From 16120c11484441d0a63529acb2f471b98b733bbf Mon Sep 17 00:00:00 2001 From: Braydon Fuller Date: Thu, 20 Nov 2014 15:48:53 -0500 Subject: [PATCH] Stealth Addresses: Table stealth addresses until a later date. --- lib/expmt/stealthaddress.js | 127 ------------------------------ lib/expmt/stealthkey.js | 88 --------------------- lib/expmt/stealthmessage.js | 85 -------------------- lib/expmt/stealthtx.js | 69 ----------------- test/stealthaddress.js | 149 ------------------------------------ test/stealthkey.js | 138 --------------------------------- test/stealthmessage.js | 139 --------------------------------- test/stealthtx.js | 68 ---------------- 8 files changed, 863 deletions(-) delete mode 100644 lib/expmt/stealthaddress.js delete mode 100644 lib/expmt/stealthkey.js delete mode 100644 lib/expmt/stealthmessage.js delete mode 100644 lib/expmt/stealthtx.js delete mode 100644 test/stealthaddress.js delete mode 100644 test/stealthkey.js delete mode 100644 test/stealthmessage.js delete mode 100644 test/stealthtx.js diff --git a/lib/expmt/stealthaddress.js b/lib/expmt/stealthaddress.js deleted file mode 100644 index 6635167..0000000 --- a/lib/expmt/stealthaddress.js +++ /dev/null @@ -1,127 +0,0 @@ -var Stealthkey = require('./stealthkey'); -var Base58check = require('../base58check'); -var Pubkey = require('../pubkey'); -var KDF = require('../kdf'); -var BufferWriter = require('../bufferwriter'); -var BufferReader = require('../bufferreader'); - -var StealthAddress = function StealthAddress(addrstr) { - if (!(this instanceof StealthAddress)) - return new StealthAddress(addrstr); - - if (typeof addrstr === 'string') { - this.fromString(addrstr) - } - else if (Buffer.isBuffer(addrstr)) { - var buf = addrstr; - this.fromBuffer(buf); - } - else if (addrstr) { - var obj = addrstr; - this.set(obj); - } -}; - -StealthAddress.mainver = 42; -StealthAddress.testver = 43; - -StealthAddress.prototype.set = function(obj) { - this.payloadPubkey = obj.payloadPubkey || this.payloadPubkey; - this.scanPubkey = obj.scanPubkey || this.scanPubkey; - return this; -}; - -StealthAddress.prototype.fromJSON = function(json) { - this.fromString(json); - return this; -}; - -StealthAddress.prototype.toJSON = function() { - return this.toString(); -}; - -StealthAddress.prototype.fromStealthkey = function(stealthkey) { - this.set({ - payloadPubkey: stealthkey.payloadKeypair.pubkey, - scanPubkey: stealthkey.scanKeypair.pubkey - }); - return this; -}; - -StealthAddress.prototype.fromBuffer = function(buf) { - var parsed = StealthAddress.parseDWBuffer(buf); - if ((parsed.version !== StealthAddress.mainver) && (parsed.version !== StealthAddress.testver)) - throw new Error('Invalid version'); - if (parsed.options !== 0) - throw new Error('Invalid options'); - if (!parsed.scanPubkey) - throw new Error('Invalid scanPubkey'); - if (parsed.payloadPubkeys.length !== 1) - throw new Error('Must have exactly one payloadPubkey'); - if (parsed.nSigs !== 1) - throw new Error('Must require exactly one signature'); - if (parsed.prefix.toString() !== "") - throw new Error('Only blank prefixes supported'); - this.scanPubkey = parsed.scanPubkey; - this.payloadPubkey = parsed.payloadPubkeys[0]; - return this; -}; - -StealthAddress.prototype.fromString = function(str) { - return this.fromBuffer(Base58check(str).toBuffer()); -}; - -StealthAddress.prototype.getSharedKeypair = function(senderKeypair) { - var sharedSecretPoint = this.scanPubkey.point.mul(senderKeypair.privkey.bn); - var sharedSecretPubkey = Pubkey(sharedSecretPoint); - var buf = sharedSecretPubkey.toDER(true); - var sharedKeypair = KDF.sha256hmac2keypair(buf); - - return sharedKeypair; -}; - -StealthAddress.prototype.getReceivePubkey = function(senderKeypair) { - var sharedKeypair = this.getSharedKeypair(senderKeypair); - var pubkey = Pubkey(this.payloadPubkey.point.add(sharedKeypair.pubkey.point)); - - return pubkey; -}; - -StealthAddress.prototype.toBuffer = function(networkstr) { - if (networkstr === 'testnet') - var version = StealthAddress.testver; - else - var version = StealthAddress.mainver; - var bw = new BufferWriter(); - bw.writeUInt8(version); - bw.writeUInt8(0); //options - bw.write(this.scanPubkey.toDER(true)); - bw.writeUInt8(1); //number of payload keys - we only support 1 (not multisig) - bw.write(this.payloadPubkey.toDER(true)); - bw.writeUInt8(1); //number of signatures - we only support 1 (not multisig) - bw.writeUInt8(0); //prefix length - we do not support prefix yet - var buf = bw.concat(); - return buf; -}; - -StealthAddress.prototype.toString = function(networkstr) { - return Base58check(this.toBuffer(networkstr)).toString(); -}; - -StealthAddress.parseDWBuffer = function(buf) { - var br = new BufferReader(buf); - var parsed = {}; - parsed.version = br.readUInt8(); - parsed.options = br.readUInt8(); - parsed.scanPubkey = Pubkey().fromBuffer(br.read(33)); - parsed.nPayloadPubkeys = br.readUInt8(); - parsed.payloadPubkeys = []; - for (var i = 0; i < parsed.nPayloadPubkeys; i++) - parsed.payloadPubkeys.push(Pubkey().fromBuffer(br.read(33))); - parsed.nSigs = br.readUInt8(); - parsed.nPrefix = br.readUInt8(); - parsed.prefix = br.read(parsed.nPrefix / 8); - return parsed; -}; - -module.exports = StealthAddress; diff --git a/lib/expmt/stealthkey.js b/lib/expmt/stealthkey.js deleted file mode 100644 index 7cf4d0f..0000000 --- a/lib/expmt/stealthkey.js +++ /dev/null @@ -1,88 +0,0 @@ -var Keypair = require('../keypair'); -var Privkey = require('../privkey'); -var Pubkey = require('../pubkey'); -var Point = require('../point'); -var Hash = require('../hash'); -var KDF = require('../kdf'); - -var Stealthkey = function Stealthkey(payloadKeypair, scanKeypair) { - if (!(this instanceof Stealthkey)) - return new Stealthkey(payloadKeypair, scanKeypair); - - if (payloadKeypair instanceof Keypair) { - this.set({ - payloadKeypair: payloadKeypair, - scanKeypair: scanKeypair - }); - } - else if (payloadKeypair) { - var obj = payloadKeypair; - this.set(obj); - } -}; - -Stealthkey.prototype.set = function(obj) { - this.payloadKeypair = obj.payloadKeypair || this.payloadKeypair; - this.scanKeypair = obj.scanKeypair || this.scanKeypair; - return this; -}; - -Stealthkey.prototype.fromJSON = function(json) { - this.set({ - payloadKeypair: Keypair().fromJSON(json.payloadKeypair), - scanKeypair: Keypair().fromJSON(json.scanKeypair) - }); - return this; -}; - -Stealthkey.prototype.toJSON = function() { - return { - payloadKeypair: this.payloadKeypair.toJSON(), - scanKeypair: this.scanKeypair.toJSON() - }; -}; - -Stealthkey.prototype.fromRandom = function() { - this.payloadKeypair = Keypair().fromRandom(); - this.scanKeypair = Keypair().fromRandom(); - - return this; -}; - -Stealthkey.prototype.getSharedKeypair = function(senderPubkey) { - var sharedSecretPoint = senderPubkey.point.mul(this.scanKeypair.privkey.bn); - var sharedSecretPubkey = Pubkey({point: sharedSecretPoint}); - var buf = sharedSecretPubkey.toDER(true); - var sharedKeypair = KDF.sha256hmac2keypair(buf); - - return sharedKeypair; -}; - -Stealthkey.prototype.getReceivePubkey = function(senderPubkey) { - var sharedKeypair = this.getSharedKeypair(senderPubkey); - var pubkey = Pubkey({point: this.payloadKeypair.pubkey.point.add(sharedKeypair.pubkey.point)}); - - return pubkey; -}; - -Stealthkey.prototype.getReceiveKeypair = function(senderPubkey) { - var sharedKeypair = this.getSharedKeypair(senderPubkey); - var privkey = Privkey({bn: this.payloadKeypair.privkey.bn.add(sharedKeypair.privkey.bn).mod(Point.getN())}); - var key = Keypair({privkey: privkey}); - key.privkey2pubkey(); - - return key; -}; - -Stealthkey.prototype.isForMe = function(senderPubkey, myPossiblePubkeyhashbuf) { - var pubkey = this.getReceivePubkey(senderPubkey); - var pubkeybuf = pubkey.toDER(true); - var pubkeyhash = Hash.sha256ripemd160(pubkeybuf); - - if (pubkeyhash.toString('hex') === myPossiblePubkeyhashbuf.toString('hex')) - return true; - else - return false; -}; - -module.exports = Stealthkey; diff --git a/lib/expmt/stealthmessage.js b/lib/expmt/stealthmessage.js deleted file mode 100644 index 71efd61..0000000 --- a/lib/expmt/stealthmessage.js +++ /dev/null @@ -1,85 +0,0 @@ -var Stealthkey = require('./stealthkey'); -var StealthAddress = require('./stealthaddress'); -var ECIES = require('./ecies'); -var Message = require('../message'); -var Keypair = require('../keypair'); -var Address = require('../address'); -var Pubkey = require('../pubkey'); - -var StealthMessage = function StealthMessage(obj) { - if (!(this instanceof StealthMessage)) - return new StealthMessage(obj); - if (obj) - this.set(obj); -}; - -StealthMessage.prototype.set = function(obj) { - this.messagebuf = obj.messagebuf || this.messagebuf; - this.encbuf = obj.encbuf || this.encbuf; - this.toStealthAddress = obj.toStealthAddress || this.toStealthAddress; - this.toStealthkey = obj.toStealthkey || this.toStealthkey; - this.fromKeypair = obj.fromKeypair || this.fromKeypair; - this.receiveAddress = obj.receiveAddress || this.receiveAddress; - return this; -}; - -StealthMessage.encrypt = function(messagebuf, toStealthAddress, fromKeypair, ivbuf) { - var sm = StealthMessage().set({ - messagebuf: messagebuf, - toStealthAddress: toStealthAddress, - fromKeypair: fromKeypair - }); - sm.encrypt(ivbuf); - var buf = Buffer.concat([ - sm.receiveAddress.hashbuf, - sm.fromKeypair.pubkey.toDER(true), - sm.encbuf - ]); - return buf; -}; - -StealthMessage.decrypt = function(buf, toStealthkey) { - var sm = StealthMessage().set({ - toStealthkey: toStealthkey, - receiveAddress: Address().set({hashbuf: buf.slice(0, 20)}), - fromKeypair: Keypair().set({pubkey: Pubkey().fromDER(buf.slice(20, 20 + 33))}), - encbuf: buf.slice(20 + 33) - }); - return sm.decrypt().messagebuf; -}; - -StealthMessage.isForMe = function(buf, toStealthkey) { - var sm = StealthMessage().set({ - toStealthkey: toStealthkey, - receiveAddress: Address().set({hashbuf: buf.slice(0, 20)}), - fromKeypair: Keypair().set({pubkey: Pubkey().fromDER(buf.slice(20, 20 + 33))}), - encbuf: buf.slice(20 + 33) - }); - return sm.isForMe(); -}; - -StealthMessage.prototype.encrypt = function(ivbuf) { - if (!this.fromKeypair) - this.fromKeypair = Keypair().fromRandom(); - var receivePubkey = this.toStealthAddress.getReceivePubkey(this.fromKeypair); - this.receiveAddress = Address().fromPubkey(receivePubkey); - this.encbuf = ECIES.encrypt(this.messagebuf, receivePubkey, this.fromKeypair, ivbuf); - return this; -}; - -StealthMessage.prototype.decrypt = function() { - var receiveKeypair = this.toStealthkey.getReceiveKeypair(this.fromKeypair.pubkey); - this.messagebuf = ECIES.decrypt(this.encbuf, receiveKeypair.privkey); - return this; -}; - -StealthMessage.prototype.isForMe = function() { - var receivePubkey = this.toStealthkey.getReceivePubkey(this.fromKeypair.pubkey); - var receiveAddress = Address().fromPubkey(receivePubkey); - if (receiveAddress.toString('hex') === this.receiveAddress.toString('hex')) - return true; - else - return false; -}; - -module.exports = StealthMessage; diff --git a/lib/expmt/stealthtx.js b/lib/expmt/stealthtx.js deleted file mode 100644 index 0133166..0000000 --- a/lib/expmt/stealthtx.js +++ /dev/null @@ -1,69 +0,0 @@ -var StealthAddress = require('./stealthaddress'); -var StealthKey = require('./stealthkey'); -var Transaction = require('../transaction'); -var Pubkey = require('../pubkey'); - -var StealthTx = function StealthTx(tx, sa, sk) { - if (!(this instanceof StealthTx)) - return new StealthTx(tx, sa, sk); - if (tx instanceof Transaction) { - this.tx = tx; - this.sa = sa; - this.sk = sk; - } else if (tx) { - var obj = tx; - this.set(obj); - } -}; - -StealthTx.prototype.set = function(obj) { - this.sk = obj.sk || this.sk; - this.sa = obj.sa || this.sa; - this.tx = obj.tx || this.tx; - return this; -}; - -StealthTx.prototype.isForMe = function() { - if (!this.notMine()) - return true; - else - return false; -}; - -StealthTx.prototype.notMine = function() { - var err; - if (err = this.notStealth()) - return "Not stealth: " + err; - var txopbuf = this.tx.txouts[0].script.chunks[1].buf; - var parsed = StealthTx.parseOpReturnData(txopbuf); - var pubkey = parsed.pubkey; - var pubkeyhashbuf = this.tx.txouts[1].script.chunks[2].buf; - var sk = this.sk; - if (sk.isForMe(pubkey, pubkeyhashbuf)) { - return false; - } else { - return "StealthTx not mine"; - } -}; - -//For now, we only support a very limited variety of stealth tx -StealthTx.prototype.notStealth = function() { - var txouts = this.tx.txouts; - if (!(txouts.length >= 2)) - return "Not enough txouts"; - if (!txouts[0].script.isOpReturn()) - return "First txout is not OP_RETURN"; - if (!txouts[1].script.isPubkeyhashOut()) - return "Second txout is not pubkeyhash"; - return false; -}; - -StealthTx.parseOpReturnData = function(buf) { - var parsed = {}; - parsed.version = buf[0]; - parsed.noncebuf = buf.slice(1, 5); - parsed.pubkey = Pubkey().fromBuffer(buf.slice(5, 5 + 33)); - return parsed; -}; - -module.exports = StealthTx; diff --git a/test/stealthaddress.js b/test/stealthaddress.js deleted file mode 100644 index 3b8e3e8..0000000 --- a/test/stealthaddress.js +++ /dev/null @@ -1,149 +0,0 @@ -var StealthAddress = require('../lib/expmt/stealthaddress'); -var should = require('chai').should(); -var Stealthkey = require('../lib/expmt/stealthkey'); -var Keypair = require('../lib/keypair'); -var Privkey = require('../lib/privkey'); -var Pubkey = require('../lib/pubkey'); -var BN = require('../lib/bn'); -var Hash = require('../lib/hash'); -var Base58check = require('../lib/base58check'); - -describe('StealthAddress', function() { - - var stealthkey = Stealthkey(); - stealthkey.payloadKeypair = Keypair(); - stealthkey.payloadKeypair.privkey = Privkey(); - stealthkey.payloadKeypair.privkey.bn = BN().fromBuffer(Hash.sha256(new Buffer('test 1'))); - stealthkey.payloadKeypair.privkey2pubkey(); - stealthkey.scanKeypair = Keypair(); - stealthkey.scanKeypair.privkey = Privkey(); - stealthkey.scanKeypair.privkey.bn = BN().fromBuffer(Hash.sha256(new Buffer('test 2'))); - stealthkey.scanKeypair.privkey2pubkey(); - - var senderKeypair = Keypair(); - senderKeypair.privkey = Privkey(); - senderKeypair.privkey.bn = BN().fromBuffer(Hash.sha256(new Buffer('test 3'))); - senderKeypair.privkey2pubkey(); - - var addressString = 'vJmtuUb8ysKiM1HtHQF23FGfjGAKu5sM94UyyjknqhJHNdj5CZzwtpGzeyaATQ2HvuzomNVtiwsTJSWzzCBgCTtUZbRFpzKVq9MAUr'; - var dwhex = '2a0002697763d7e9becb0c180083738c32c05b0e2fee26d6278020c06bbb04d5f66b32010362408459041e0473298af3824dbabe4d2b7f846825ed4d1c2e2c670c07cb275d0100'; - var dwbuf = new Buffer(dwhex, 'hex'); - - it('should make a new stealth address', function() { - var sa = new StealthAddress(); - should.exist(sa); - sa = StealthAddress(); - should.exist(sa); - sa = StealthAddress(addressString); - should.exist(sa); - sa = StealthAddress(Base58check.decode(addressString)); - should.exist(sa); - }); - - describe('#fromJSON', function() { - - it('should give a stealthkey address with the right pubkeys', function() { - var sa = new StealthAddress(); - sa.fromJSON(addressString); - sa.payloadPubkey.toString().should.equal(stealthkey.payloadKeypair.pubkey.toString()); - sa.scanPubkey.toString().should.equal(stealthkey.scanKeypair.pubkey.toString()); - }); - - }); - - describe('#toJSON', function() { - - it('should return this known address string', function() { - StealthAddress().fromJSON(addressString).toJSON().should.equal(addressString); - }); - - }); - - describe('#fromBuffer', function() { - - it('should parse this DW buffer', function() { - StealthAddress().fromBuffer(new Buffer(dwhex, 'hex')).toBuffer().toString('hex').should.equal(dwhex); - }); - - }); - - describe('#fromString', function() { - - it('should parse this DW buffer', function() { - StealthAddress().fromString(Base58check(new Buffer(dwhex, 'hex')).toString()).toBuffer().toString('hex').should.equal(dwhex); - }); - - }); - - describe('#getSharedKeypair', function() { - - it('should return a key', function() { - var sa = new StealthAddress(); - sa.payloadPubkey = stealthkey.payloadKeypair.pubkey; - sa.scanPubkey = stealthkey.scanKeypair.pubkey; - var key = sa.getSharedKeypair(senderKeypair); - (key instanceof Keypair).should.equal(true); - }); - - it('should return the same key as Stealthkey.prototype.getSharedKeypair', function() { - var sa = new StealthAddress(); - sa.payloadPubkey = stealthkey.payloadKeypair.pubkey; - sa.scanPubkey = stealthkey.scanKeypair.pubkey; - var key = sa.getSharedKeypair(senderKeypair); - - var key2 = stealthkey.getSharedKeypair(senderKeypair.pubkey); - key.toString().should.equal(key2.toString()); - }); - - }); - - describe('#getReceivePubkey', function() { - - it('should return a pubkey', function() { - var pubkey = StealthAddress().fromStealthkey(stealthkey).getReceivePubkey(senderKeypair); - (pubkey instanceof Pubkey).should.equal(true); - }); - - it('should return the same pubkey as getReceivePubkey', function() { - var pubkey = StealthAddress().fromStealthkey(stealthkey).getReceivePubkey(senderKeypair); - var pubkey2 = stealthkey.getReceivePubkey(senderKeypair.pubkey); - pubkey2.toString().should.equal(pubkey.toString()); - }); - - }); - - describe('#toBuffer', function() { - - it('should return this known address buffer', function() { - var buf = Base58check.decode(addressString); - StealthAddress().fromBuffer(dwbuf).toBuffer().toString('hex').should.equal(dwhex); - }); - - }); - - describe('#toString', function() { - - it('should return this known address buffer', function() { - var buf = Base58check.decode(addressString); - StealthAddress().fromBuffer(buf).toString().should.equal(Base58check(new Buffer(dwhex, 'hex')).toString()); - }); - - }); - - describe('@parseDWBuffer', function() { - - it('should parse this known DW buffer', function() { - var buf = new Buffer(dwhex, 'hex'); - var parsed = StealthAddress.parseDWBuffer(buf); - parsed.version.should.equal(42); - parsed.options.should.equal(0); - parsed.scanPubkey.toString().should.equal('02697763d7e9becb0c180083738c32c05b0e2fee26d6278020c06bbb04d5f66b32'); - parsed.nPayloadPubkeys.should.equal(1); - parsed.payloadPubkeys[0].toString().should.equal('0362408459041e0473298af3824dbabe4d2b7f846825ed4d1c2e2c670c07cb275d'); - parsed.nSigs.should.equal(1); - parsed.prefix.toString().should.equal(''); - }); - - }); - -}); diff --git a/test/stealthkey.js b/test/stealthkey.js deleted file mode 100644 index 17eed96..0000000 --- a/test/stealthkey.js +++ /dev/null @@ -1,138 +0,0 @@ -var should = require('chai').should(); -var Stealthkey = require('../lib/expmt/stealthkey'); -var Keypair = require('../lib/keypair'); -var Privkey = require('../lib/privkey'); -var Pubkey = require('../lib/pubkey'); -var BN = require('../lib/bn'); -var Hash = require('../lib/hash'); - -describe('Stealthkey', function() { - - var stealthkey = Stealthkey(); - stealthkey.payloadKeypair = Keypair(); - stealthkey.payloadKeypair.privkey = Privkey(); - stealthkey.payloadKeypair.privkey.bn = BN().fromBuffer(Hash.sha256(new Buffer('test 1'))); - stealthkey.payloadKeypair.privkey2pubkey(); - stealthkey.scanKeypair = Keypair(); - stealthkey.scanKeypair.privkey = Privkey(); - stealthkey.scanKeypair.privkey.bn = BN().fromBuffer(Hash.sha256(new Buffer('test 2'))); - stealthkey.scanKeypair.privkey2pubkey(); - - var senderKeypair = Keypair(); - senderKeypair.privkey = Privkey(); - senderKeypair.privkey.bn = BN().fromBuffer(Hash.sha256(new Buffer('test 3'))); - senderKeypair.privkey2pubkey(); - - it('should create a new stealthkey', function() { - var stealthkey = new Stealthkey(); - should.exist(stealthkey); - }); - - it('should create a new stealthkey without using "new"', function() { - var stealthkey = Stealthkey(); - should.exist(stealthkey); - }); - - it('should create a new stealthkey with both keypairs in the constructor', function() { - var keypair1 = Keypair(); - var keypair2 = Keypair(); - var stealthkey = Stealthkey(keypair1, keypair2); - should.exist(stealthkey.payloadKeypair); - should.exist(stealthkey.scanKeypair); - }); - - describe('#set', function() { - - it('should set payload key', function() { - should.exist(Stealthkey().set({payloadKeypair: stealthkey.payloadKeypair}).payloadKeypair); - }); - - }); - - describe('#fromJSON', function() { - - it('should make a stealthkey from this JSON', function() { - var sk = Stealthkey().fromJSON({ - payloadKeypair: stealthkey.payloadKeypair.toJSON(), - scanKeypair: stealthkey.scanKeypair.toJSON() - }); - sk.payloadKeypair.toString().should.equal(stealthkey.payloadKeypair.toString()); - sk.scanKeypair.toString().should.equal(stealthkey.scanKeypair.toString()); - }); - - }); - - describe('#toJSON', function() { - - it('should convert this stealthkey to json', function() { - var json = stealthkey.toJSON() - var json2 = Stealthkey().fromJSON(json).toJSON(); - json.payloadKeypair.privkey.should.equal(json2.payloadKeypair.privkey); - json.scanKeypair.privkey.should.equal(json2.scanKeypair.privkey); - }); - - }); - - describe('#fromRandom', function() { - - it('should create a new stealthkey from random', function() { - var stealthkey = Stealthkey().fromRandom(); - should.exist(stealthkey.payloadKeypair.privkey.bn.gt(0)); - should.exist(stealthkey.scanKeypair.privkey.bn.gt(0)); - }); - - }); - - describe('#getSharedKeypair', function() { - - it('should return a key', function() { - var key = stealthkey.getSharedKeypair(senderKeypair.pubkey); - (key instanceof Keypair).should.equal(true); - }); - - }); - - describe('#getReceivePubkey', function() { - - it('should return a pubkey', function() { - var pubkey = stealthkey.getReceivePubkey(senderKeypair.pubkey); - (pubkey instanceof Pubkey).should.equal(true); - }); - - }); - - describe('#getReceiveKeypair', function() { - - it('should return a key', function() { - var key = stealthkey.getReceiveKeypair(senderKeypair.pubkey); - (key instanceof Keypair).should.equal(true); - }); - - it('should return a key with the same pubkey as getReceivePubkey', function() { - var key = stealthkey.getReceiveKeypair(senderKeypair.pubkey); - var pubkey = stealthkey.getReceivePubkey(senderKeypair.pubkey); - key.pubkey.toString().should.equal(pubkey.toString()); - }); - - it('should return private key with length 32 or less', function() { - var key = stealthkey.getReceiveKeypair(senderKeypair.pubkey); - key.privkey.bn.toBuffer().length.should.be.below(33); - }); - - }); - - describe('#isForMe', function() { - - it('should return true if it (the transaction or message) is for me', function() { - var pubkeyhash = new Buffer('3cb64fa6ee9b3e8754e3e2bd033bf61048604a99', 'hex'); - stealthkey.isForMe(senderKeypair.pubkey, pubkeyhash).should.equal(true); - }); - - it('should return false if it (the transaction or message) is not for me', function() { - var pubkeyhash = new Buffer('00b64fa6ee9b3e8754e3e2bd033bf61048604a99', 'hex'); - stealthkey.isForMe(senderKeypair.pubkey, pubkeyhash).should.equal(false); - }); - - }); - -}); diff --git a/test/stealthmessage.js b/test/stealthmessage.js deleted file mode 100644 index 16b2139..0000000 --- a/test/stealthmessage.js +++ /dev/null @@ -1,139 +0,0 @@ -var Keypair = require('../lib/keypair'); -var StealthMessage = require('../lib/expmt/stealthmessage'); -var Stealthkey = require('../lib/expmt/stealthkey'); -var StealthAddress = require('../lib/expmt/stealthaddress'); -var KDF = require('../lib/kdf'); -var Hash = require('../lib/hash'); -var should = require('chai').should(); -var Address = require('../lib/address'); - -describe('StealthMessage', function() { - - var payloadKeypair = KDF.buf2keypair(new Buffer('key1')); - var scanKeypair = KDF.buf2keypair(new Buffer('key2')); - var fromKeypair = KDF.buf2keypair(new Buffer('key3')); - var enchex = 'f557994f16d0d628fa4fdb4ab3d7e0bc5f2754f20381c7831a20c7c9ec88dcf092ea3683261798ccda991ed65a3a54a036d8125dec0381c7831a20c7c9ec88dcf092ea3683261798ccda991ed65a3a54a036d8125dec9f86d081884c7d659a2feaa0c55ad01560ba2904d3bc8395b6c4a6f87648edb33db6a22170e5e26f340c7ba943169210234cd6a753ad13919b0ab7d678b47b5e7d63e452382de2c2590fb57ef048f7b3'; - var encbuf = new Buffer(enchex, 'hex'); - var ivbuf = Hash.sha256(new Buffer('test')).slice(0, 128 / 8); - var sk = Stealthkey().set({payloadKeypair: payloadKeypair, scanKeypair: scanKeypair}); - var sa = StealthAddress().fromStealthkey(sk); - var messagebuf = new Buffer('this is my message'); - - it('should make a new stealthmessage', function() { - var sm = new StealthMessage(); - should.exist(sm); - sm = StealthMessage() - should.exist(sm); - }); - - it('should allow "set" style syntax', function() { - var encbuf = StealthMessage().set({ - messagebuf: messagebuf, - toStealthAddress: sa - }).encrypt().encbuf; - should.exist(encbuf); - encbuf.length.should.equal(113); - }); - - describe('#set', function() { - - it('should set the messagebuf', function() { - var sm = StealthMessage().set({messagebuf: messagebuf}); - should.exist(sm.messagebuf); - }); - - }); - - describe('@encrypt', function() { - - it('should encrypt a message', function() { - var encbuf = StealthMessage.encrypt(messagebuf, sa); - encbuf.length.should.equal(166); - }); - - it('should encrypt a message with this fromKeypair and ivbuf the same each time', function() { - var encbuf = StealthMessage.encrypt(messagebuf, sa, fromKeypair, ivbuf); - encbuf.length.should.equal(166); - encbuf.toString('hex').should.equal(enchex); - }); - - }); - - describe('@decrypt', function() { - - it('should decrypt this known message correctly', function() { - var messagebuf2 = StealthMessage.decrypt(encbuf, sk); - messagebuf2.toString('hex').should.equal(messagebuf.toString('hex')); - }); - - }); - - describe('@isForMe', function() { - - it('should know that this message is for me', function() { - StealthMessage.isForMe(encbuf, sk).should.equal(true); - }); - - it('should know that this message is for me even if my payloadPrivkey is not present', function() { - var sk2 = new Stealthkey(); - sk2.scanKeypair = sk.scanKeypair; - sk2.payloadKeypair = Keypair().set({pubkey: sk.payloadKeypair.pubkey}); - should.not.exist(sk2.payloadKeypair.privkey); - StealthMessage.isForMe(encbuf, sk2).should.equal(true); - }); - - }); - - describe('#encrypt', function() { - - it('should encrypt this message', function() { - var sm = StealthMessage().set({ - messagebuf: messagebuf, - toStealthAddress: sa, - fromKeypair: fromKeypair - }); - sm.encrypt().encbuf.length.should.equal(113); - }); - - }); - - describe('#decrypt', function() { - - it('should decrypt that which was encrypted', function() { - var sm = StealthMessage().set({ - messagebuf: messagebuf, - toStealthAddress: sa - }).encrypt(); - var messagebuf2 = StealthMessage().set({ - encbuf: sm.encbuf, - fromKeypair: sm.fromKeypair, - toStealthkey: sk - }).decrypt().messagebuf; - messagebuf2.toString('hex').should.equal(messagebuf.toString('hex')); - }); - - }); - - describe('#isForMe', function() { - - it('should know that this message is for me', function() { - StealthMessage().set({ - encbuf: encbuf, - toStealthkey: sk, - fromKeypair: fromKeypair, - receiveAddress: Address().set({hashbuf: encbuf.slice(0, 20)}) - }).isForMe().should.equal(true); - }); - - it('should know that this message is not for me', function() { - StealthMessage().set({ - encbuf: encbuf, - toStealthkey: sk, - fromKeypair: fromKeypair, - receiveAddress: Address().set({hashbuf: encbuf.slice(0, 20)}) - }).isForMe().should.equal(true); - }); - - }); - -}); diff --git a/test/stealthtx.js b/test/stealthtx.js deleted file mode 100644 index f00d73e..0000000 --- a/test/stealthtx.js +++ /dev/null @@ -1,68 +0,0 @@ -var should = require('chai').should(); -var Txout = require('../lib/txout'); -var Stealthkey = require('../lib/expmt/stealthkey'); -var StealthTx = require('../lib/expmt/stealthtx'); -var Transaction = require('../lib/transaction'); -var Varint = require('../lib/varint'); - -describe('StealthTx', function() { - - var txhex = '0100000001c828ccce36eca04f96321ad488528af86c7598e67157c4f8e2f462a9e0e3af5f010000006a47304402204525eef6a56cc57fb184e53efdfdc1086d5265da21480d55c2184536440a64f70220349cdc6c66a8507dde0d172fe64aeb57ae56e014b50315f615086a6b85c5424e012102c0633ddb6bf2a8686e2ba4ce8026c94e1e27ef12e73f8fed6d6d2b97199f9b74ffffffff020000000000000000286a2606deadbeef0365b5a5b0ba059666e907b0b5e07b37fdb162d1399ed829315491fe1f30c87b3f905f0100000000001976a9142042d5e7ef9e82346419fbfe7df5ae52fe4bea3c88ac00000000'; - var txbuf = new Buffer(txhex, 'hex'); - var txidhex = '66da969fff214c329e27062beaf3baf20ed035801559b31f3e868c2de4cdfc5b'; - var tx = Transaction(txbuf); - - it('should make a new StealthTx', function() { - var stx = new StealthTx(); - should.exist(stx); - stx = StealthTx(); - should.exist(stx); - }); - - describe('#isForMe', function() { - - it('should return false for this known tx and random stealthkey', function() { - var sk = Stealthkey().fromRandom(); - var stx = StealthTx().set({sk: sk, tx: tx}); - stx.isForMe().should.equal(false); - }); - - }); - - describe('#notMine', function() { - - it('should return true for this known tx and random stealthkey', function() { - var sk = Stealthkey().fromRandom(); - var stx = StealthTx().set({sk: sk, tx: tx}); - stx.notMine().should.equal("StealthTx not mine"); - }); - - }); - - describe('#notStealth', function() { - - it('should know this is a stealth tx', function() { - var stx = StealthTx().set({tx: tx}); - stx.notStealth().should.equal(false); - }); - - it('should know this is not a stealth tx', function() { - var tx2 = Transaction(tx); - tx2.txouts.pop(); - tx2.txoutsvi = Varint(1); - var stx = StealthTx().set({tx: tx2}); - stx.notStealth().should.equal("Not enough txouts"); - }); - - }); - - describe('@parseOpReturnData', function() { - var txout = tx.txouts[0]; - var buf = txout.script.chunks[1].buf; - var parsed = StealthTx.parseOpReturnData(buf); - (typeof parsed.version).should.equal('number'); - parsed.noncebuf.length.should.be.above(0); - parsed.pubkey.toBuffer().length.should.equal(33); - }); - -});