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integration: nonce is not shared

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This commit is contained in:
Daniel Cousens 2015-08-18 16:12:54 +10:00
parent 3bf4e27545
commit b56bbce472
2 changed files with 9 additions and 8 deletions
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6
README.md
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@ -98,9 +98,9 @@ The below examples are implemented as integration tests, they should be very eas
- [Create a 2-of-3 multisig P2SH address](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/multisig.js#L8) - [Create a 2-of-3 multisig P2SH address](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/multisig.js#L8)
- [Spend from a 2-of-4 multisig P2SH address](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/multisig.js#L22) - [Spend from a 2-of-4 multisig P2SH address](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/multisig.js#L22)
- [Generate a single-key stealth address](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/crypto.js#L7) - [Generate a single-key stealth address](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/crypto.js#L7)
- [Generate a dual-key stealth address](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/crypto.js#L51) - [Generate a dual-key stealth address](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/crypto.js#L52)
- [Recover a BIP32 parent private key from the parent public key and a derived non-hardened child private key](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/crypto.js#L53) - [Recover a BIP32 parent private key from the parent public key and a derived non-hardened child private key](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/crypto.js#L54)
- [Recover a Private key from duplicate R values in a signature](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/crypto.js#L100) - [Recover a Private key from duplicate R values in a signature](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/crypto.js#L101)
## Projects utilizing BitcoinJS ## Projects utilizing BitcoinJS

11
test/integration/crypto.js
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@ -12,8 +12,8 @@ describe('bitcoinjs-lib (crypto)', function () {
var G = bitcoin.ECPair.curve.G var G = bitcoin.ECPair.curve.G
var n = bitcoin.ECPair.curve.n var n = bitcoin.ECPair.curve.n
function stealthSend (Q, nonce) { function stealthSend (Q) {
var noncePair = new bitcoin.ECPair(bigi.fromBuffer(nonce)) var noncePair = bitcoin.ECPair.makeRandom()
var e = noncePair.d var e = noncePair.d
var eQ = Q.multiply(e) var eQ = Q.multiply(e)
var c = bigi.fromBuffer(bitcoin.crypto.sha256(eQ.getEncoded())) var c = bigi.fromBuffer(bitcoin.crypto.sha256(eQ.getEncoded()))
@ -38,10 +38,11 @@ describe('bitcoinjs-lib (crypto)', function () {
// receiver private key // receiver private key
var receiver = bitcoin.ECPair.fromWIF('5KYZdUEo39z3FPrtuX2QbbwGnNP5zTd7yyr2SC1j299sBCnWjss') var receiver = bitcoin.ECPair.fromWIF('5KYZdUEo39z3FPrtuX2QbbwGnNP5zTd7yyr2SC1j299sBCnWjss')
var nonce = crypto.randomBytes(32)
var stealthS = stealthSend(receiver.Q, nonce) var stealthS = stealthSend(receiver.Q) // public, done by sender
var stealthR = stealthReceive(receiver.d, stealthS.nonceQ) // ... sender now reveals nonceQ to receiver
var stealthR = stealthReceive(receiver.d, stealthS.nonceQ) // private, done by receiver
// and check that we derived both sides correctly // and check that we derived both sides correctly
assert.equal(stealthS.address, stealthR.keyPair.getAddress()) assert.equal(stealthS.address, stealthR.keyPair.getAddress())