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add support for 8 byte big endian nonce to Message

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...network protocol is backwards incompatible with previous network protocl.
also includes a second version number for backwards-compatible changes (the
original version number was for backwards-incompatible changes).
This commit is contained in:
Ryan X. Charles 2014-07-08 20:00:42 -07:00
commit a1155c2798
4 changed files with 149 additions and 29 deletions
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61
test/test.Message.js
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@ -36,15 +36,70 @@ describe('Message model', function() {
var encoded = Message.encode(key2.public, key, message);
var decoded = Message.decode(key2, encoded);
decoded.toString('hex').should.equal(messagehex);
var payload = decoded.payload;
payload.toString('hex').should.equal(messagehex);
});
it('should decode an encoded message with proper prevnonce', function() {
var message = new Buffer('message');
var messagehex = message.toString('hex');
var nonce = new Buffer([0, 0, 0, 0, 0, 0, 0, 2]);
var opts = {nonce: nonce};
var encoded = Message.encode(key2.public, key, message, opts);
var prevnonce = new Buffer([0, 0, 0, 0, 0, 0, 0, 1]);
opts = {prevnonce: prevnonce};
var decoded = Message.decode(key2, encoded, opts);
var payload = decoded.payload;
payload.toString('hex').should.equal(messagehex);
});
it('should decode an encoded message with proper prevnonce - for first part', function() {
var message = new Buffer('message');
var messagehex = message.toString('hex');
var nonce = new Buffer([0, 0, 0, 2, 0, 0, 0, 0]);
var opts = {nonce: nonce};
var encoded = Message.encode(key2.public, key, message, opts);
var prevnonce = new Buffer([0, 0, 0, 1, 0, 0, 0, 0]);
opts = {prevnonce: prevnonce};
var decoded = Message.decode(key2, encoded, opts);
var payload = decoded.payload;
payload.toString('hex').should.equal(messagehex);
});
it('should fail if prevnonce is too high', function() {
var message = new Buffer('message');
var messagehex = message.toString('hex');
var nonce = new Buffer([0, 0, 0, 0, 0, 0, 0, 1]);
var opts = {nonce: nonce};
var encoded = Message.encode(key2.public, key, message, opts);
var prevnonce = new Buffer([0, 0, 0, 0, 0, 0, 0, 1]);
opts = {prevnonce: prevnonce};
(function() {Message.decode(key2, encoded, opts)}).should.throw('Nonce not equal to zero and not greater than the previous nonce');
});
it('should fail if prevnonce is too high - for first part', function() {
var message = new Buffer('message');
var messagehex = message.toString('hex');
var nonce = new Buffer([0, 0, 0, 1, 0, 0, 0, 0]);
var opts = {nonce: nonce};
var encoded = Message.encode(key2.public, key, message, opts);
var prevnonce = new Buffer([0, 0, 0, 1, 0, 0, 0, 0]);
opts = {prevnonce: prevnonce};
(function() {Message.decode(key2, encoded, opts)}).should.throw('Nonce not equal to zero and not greater than the previous nonce');
});
it('should fail if the version number is incorrect', function() {
var payload = new Buffer('message');
var fromkey = key;
var topubkey = key2.public;
var version = new Buffer([1]);
var toencrypt = Buffer.concat([version, payload]);
var version1 = new Buffer([2]);
var version2 = new Buffer([0]);
var nonce = new Buffer([0, 0, 0, 0, 0, 0, 0, 0]);
var toencrypt = Buffer.concat([version1, version2, nonce, payload]);
var encrypted = Message._encrypt(topubkey, toencrypt);
var sig = Message._sign(fromkey, encrypted);
var encoded = {