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add tests for BIP32

This commit is contained in:
Manuel Araoz 2014-04-29 14:37:37 -03:00
parent 6cf690afcc
commit ac719345e8
3 changed files with 33 additions and 20 deletions
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2
Gruntfile.js
View File

@ -26,7 +26,7 @@ module.exports = function(grunt) {
tasks: ['markdown']
},
scripts: {
files: ['**/*.js', '**/*.html', '!**/node_modules/**', '!browser/bundle.js', '!browser/testdata.js', '!browser/vendor-bundle.js'],
files: ['**/*.js', '**/*.html', '!**/node_modules/**', '!browser/bundle.js', '!browser/testdata.js', '!browser/vendor-bundle.js', '!docs/**'],
tasks: ['shell'],
},
},

39
lib/BIP32.js
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@ -7,8 +7,8 @@ var SecureRandom = imports.SecureRandom || require('./SecureRandom');
var bignum = imports.bignum || require('./Bignum');
var networks = require('../networks');
var secp256k1_n = new bignum("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141", 16);
var secp256k1_Gx = new bignum("79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798", 16);
var secp256k1_n = new bignum('FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141', 16);
var secp256k1_Gx = new bignum('79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798', 16);
/*
random new BIP32: new BIP32();
@ -20,9 +20,9 @@ var BIP32 = function(bytes) {
bytes = 'livenet';
this.version = networks['livenet'].bip32privateVersion;
}
else if (bytes == 'testnet')
else if (bytes == 'testnet') {
this.version = networks['testnet'].bip32privateVersion;
}
if (bytes == 'livenet' || bytes == 'testnet') {
this.depth = 0x00;
this.parentFingerprint = new Buffer([0, 0, 0, 0]);
@ -37,7 +37,7 @@ var BIP32 = function(bytes) {
}
// decode base58
if (typeof bytes === "string") {
if (typeof bytes === 'string') {
var decoded = base58.decode(bytes);
if (decoded.length != 82)
throw new Error('Not enough data, expected 82 and received '+decoded.length);
@ -47,7 +47,7 @@ var BIP32 = function(bytes) {
var hash = coinUtil.sha256(coinUtil.sha256(bytes));
if (hash[0] != checksum[0] || hash[1] != checksum[1] || hash[2] != checksum[2] || hash[3] != checksum[3]) {
throw new Error("Invalid checksum");
throw new Error('Invalid checksum');
}
}
@ -63,7 +63,7 @@ BIP32.seed = function(bytes, network) {
bytes = new Buffer(bytes, 'hex'); //if not buffer, assume hex
if (bytes.length < 128/8)
return false; //need more entropy
var hash = coinUtil.sha512hmac(bytes, new Buffer("Bitcoin seed"));
var hash = coinUtil.sha512hmac(bytes, new Buffer('Bitcoin seed'));
var bip32 = new BIP32(null);
bip32.depth = 0x00;
@ -85,7 +85,7 @@ BIP32.seed = function(bytes, network) {
BIP32.prototype.initFromBytes = function(bytes) {
// Both pub and private extended keys are 78 bytes
if(bytes.length != 78) throw new Error("not enough data");
if(bytes.length != 78) throw new Error('not enough data');
this.version = u32(bytes.slice(0, 4));
this.depth = u8(bytes.slice(4, 5));
@ -116,7 +116,7 @@ BIP32.prototype.initFromBytes = function(bytes) {
this.pubKeyHash = coinUtil.sha256ripe160(this.eckey.public);
this.hasPrivateKey = false;
} else {
throw new Error("Invalid key");
throw new Error('Invalid key');
}
this.buildExtendedPublicKey();
@ -137,7 +137,7 @@ BIP32.prototype.buildExtendedPublicKey = function() {
v = networks['testnet'].bip32publicVersion;
break;
default:
throw new Error("Unknown version");
throw new Error('Unknown version');
}
// Version
@ -158,15 +158,16 @@ BIP32.prototype.buildExtendedPublicKey = function() {
}
BIP32.prototype.extendedPublicKeyString = function(format) {
if (format === undefined || format === "base58") {
if (format === undefined || format === 'base58') {
var hash = coinUtil.sha256(coinUtil.sha256(this.extendedPublicKey));
var checksum = hash.slice(0, 4);
var data = Buffer.concat([this.extendedPublicKey, checksum]);
return base58.encode(data);
} else if (format === "hex") {
} else if (format === 'hex') {
alert('calc'+this.extendedPublicKey.toString('hex'));
return this.extendedPublicKey.toString('hex');;
} else {
throw new Error("bad format");
throw new Error('bad format');
}
}
@ -194,15 +195,15 @@ BIP32.prototype.buildExtendedPrivateKey = function() {
}
BIP32.prototype.extendedPrivateKeyString = function(format) {
if (format === undefined || format === "base58") {
if (format === undefined || format === 'base58') {
var hash = coinUtil.sha256(coinUtil.sha256(this.extendedPrivateKey));
var checksum = hash.slice(0, 4);
var data = Buffer.concat([this.extendedPrivateKey, checksum]);
return base58.encode(data);
} else if (format === "hex") {
} else if (format === 'hex') {
return this.extendedPrivateKey.toString('hex');
} else {
throw new Error("bad format");
throw new Error('bad format');
}
}
@ -219,7 +220,7 @@ BIP32.prototype.derive = function(path) {
var c = e[i];
if (i == 0 ) {
if (c != 'm') throw new Error("invalid path");
if (c != 'm') throw new Error('invalid path');
continue;
}
@ -250,7 +251,7 @@ BIP32.prototype.deriveChild = function(i) {
this.version == networks['testnet'].bip32privateVersion );
if (usePrivate && (!this.hasPrivateKey || !isPrivate))
throw new Error("Cannot do private key derivation without private key");
throw new Error('Cannot do private key derivation without private key');
var ret = null;
if (this.hasPrivateKey) {
@ -323,7 +324,7 @@ BIP32.prototype.deriveChild = function(i) {
function uint(f, size) {
if (f.length < size)
throw new Error("not enough data");
throw new Error('not enough data');
var n = 0;
for (var i = 0; i < size; i++) {
n *= 256;

12
test/test.BIP32.js
View File

@ -291,7 +291,19 @@ describe('BIP32', function() {
bip32.extendedPrivateKeyString().should.equal(vector2_m_private);
bip32.extendedPublicKeyString().should.equal(vector2_m_public);
});
});
describe('testnet', function() {
it('should initialize a new BIP32 correctly from a random BIP32', function() {
var b1 = new BIP32('testnet');
var b2 = new BIP32(b1.extendedPublicKeyString());
b2.extendedPublicKeyString().should.equal(b1.extendedPublicKeyString());
});
it('should generate valid ext pub key for testnet', function() {
var b = new BIP32('testnet');
b.extendedPublicKeyString().substring(0,4).should.equal('tpub');
});
});
});