ethereumjs-util - npm Package Compare versions

Comparing version 1.0.2 to 1.0.3

index.js

@@ -182,10 +182,26 @@ const SHA3 = require('sha3'),
 
-exports.privateToAddress = function(privateKey){
+/**
+ * Returns the ethereum public key of a given private key
+ * @method privateToPublic
+ * @param {Buffer} privateKey
+ * @return {Buffer}
+ */
+var privateToPublic = exports.privateToPublic = function(privateKey){
   privateKey = new BN(privateKey);
   var key = ec.keyFromPrivate(privateKey).getPublic().toJSON();
   key =  new Buffer(key[0].toArray().concat(key[1].toArray()));
-  return pubToAddress(key);
+  return key;
 }
 
 /**
+ * Returns the ethereum address of a given private key
+ * @method privateToAddress
+ * @param {Buffer} privateKey
+ * @return {Buffer}
+ */
+exports.privateToAddress = function(privateKey){
+  return pubToAddress(privateToPublic(privateKey));
+}
+
+/**
  * Generates a new address
@@ -245,5 +261,3 @@ * @method generateAddress
           if (typeof v === 'string') {
-            if (v.slice(0, 2) === '0x') {
-              v = v.slice(2);
-            }
+            v= stripHex(v);
             v = new Buffer(v, 'hex');
@@ -423,1 +437,19 @@ } else if (typeof v === 'number') {
 };
+
+const isHexPrefixed = exports.isHexPrefixed = function(str){
+  return str.slice(0, 2) === '0x';
+}
+
+const stripHex = exports.stripHex = function(str){
+  if (typeof str !== 'string')
+     return str
+
+  return isHexPrefixed ?  str.slice(2) : str
+}
+
+exports.addHex = function(str){
+  if (typeof str !== 'string')
+     return str
+  
+  return isHexPrefixed(str) ? '0x' + str : str
+}

package.json

 {
   "name": "ethereumjs-util",
-  "version": "1.0.2",
+  "version": "1.0.3",
   "description": "a collection of utility functions for Ethereum",
@@ -5,0 +5,0 @@ "main": "index.js",

README.md

@@ -51,2 +51,10 @@ # SYNOPSIS [![Build Status](https://travis-ci.org/ethereum/ethereumjs-util.svg)](https://travis-ci.org/ethereum/ethereumjs-util)
 
+### `privateToPublic(privateKey)`
+Returns the ethereum public key of a given private key
+- `privateKey` - the private key as a `buffer`
+
+### `privateToAddress(privateKey)`
+Returns the ethereum address of a given private key
+- `privateKey` - the private key as a `buffer`
+
 ### `defineProperties(self, fields)`
@@ -53,0 +61,0 @@ defines properties on a `Object`

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Improved metrics

Total package byte prevSize

18716

increased by5.57%

Lines of code

503

increased by5.45%

Number of lines in readme file

82

increased by10.81%

No dependency changes