split up Key into Key.browser and Key.node

This commit is contained in:
Ryan X. Charles 2014-04-20 11:19:54 -03:00
parent abc799f453
commit 05d86b6453
3 changed files with 106 additions and 113 deletions

102
lib/Key.browser.js Normal file
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@ -0,0 +1,102 @@
var ECKey = require('../browser/vendor-bundle.js').ECKey;
var buffertools = require('buffertools');
var Key = function() {
this._pub = null;
this.compressed = true; // default
};
var bufferToArray = Key.bufferToArray = function(buffer) {
var ret = [];
var l = buffer.length;
for(var i =0; i<l; i++) {
ret.push(buffer.readUInt8(i));
}
return ret;
}
Object.defineProperty(Key.prototype, 'public', {
set: function(p){
if (!Buffer.isBuffer(p) ) {
throw new Error('Arg should be a buffer');
}
var type = p[0];
this.compressed = type!==0x04;
this._pub = p;
},
get: function(){
return this._pub;
}
});
Key.generateSync = function() {
var eck = new ECKey();
eck.setCompressed(true);
var pub = eck.getPub();
var ret = new Key();
ret.private = new Buffer(eck.priv.toByteArrayUnsigned());
ret.public = new Buffer(pub);
return ret;
};
Key.prototype.regenerateSync = function() {
if (!this.private) {
throw new Error('Key does not have a private key set');
}
var eck = new ECKey(buffertools.toHex(this.private));
eck.setCompressed(this.compressed);
this.public = new Buffer(eck.getPub());
return this;
};
Key.prototype.signSync = function(hash) {
if (!this.private) {
throw new Error('Key does not have a private key set');
}
if (!Buffer.isBuffer(hash) || hash.length !== 32) {
throw new Error('Arg should be a 32 bytes hash buffer');
}
var eck = new ECKey(buffertools.toHex(this.private));
eck.setCompressed(this.compressed);
var signature = eck.sign(bufferToArray(hash));
// return it as a buffer to keep c++ compatibility
return new Buffer(signature);
};
Key.prototype.verifySignature = function(hash, sig, callback) {
try {
var result = this.verifySignatureSync(hash, sig);
callback(null, result);
} catch (e) {
callback(e);
}
};
Key.prototype.verifySignatureSync = function(hash, sig) {
var self = this;
if (!Buffer.isBuffer(hash) || hash.length !== 32) {
throw new Error('Arg 1 should be a 32 bytes hash buffer');
}
if (!Buffer.isBuffer(sig)) {
throw new Error('Arg 2 should be a buffer');
}
if (!self.public) {
throw new Error('Key does not have a public key set');
}
var eck = new ECKey();
eck.setPub(bufferToArray(self.public));
eck.setCompressed(self.compressed);
var sigA = bufferToArray(sig);
var ret = eck.verify(bufferToArray(hash),sigA);
return ret;
};
module.exports = Key;

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@ -1,115 +1,5 @@
if (process.versions) {
// c++ native version
var KeyModule = require('bindings')('KeyModule');
var Key = KeyModule.Key;
module.exports = Key;
} else {
// pure js version
var ECKey = require('../browser/vendor-bundle.js').ECKey;
var buffertools = require('buffertools');
var kSpec = function() {
this._pub = null;
this.compressed = true; // default
};
var bufferToArray = kSpec.bufferToArray = function(buffer) {
var ret = [];
var l = buffer.length;
for(var i =0; i<l; i++) {
ret.push(buffer.readUInt8(i));
}
return ret;
}
Object.defineProperty(kSpec.prototype, 'public', {
set: function(p){
if (!Buffer.isBuffer(p) ) {
throw new Error('Arg should be a buffer');
}
var type = p[0];
this.compressed = type!==0x04;
this._pub = p;
},
get: function(){
return this._pub;
}
});
kSpec.generateSync = function() {
var eck = new ECKey();
eck.setCompressed(true);
var pub = eck.getPub();
var ret = new kSpec();
ret.private = new Buffer(eck.priv.toByteArrayUnsigned());
ret.public = new Buffer(pub);
return ret;
};
kSpec.prototype.regenerateSync = function() {
if (!this.private) {
throw new Error('Key does not have a private key set');
}
var eck = new ECKey(buffertools.toHex(this.private));
eck.setCompressed(this.compressed);
this.public = new Buffer(eck.getPub());
return this;
};
kSpec.prototype.signSync = function(hash) {
if (!this.private) {
throw new Error('Key does not have a private key set');
}
if (!Buffer.isBuffer(hash) || hash.length !== 32) {
throw new Error('Arg should be a 32 bytes hash buffer');
}
var eck = new ECKey(buffertools.toHex(this.private));
eck.setCompressed(this.compressed);
var signature = eck.sign(bufferToArray(hash));
// return it as a buffer to keep c++ compatibility
return new Buffer(signature);
};
kSpec.prototype.verifySignature = function(hash, sig, callback) {
try {
var result = this.verifySignatureSync(hash, sig);
callback(null, result);
} catch (e) {
callback(e);
}
};
kSpec.prototype.verifySignatureSync = function(hash, sig) {
var self = this;
if (!Buffer.isBuffer(hash) || hash.length !== 32) {
throw new Error('Arg 1 should be a 32 bytes hash buffer');
}
if (!Buffer.isBuffer(sig)) {
throw new Error('Arg 2 should be a buffer');
}
if (!self.public) {
throw new Error('Key does not have a public key set');
}
var eck = new ECKey();
eck.setPub(bufferToArray(self.public));
eck.setCompressed(self.compressed);
var sigA = bufferToArray(sig);
var ret = eck.verify(bufferToArray(hash),sigA);
return ret;
};
module.exports = kSpec;
module.exports = require('./Key.node');
return;
}
module.exports = require('./Key.browser');

1
lib/Key.node.js Normal file
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module.exports = require('bindings')('KeyModule').Key;