RanchiMall/fcoin
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more hd optimization.

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This commit is contained in:
Christopher Jeffrey 2016-02-23 19:35:47 -08:00
parent ebee3965f7
commit 3804c2ea74
1 changed files with 41 additions and 31 deletions
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72
lib/bcoin/hd.js
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@ -662,25 +662,31 @@ HDPrivateKey.prototype._unbuild = function _unbuild(xkey) {
else else
this.network = 'testnet'; this.network = 'testnet';
this.xprivkey = xkey;
return data; return data;
}; };
HDPrivateKey.prototype._build = function _build(data) { HDPrivateKey.prototype._build = function _build(data) {
var sequence = new Buffer(82);
var off = 0; var off = 0;
var checksum; var sequence, checksum;
off += utils.copy(data.version, sequence, off); if (!this.xprivkey) {
off += utils.copy(data.depth, sequence, off); sequence = new Buffer(82);
off += utils.copy(data.parentFingerPrint, sequence, off); off += utils.copy(data.version, sequence, off);
off += utils.copy(data.childIndex, sequence, off); off += utils.copy(data.depth, sequence, off);
off += utils.copy(data.chainCode, sequence, off); off += utils.copy(data.parentFingerPrint, sequence, off);
off += utils.writeU8(sequence, 0, off); off += utils.copy(data.childIndex, sequence, off);
off += utils.copy(data.privateKey, sequence, off); off += utils.copy(data.chainCode, sequence, off);
assert(off === 78, off); off += utils.writeU8(sequence, 0, off);
checksum = utils.dsha256(sequence.slice(0, off)).slice(0, 4); off += utils.copy(data.privateKey, sequence, off);
off += utils.copy(checksum, sequence, off); assert(off === 78, off);
assert(off === 82, off); checksum = utils.dsha256(sequence.slice(0, off)).slice(0, 4);
off += utils.copy(checksum, sequence, off);
assert(off === 82, off);
this.xprivkey = utils.toBase58(sequence);
}
this.version = data.version; this.version = data.version;
this.depth = data.depth; this.depth = data.depth;
@ -694,7 +700,6 @@ HDPrivateKey.prototype._build = function _build(data) {
this.fingerPrint = null; this.fingerPrint = null;
this.hdPrivateKey = this; this.hdPrivateKey = this;
this.xprivkey = utils.toBase58(sequence);
this.hdPublicKey = new HDPublicKey({ this.hdPublicKey = new HDPublicKey({
network: this.network, network: this.network,
@ -1026,29 +1031,35 @@ HDPublicKey.prototype._unbuild = function _unbuild(xkey) {
else else
this.network = 'testnet'; this.network = 'testnet';
this.xpubkey = xkey;
return data; return data;
}; };
HDPublicKey.prototype._build = function _build(data) { HDPublicKey.prototype._build = function _build(data) {
var sequence = new Buffer(82);
var off = 0; var off = 0;
var checksum; var sequence, checksum;
off += utils.copy(data.version, sequence, off); if (!this.xpubkey) {
off += utils.copy(data.depth, sequence, off); sequence = new Buffer(82);
off += utils.copy(data.parentFingerPrint, sequence, off); off += utils.copy(data.version, sequence, off);
off += utils.copy(data.childIndex, sequence, off); off += utils.copy(data.depth, sequence, off);
off += utils.copy(data.chainCode, sequence, off); off += utils.copy(data.parentFingerPrint, sequence, off);
off += utils.copy(data.publicKey, sequence, off); off += utils.copy(data.childIndex, sequence, off);
assert(off === 78, off); off += utils.copy(data.chainCode, sequence, off);
checksum = utils.dsha256(sequence.slice(0, off)).slice(0, 4); off += utils.copy(data.publicKey, sequence, off);
off += utils.copy(checksum, sequence, off); assert(off === 78, off);
assert(off === 82, off); checksum = utils.dsha256(sequence.slice(0, off)).slice(0, 4);
off += utils.copy(checksum, sequence, off);
assert(off === 82, off);
if (!data.checksum || !data.checksum.length) if (!data.checksum || !data.checksum.length)
data.checksum = checksum; data.checksum = checksum;
else if (utils.toHex(checksum) !== utils.toHex(data.checksum)) else if (utils.toHex(checksum) !== utils.toHex(data.checksum))
throw new Error('checksum mismatch'); throw new Error('checksum mismatch');
this.xpubkey = utils.toBase58(sequence);
}
this.version = data.version; this.version = data.version;
this.depth = data.depth; this.depth = data.depth;
@ -1062,7 +1073,6 @@ HDPublicKey.prototype._build = function _build(data) {
this.fingerPrint = null; this.fingerPrint = null;
this.hdPublicKey = this; this.hdPublicKey = this;
this.xpubkey = utils.toBase58(sequence);
this.hdPrivateKey = null; this.hdPrivateKey = null;
this.xprivkey = null; this.xprivkey = null;