kaizenkodo/CoinBin
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Use HMAC SHA-256 with configurable amount of rounds to generate seed for HD wallet, also show the generated seed in WIF format.

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This commit is contained in:
Kiyomichi Kosaka
2021-04-05 18:15:33 +02:00
parent 9a0175e18f
commit 2b6de3edef
3 changed files with 43 additions and 6 deletions
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js/coin.js
+21 -2
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@@ -608,6 +608,7 @@
r.parent_fingerprint = bytes.slice(5, 9);
r.child_index = coinjs.uint(bytes.slice(9, 13), 4);
r.chain_code = bytes.slice(13, 45);
r.seed_wif = '';
r.key_bytes = bytes.slice(45, 78);
var c = coinjs.compressed; // get current default
@@ -742,8 +743,23 @@
}
// make a master hd xprv/xpub
r.master = function(pass) {
var seed = (pass) ? Crypto.SHA256(pass) : coinjs.newPrivkey();
r.master = function(pass, iters) {
if (pass) {
var seed_iters = (iters) ? Math.abs(iters * 1) : 0;
if (seed_iters == 0) {
var seed = Crypto.SHA256(pass);
} else {
var seed = Crypto.util.hexToBytes("0000000000000000000000000000000000000000000000000000000000000000");
for (var i = 0; i < seed_iters; i++) {
seed = Crypto.HMAC(Crypto.SHA256, seed, pass, { asBytes: true });
}
seed = Crypto.util.bytesToHex(seed);
}
} else {
var seed = coinjs.newPrivkey();
}
var seed_wif = coinjs.privkey2wif(seed);
var hasher = new jsSHA(seed, 'HEX');
var I = hasher.getHMAC("Bitcoin seed", "TEXT", "SHA-512", "HEX");
@@ -755,6 +771,7 @@
'parent_fingerprint':[0,0,0,0],
'child_index':0,
'chain_code':chain,
'seed_wif':seed_wif,
'privkey':I.slice(0, 64),
'pubkey':coinjs.newPubkey(I.slice(0, 64))});
}
@@ -799,6 +816,8 @@
var ret = pub.concat(checksum);
o.pubkey = coinjs.base58encode(ret);
}
o.seed_wif = data.seed_wif;
return o;
}
js/coinbin.js
+6 -3
View File
@@ -570,18 +570,20 @@ $(document).ready(function() {
$("#newHDKeysBtn").click(function(){
coinjs.compressed = true;
var s = ($("#newHDBrainwallet").is(":checked")) ? $("#HDBrainwallet").val() : null;
var siters = ($("#newHDBrainwallet").is(":checked")) ? $("#HDBrainwalletIters").val()*1 : null;
var hd = coinjs.hd();
var pair = hd.master(s);
var pair = hd.master(s, siters);
$("#newHDxpub").val(pair.pubkey);
$("#newHDxprv").val(pair.privkey);
$("#newHDseed").val(pair.seed_wif);
});
$("#newHDBrainwallet").click(function(){
if($(this).is(":checked")){
$("#HDBrainwallet").removeClass("hidden");
$("#HDBrainwalletInput").removeClass("hidden");
} else {
$("#HDBrainwallet").addClass("hidden");
$("#HDBrainwalletInput").addClass("hidden");
}
});
@@ -1681,6 +1683,7 @@ $(document).ready(function() {
if(hex == hex_cmp_prv || hex == hex_cmp_pub){
var hd = coinjs.hd(s);
$("#verifyHDaddress .hdKey").html(s);
$("#verifyHDaddress .seed_wif").val(hd.seed_wif);
$("#verifyHDaddress .chain_code").val(Crypto.util.bytesToHex(hd.chain_code));
$("#verifyHDaddress .depth").val(hd.depth);
$("#verifyHDaddress .version").val('0x'+(hd.version).toString(16));