mirror of
https://github.com/ok2/coinbin.git
synced 2026-05-09 18:15:23 +02:00
first stage of adding bech32 support added to coinb.in
This commit is contained in:
OutCast3k
+183
-14
@@ -14,6 +14,7 @@
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coinjs.priv = 0x80;
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coinjs.multisig = 0x05;
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coinjs.hdkey = {'prv':0x0488ade4, 'pub':0x0488b21e};
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coinjs.bech32 = {'charset':'qpzry9x8gf2tvdw0s3jn54khce6mua7l', 'version':0, 'hrp':'bc'};
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coinjs.compressed = false;
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@@ -184,6 +185,24 @@
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return {'address':address, 'type':'segwit', 'redeemscript':Crypto.util.bytesToHex(keyhash)};
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}
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/* create a new segwit bech32 encoded address */
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coinjs.bech32Address = function(pubkey){
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var program = ripemd160(Crypto.SHA256(Crypto.util.hexToBytes(pubkey), {asBytes: true}), {asBytes: true});
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var address = coinjs.bech32_encode(coinjs.bech32.hrp, [coinjs.bech32.version].concat(coinjs.bech32_convert(program, 8, 5, true)));
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return {'address':address, 'type':'bech32', 'redeemscript':Crypto.util.bytesToHex(program)};
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}
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/* extract the redeemscript from a bech32 address */
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coinjs.bech32redeemscript = function(address){
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var r = false;
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var decode = coinjs.bech32_decode(address);
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if(decode){
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decode.data.shift();
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return Crypto.util.bytesToHex(coinjs.bech32_convert(decode.data, 5, 8, true));
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}
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return r;
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}
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/* provide a privkey and return an WIF */
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coinjs.privkey2wif = function(h){
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var r = Crypto.util.hexToBytes(h);
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@@ -286,7 +305,12 @@
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return false;
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}
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} catch(e) {
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return false;
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bech32rs = coinjs.bech32redeemscript(addr);
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if(bech32rs){
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return {'type':'bech32', 'redeemscript':bech32rs};
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} else {
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return false;
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}
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}
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}
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@@ -316,6 +340,126 @@
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return false;
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}
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coinjs.bech32_polymod = function(values) {
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var chk = 1;
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var BECH32_GENERATOR = [0x3b6a57b2, 0x26508e6d, 0x1ea119fa, 0x3d4233dd, 0x2a1462b3];
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for (var p = 0; p < values.length; ++p) {
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var top = chk >> 25;
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chk = (chk & 0x1ffffff) << 5 ^ values[p];
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for (var i = 0; i < 5; ++i) {
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if ((top >> i) & 1) {
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chk ^= BECH32_GENERATOR[i];
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}
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}
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}
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return chk;
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}
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coinjs.bech32_hrpExpand = function(hrp) {
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var ret = [];
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var p;
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for (p = 0; p < hrp.length; ++p) {
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ret.push(hrp.charCodeAt(p) >> 5);
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}
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ret.push(0);
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for (p = 0; p < hrp.length; ++p) {
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ret.push(hrp.charCodeAt(p) & 31);
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}
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return ret;
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}
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coinjs. bech32_verifyChecksum = function(hrp, data) {
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return coinjs.bech32_polymod(coinjs.bech32_hrpExpand(hrp).concat(data)) === 1;
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}
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coinjs.bech32_createChecksum = function(hrp, data) {
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var values = coinjs.bech32_hrpExpand(hrp).concat(data).concat([0, 0, 0, 0, 0, 0]);
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var mod = coinjs.bech32_polymod(values) ^ 1;
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var ret = [];
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for (var p = 0; p < 6; ++p) {
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ret.push((mod >> 5 * (5 - p)) & 31);
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}
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return ret;
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}
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coinjs.bech32_encode = function(hrp, data) {
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var combined = data.concat(coinjs.bech32_createChecksum(hrp, data));
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var ret = hrp + '1';
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for (var p = 0; p < combined.length; ++p) {
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ret += coinjs.bech32.charset.charAt(combined[p]);
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}
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return ret;
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}
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coinjs.bech32_decode = function(bechString) {
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var p;
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var has_lower = false;
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var has_upper = false;
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for (p = 0; p < bechString.length; ++p) {
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if (bechString.charCodeAt(p) < 33 || bechString.charCodeAt(p) > 126) {
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return null;
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}
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if (bechString.charCodeAt(p) >= 97 && bechString.charCodeAt(p) <= 122) {
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has_lower = true;
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}
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if (bechString.charCodeAt(p) >= 65 && bechString.charCodeAt(p) <= 90) {
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has_upper = true;
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}
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}
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if (has_lower && has_upper) {
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return null;
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}
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bechString = bechString.toLowerCase();
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var pos = bechString.lastIndexOf('1');
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if (pos < 1 || pos + 7 > bechString.length || bechString.length > 90) {
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return null;
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}
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var hrp = bechString.substring(0, pos);
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var data = [];
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for (p = pos + 1; p < bechString.length; ++p) {
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var d = coinjs.bech32.charset.indexOf(bechString.charAt(p));
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if (d === -1) {
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return null;
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}
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data.push(d);
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}
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if (!coinjs.bech32_verifyChecksum(hrp, data)) {
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return null;
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}
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return {
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hrp: hrp,
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data: data.slice(0, data.length - 6)
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};
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}
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coinjs.bech32_convert = function(data, inBits, outBits, pad) {
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var value = 0;
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var bits = 0;
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var maxV = (1 << outBits) - 1;
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var result = [];
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for (var i = 0; i < data.length; ++i) {
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value = (value << inBits) | data[i];
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bits += inBits;
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while (bits >= outBits) {
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bits -= outBits;
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result.push((value >> bits) & maxV);
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}
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}
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if (pad) {
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if (bits > 0) {
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result.push((value << (outBits - bits)) & maxV);
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}
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} else {
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if (bits >= inBits) throw new Error('Excess padding');
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if ((value << (outBits - bits)) & maxV) throw new Error('Non-zero padding');
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}
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return result;
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}
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coinjs.testdeterministicK = function() {
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// https://github.com/bitpay/bitcore/blob/9a5193d8e94b0bd5b8e7f00038e7c0b935405a03/test/crypto/ecdsa.js
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// Line 21 and 22 specify digest hash and privkey for the first 2 test vectors.
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@@ -728,7 +872,10 @@
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r.spendToScript = function(address){
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var addr = coinjs.addressDecode(address);
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var s = coinjs.script();
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if(addr.version==coinjs.multisig){ // multisig address
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if(addr.type == "bech32"){
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s.writeOp(0);
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s.writeBytes(Crypto.util.hexToBytes(addr.redeemscript));
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} else if(addr.version==coinjs.multisig){ // multisig address
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s.writeOp(169); //OP_HASH160
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s.writeBytes(addr.bytes);
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s.writeOp(135); //OP_EQUAL
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@@ -1043,20 +1190,24 @@
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return {'result':0, 'fail':'redeemscript', 'response':'redeemscript missing or not valid for segwit'};
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}
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var scriptcode = Crypto.util.hexToBytes(extract['script']);
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if(scriptcode[0] != 0){
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return {'result':0, 'fail':'scriptcode', 'response':'redeemscript is not valid'};
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}
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if(extract['value'] == -1){
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return {'result':0, 'fail':'value', 'response':'unable to generate a valid segwit hash without a value'};
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}
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var scriptcode = Crypto.util.hexToBytes(extract['script']);
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// end of redeem script check
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scriptcode = scriptcode.slice(1);
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scriptcode.unshift(25, 118, 169);
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scriptcode.push(136, 172);
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/* P2WPKH */
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if(scriptcode.length == 20){
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scriptcode = [0x00,0x14].concat(scriptcode);
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}
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if(scriptcode.length == 22){
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scriptcode = scriptcode.slice(1);
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scriptcode.unshift(25, 118, 169);
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scriptcode.push(136, 172);
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}
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var value = coinjs.numToBytes(extract['value'], 8);
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@@ -1137,7 +1288,17 @@
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} else if(this.ins[index].script.chunks.length == 5 && this.ins[index].script.chunks[1] == 177){//OP_CHECKLOCKTIMEVERIFY
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// hodl script (not signed)
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return {'type':'hodl', 'signed':'false', 'signatures': 0, 'script': Crypto.util.bytesToHex(this.ins[index].script.buffer)};
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} else if((this.ins[index].script.chunks.length <= 3 && this.ins[index].script.chunks.length > 0) && this.ins[index].script.chunks[0].length == 22 && this.ins[index].script.chunks[0][0] == 0){
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} else if((this.ins[index].script.chunks.length <= 3 && this.ins[index].script.chunks.length > 0) && ((this.ins[index].script.chunks[0].length == 22 && this.ins[index].script.chunks[0][0] == 0) || (this.ins[index].script.chunks[0].length == 20 && this.ins[index].script.chunks[1] == 0))){
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var signed = ((this.witness[index]) && this.witness[index].length==2) ? 'true' : 'false';
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var sigs = (signed == 'true') ? 1 : 0;
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var value = -1; // no value found
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if((this.ins[index].script.chunks[2]) && this.ins[index].script.chunks[2].length==8){
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value = coinjs.bytesToNum(this.ins[index].script.chunks[2]); // value found encoded in transaction (THIS IS NON STANDARD)
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}
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return {'type':'segwit', 'signed':signed, 'signatures': sigs, 'script': Crypto.util.bytesToHex(this.ins[index].script.chunks[0]), 'value': value};
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/* } else if((this.ins[index].script.chunks.length <= 3 && this.ins[index].script.chunks.length > 0) && (this.ins[index].script.chunks[0].length == 22 && this.ins[index].script.chunks[0][0] == 0)){
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alert('p2sh');
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// segwit script
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var signed = ((this.witness[index]) && this.witness[index].length==2) ? 'true' : 'false';
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var sigs = (signed == 'true') ? 1 : 0;
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@@ -1146,6 +1307,7 @@
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value = coinjs.bytesToNum(this.ins[index].script.chunks[2]); // value found encoded in transaction (THIS IS NON STANDARD)
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}
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return {'type':'segwit', 'signed':signed, 'signatures': sigs, 'script': Crypto.util.bytesToHex(this.ins[index].script.chunks[0]), 'value': value};
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*/
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} 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
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// multisig script, with signature(s) included
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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])};
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@@ -1367,13 +1529,16 @@
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var wif2 = coinjs.wif2pubkey(wif);
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var segwit = coinjs.segwitAddress(wif2['pubkey']);
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var bech32 = coinjs.bech32Address(wif2['pubkey']);
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if(segwit['redeemscript'] == Crypto.util.bytesToHex(this.ins[index].script.chunks[0])){
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if((segwit['redeemscript'] == Crypto.util.bytesToHex(this.ins[index].script.chunks[0])) || (bech32['redeemscript'] == Crypto.util.bytesToHex(this.ins[index].script.chunks[0]))){
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var txhash = this.transactionHashSegWitV0(index, shType);
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if(txhash.result == 1){
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var segwitHash = Crypto.util.hexToBytes(txhash.hash);
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var signature = this.transactionSig(index, wif, shType, segwitHash);
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// remove any non standard data we store, i.e. input value
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var script = coinjs.script();
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script.writeBytes(this.ins[index].script.chunks[0]);
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@@ -1396,9 +1561,13 @@
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for(var y = 0; y < this.witness.length; y++){
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if(!witness_used.includes(y)){
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var sw = coinjs.segwitAddress(this.witness[y][1]);
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if(sw['redeemscript'] == Crypto.util.bytesToHex(this.ins[i].script.chunks[0])){
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var b32 = coinjs.bech32Address(this.witness[y][1]);
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if((sw['redeemscript'] == Crypto.util.bytesToHex(this.ins[i].script.chunks[0])) || (b32['redeemscript'] == Crypto.util.bytesToHex(this.ins[i].script.chunks[0]))){
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witness_order.push(this.witness[y]);
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witness_used.push(y);
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if(b32['redeemscript'] == Crypto.util.bytesToHex(this.ins[i].script.chunks[0])){
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this.ins[index].script = coinjs.script();
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}
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break;
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}
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}
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