ethereumjs-util - npm Package Compare versions

Comparing version 2.3.2 to 2.4.0

index.js

@@ -175,3 +175,3 @@ const SHA3 = require('sha3')
 exports.toUnsigned = function (num) {
-  if (num.cmpn(0) === -1) {
+  if (num.isNeg()) {
     return new Buffer(num.add(exports.TWO_POW256).toArray())
@@ -230,2 +230,12 @@ }
 /**
+ * Creates SHA-3 hash of the RLP encoded version of the input
+ * @method rlphash
+ * @param {Buffer|Array|String|Number} a the input data
+ * @return {Buffer}
+ */
+exports.rlphash = function (a) {
+  return exports.sha3(rlp.encode(a))
+}
+
+/**
  * Returns the ethereum address of a given public key
@@ -350,3 +360,3 @@ * @method pubToAddress
         } else if (!(field.allowZero && v.length === 0) && field.length) {
-          assert(field.length === v.length, 'The field ' + field.name + 'must have byte length of ' + field.length)
+          assert(field.length === v.length, 'The field ' + field.name + ' must have byte length of ' + field.length)
         }
@@ -353,0 +363,0 @@

package.json

 {
   "name": "ethereumjs-util",
-  "version": "2.3.2",
+  "version": "2.4.0",
   "description": "a collection of utility functions for Ethereum",
@@ -5,0 +5,0 @@ "main": "index.js",

README.md

@@ -20,3 +20,2 @@ # SYNOPSIS
  -  `SHA3_RLP` - SHA3-256 hash of the RLP of `null`
- -  `ETH_UNITS` - an array of ethereum units
  -  [`BN`](https://github.com/indutny/bn.js)
@@ -151,2 +150,9 @@ -  [`rlp`](https://github.com/wanderer/rlp)
 
+### `rlphash(a)`
+Returns a sha3 of the RLP encoded version of `a`
+**Parameters**
+- `a` - the value to encode and hash
+
+**Return:** `Buffer`
+
 ### `printBA(ba)`
@@ -153,0 +159,0 @@ Print a Buffer Array

test/index.js

@@ -56,2 +56,11 @@ var assert = require('assert')
 
+describe('rlphash', function () {
+  it('should produce a sha3 of the rlp data', function () {
+    var msg = '0x3c9229289a6125f7fdf1885a77bb12c37a8d3b4962d936f7e3084dece32a3ca1'
+    var r = '33f491f24abdbdbf175e812b94e7ede338d1c7f01efb68574acd279a15a39cbe'
+    var hash = ethUtils.rlphash(msg)
+    assert.equal(hash.toString('hex'), r)
+  })
+})
+
 describe('unpad', function () {
@@ -114,3 +123,3 @@ it('should unpad a string', function () {
 describe('fromSigned', function () {
-  it('should converts an unsigned buffer to a singed number', function () {
+  it('should convert an unsigned (negative) buffer to a singed number', function () {
     var neg = '-452312848583266388373324160190187140051835877600158453279131187530910662656'
@@ -123,6 +132,14 @@ var buf = new Buffer(32)
   })
+  it('should convert an unsigned (positive) buffer to a singed number', function () {
+    var neg = '452312848583266388373324160190187140051835877600158453279131187530910662656'
+    var buf = new Buffer(32)
+    buf.fill(0)
+    buf[0] = 1
+
+    assert.equal(ethUtils.fromSigned(buf), neg)
+  })
 })
 
 describe('toUnsigned', function () {
-  it('should convert a signed number to unsigned', function () {
+  it('should convert a signed (negative) number to unsigned', function () {
     var neg = '-452312848583266388373324160190187140051835877600158453279131187530910662656'
@@ -134,2 +151,10 @@ var hex = 'ff00000000000000000000000000000000000000000000000000000000000000'
   })
+
+  it('should convert a signed (positive) number to unsigned', function () {
+    var neg = '452312848583266388373324160190187140051835877600158453279131187530910662656'
+    var hex = '0100000000000000000000000000000000000000000000000000000000000000'
+    var num = new BN(neg)
+
+    assert.equal(ethUtils.toUnsigned(num).toString('hex'), hex)
+  })
 })
@@ -136,0 +161,0 @@

New alerts

License Policy Violation

License

This package is not allowed per your license policy. Review the package's license to ensure compliance.

Found 1 instance in 1 package

Fixed alerts

License Policy Violation

License

This package is not allowed per your license policy. Review the package's license to ensure compliance.

Found 1 instance in 1 package

Native code

Supply chain risk

Contains native code (e.g., compiled binaries or shared libraries). Including native code can obscure malicious behavior.

Found 1 instance in 1 package

Improved metrics

Lines of code

643

increased by4.89%

Number of lines in readme file

211

increased by2.93%

Number of medium supply chain risk alerts

0

decreased by-100%

Worsened metrics

Total package byte prevSize

27468

decreased by-28.52%

Number of package files

7

decreased by-12.5%

No dependency changes