Add PrivateKey, Key classes. Update test to enc/dec private key test vectors.

Key.js

@@ -0,0 +1,3 @@
+
+module.exports = require('bindings')('KeyModule');
+

PrivateKey.js

@@ -0,0 +1,23 @@
+require('classtool');
+
+function ClassSpec(b) {
+  var superclass = b.superclass || require('./util/VersionedData').class();
+
+  function PrivateKey() {
+    PrivateKey.super(this, arguments);
+  };
+
+  PrivateKey.superclass = superclass;
+  superclass.applyEncodingsTo(PrivateKey);
+
+  PrivateKey.prototype.validate = function() {
+    this.doAsBinary(function() {
+      PrivateKey.super(this, 'validate', arguments);
+      if (this.data.length < 32 || this.data.length > 33)
+        throw new Error('invalid data length');
+    });
+  };
+
+  return PrivateKey;
+};
+module.defineClass(ClassSpec);

test/basic.js

@@ -2,12 +2,32 @@ var assert = require('assert');
 var fs = require('fs');
 
 var Address = require('../Address').class();
+var PrivateKey = require('../PrivateKey').class();
 var networks = require('../networks');
+var KeyModule = require('../Key');
 
 suite('basic');
 
-function test_encode_priv(b58, payload, isTestnet)
+function test_encode_priv(b58, payload, isTestnet, isCompressed)
 {
+	var network = isTestnet ? networks.testnet : networks.livenet;
+	var version = network.keySecret;
+
+	var buf_pl = new Buffer(payload, 'hex');
+	var buf;
+	if (isCompressed) {
+		buf = new Buffer(buf_pl.length + 1);
+		buf_pl.copy(buf);
+		buf[buf_pl.length] = 1;
+	} else
+		buf = buf_pl;
+
+	var key = new KeyModule.Key();
+	key.private = buf;
+	key.compressed = isCompressed;
+
+	var privkey = new PrivateKey(version, buf);
+	assert.equal(privkey.toString(), b58);
 }
 
 function test_encode_pub(b58, payload, isTestnet, addrType)
@@ -20,8 +40,23 @@ function test_encode_pub(b58, payload, isTestnet, addrType)
 	assert.equal(addr.toString(), b58);
 }
 
-function test_decode_priv(b58, payload, isTestnet)
+function test_decode_priv(b58, payload, isTestnet, isCompressed)
 {
+	var network = isTestnet ? networks.testnet : networks.livenet;
+	var version = network.keySecret;
+
+	var buf_pl = new Buffer(payload, 'hex');
+	var buf;
+	if (isCompressed) {
+		buf = new Buffer(buf_pl.length + 1);
+		buf_pl.copy(buf);
+		buf[buf_pl.length] = 1;
+	} else
+		buf = buf_pl;
+
+	var privkey = new PrivateKey(b58);
+	assert.equal(version, privkey.version());
+	assert.equal(buf.toString(), privkey.payload().toString());
 }
 
 function test_decode_pub(b58, payload, isTestnet, addrType)
@@ -45,8 +80,9 @@ function is_valid(datum)
 	var isTestnet = obj['isTestnet'];
 
 	if (isPrivkey) {
-		test_encode_priv(b58, payload, isTestnet);
-		test_decode_priv(b58, payload, isTestnet);
+		var isCompressed = obj['isCompressed'];
+		test_encode_priv(b58, payload, isTestnet, isCompressed);
+		test_decode_priv(b58, payload, isTestnet, isCompressed);
 	} else {
 		var addrType = obj['addrType'];
 		test_encode_pub(b58, payload, isTestnet, addrType);