcoin Mainnet, 0x00, 0D)
|
||||
Bitcoin.Address.multisigVersion = 0x5e; // (FLO multisig 0x5e, 94D)
|
||||
Bitcoin.Address.testnetVersion = 0x73; // (FLO testnet 0x73, 115D)
|
||||
|
||||
/**
|
||||
* Serialize this object as a standard Bitcoin address.
|
||||
@ -5059,7 +5346,7 @@
|
||||
/**
|
||||
* Parse a Bitcoin address contained in a string.
|
||||
*/
|
||||
Bitcoin.Address.decodeString = function (string, version) {
|
||||
Bitcoin.Address.decodeString = function (string) {
|
||||
var bytes = Bitcoin.Base58.decode(string);
|
||||
var hash = bytes.slice(0, 21);
|
||||
var checksum = Crypto.SHA256(Crypto.SHA256(hash, {
|
||||
@ -5075,11 +5362,12 @@
|
||||
throw "Checksum validation failed!";
|
||||
}
|
||||
|
||||
if (version != hash.shift()) {
|
||||
/*if (version != hash.shift()) {
|
||||
throw "Version " + hash.shift() + " not supported!";
|
||||
}
|
||||
}*/
|
||||
|
||||
return hash;
|
||||
var version = hash.shift();
|
||||
return { version, hash };
|
||||
};
|
||||
//https://raw.github.com/bitcoinjs/bitcoinjs-lib/e90780d3d3b8fc0d027d2bcb38b80479902f223e/src/ecdsa.js
|
||||
Bitcoin.ECDSA = (function () {
|
||||
@ -6488,6 +6776,7 @@
|
||||
return {
|
||||
'address': address,
|
||||
'redeemScript': r.redeemScript,
|
||||
'scripthash': Crypto.util.bytesToHex(program),
|
||||
'size': r.size
|
||||
};
|
||||
}
|
||||
@ -6581,15 +6870,16 @@
|
||||
};
|
||||
}
|
||||
|
||||
coinjs.multisigBech32Address = function (raw_redeemscript) {
|
||||
var program = Crypto.SHA256(Crypto.util.hexToBytes(raw_redeemscript), {
|
||||
coinjs.multisigBech32Address = function (redeemscript) {
|
||||
var program = Crypto.SHA256(Crypto.util.hexToBytes(redeemscript), {
|
||||
asBytes: true
|
||||
});
|
||||
var address = coinjs.bech32_encode(coinjs.bech32.hrp, [coinjs.bech32.version].concat(coinjs.bech32_convert(program, 8, 5, true)));
|
||||
return {
|
||||
'address': address,
|
||||
'type': 'multisigBech32',
|
||||
'redeemscript': Crypto.util.bytesToHex(program)
|
||||
'redeemScript': redeemscript,
|
||||
'scripthash': Crypto.util.bytesToHex(program)
|
||||
};
|
||||
}
|
||||
|
||||
@ -7587,7 +7877,7 @@
|
||||
var n = u.getElementsByTagName("tx_output_n")[0].childNodes[0].nodeValue;
|
||||
var scr = script || u.getElementsByTagName("script")[0].childNodes[0].nodeValue;
|
||||
|
||||
if (segwit) { //also for MULTISIG_BECH32 (p2wsh-multisig)(script = raw_redeemscript; for p2wsh-multisig)
|
||||
if (segwit) { //also for MULTISIG_BECH32 (p2wsh-multisig)(script = redeemscript; for p2wsh-multisig)
|
||||
/* this is a small hack to include the value with the redeemscript to make the signing procedure smoother.
|
||||
It is not standard and removed during the signing procedure. */
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user