ethereumjs-util - npm Package Compare versions

Comparing version 1.0.1 to 1.0.2

index.js

 const SHA3 = require('sha3'),
+  ec = require('elliptic').ec('secp256k1');
   assert = require('assert'),
@@ -7,5 +8,5 @@ rlp = require('rlp'),
 //the max interger that this VM can handle
-var MAX_INTEGER = exports.MAX_INTEGER = new BN('ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff', 16);
+const MAX_INTEGER = exports.MAX_INTEGER = new BN('ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff', 16);
 
-var TWO_POW256 = exports.TWO_POW256 = new BN('115792089237316195423570985008687907853269984665640564039457584007913129639936');
+const TWO_POW256 = exports.TWO_POW256 = new BN('115792089237316195423570985008687907853269984665640564039457584007913129639936');
 
@@ -22,3 +23,3 @@ //hex string of SHA3-256 hash of `null`
 
-var ETH_UNITS = exports.ETH_UNITS = [
+const ETH_UNITS = exports.ETH_UNITS = [
   'wei',
@@ -177,10 +178,15 @@ 'Kwei',
  */
-exports.pubToAddress = function(pubKey) {
-
+var pubToAddress = exports.pubToAddress = exports.publicToAddress = function(pubKey) {
   var hash = new SHA3.SHA3Hash(256);
-
-  hash.update(pubKey.slice(1));
+  hash.update(pubKey.slice(-64));
   return new Buffer(hash.digest('hex').slice(-40), 'hex');
 };
 
+exports.privateToAddress = 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);
+}
+
 /**
@@ -266,3 +272,2 @@ * Generates a new address
 
-
         if (!(field.empty && v.length === 0) && field.length) {
@@ -269,0 +274,0 @@ assert(field.length === v.length, 'The field ' + field.name + 'must have byte length of ' + field.length);

package.json

 {
   "name": "ethereumjs-util",
-  "version": "1.0.1",
+  "version": "1.0.2",
   "description": "a collection of utility functions for Ethereum",
@@ -27,2 +27,3 @@ "main": "index.js",
     "crypto-js": "^3.1.5",
+    "elliptic": "^3.1.0",
     "rlp": "^1.0.0",
@@ -29,0 +30,0 @@ "sha3": "^1.1.0"

test/index.js

@@ -86,3 +86,3 @@ var assert = require('assert');
     var pubKey = 'f049a20000000000f0b08900000000000841b30200000000200000000d000000';
-    var address = '47f4f63d925e6b35f604a203a7ee365c147500db';
+    var address = 'ef6a1274aa67f83eadf383016d584cd6185477ae';
     pubKey = new Buffer(pubKey, 'hex');
@@ -89,0 +89,0 @@ var r = ethUtils.pubToAddress(pubKey);

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Improved metrics

Total package byte prevSize

17729

increased by5.1%

Number of package files

8

increased by14.29%

Lines of code

477

increased by4.15%

Worsened metrics

Dependency count

5

increased by25%

Dependency changes

• + Addedelliptic@^3.1.0

• + Addedbrorand@1.1.0(transitive)

• + Addedelliptic@3.1.0(transitive)

• + Addedhash.js@1.1.7(transitive)

• + Addedinherits@2.0.4(transitive)

• + Addedminimalistic-assert@1.0.1(transitive)