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HDNode: remove unnecessary slice operation

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This commit is contained in:
Daniel Cousens 2014-06-04 14:36:06 +10:00
parent 15cc03a57f
commit 22f1dee65b
1 changed files with 4 additions and 5 deletions
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9
src/hdnode.js
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@ -105,17 +105,16 @@ HDNode.fromBuffer = function(buffer) {
// 33 bytes: the public key or private key data (0x02 + X or 0x03 + X for // 33 bytes: the public key or private key data (0x02 + X or 0x03 + X for
// public keys, 0x00 + k for private keys) // public keys, 0x00 + k for private keys)
var data = buffer.slice(45, 78)
var hd var hd
if (params.isPrivate) { if (params.isPrivate) {
assert.strictEqual(data.readUInt8(0), 0x00, 'Invalid private key') assert.strictEqual(buffer.readUInt8(45), 0x00, 'Invalid private key')
data = data.slice(1)
var data = buffer.slice(46, 78)
var D = BigInteger.fromBuffer(data) var D = BigInteger.fromBuffer(data)
hd = new HDNode(D, chainCode, params.network) hd = new HDNode(D, chainCode, params.network)
} else {
} else {
var data = buffer.slice(45, 78)
var decode = ECPointFp.decodeFrom(ecparams.getCurve(), data) var decode = ECPointFp.decodeFrom(ecparams.getCurve(), data)
assert.equal(decode.compressed, true, 'Invalid public key') assert.equal(decode.compressed, true, 'Invalid public key')