coinkey - npm Package Compare versions

Comparing version 2.0.0 to 3.0.0

CHANGELOG.md

@@ -0,1 +1,6 @@
+3.0.0 / 2018-06-05
+------------------
+- Drop support for Node versions less than v6
+- Add support for ZCash and other coins with multibyte public versions
+
 2.0.0 / 2016-04-27
@@ -2,0 +7,0 @@ ------------------

lib/coinkey.js

@@ -26,3 +26,4 @@ var assert = require('assert')
 Object.defineProperty(CoinKey.prototype, 'versions', {
-  enumerable: true, configurable: true,
+  enumerable: true,
+  configurable: true,
   get: function () {
@@ -44,3 +45,4 @@ return this._versions
   get: function () {
-    return cs.encode(this.pubKeyHash, this.versions.public)
+    var bufVersion = util.bufferizeVersion(this.versions.public)
+    return cs.encode(this.pubKeyHash, bufVersion)
   }
@@ -47,0 +49,0 @@ })

lib/util.js

@@ -7,5 +7,5 @@ // poor man's clone
 function isArrayish (maybeArray) {
-  return Array.isArray(maybeArray)
-    || (maybeArray instanceof Uint8Array)
-    || Buffer.isBuffer(maybeArray)
+  return Array.isArray(maybeArray) ||
+    (maybeArray instanceof Uint8Array) ||
+    Buffer.isBuffer(maybeArray)
 }
@@ -27,6 +27,30 @@
 
+function bufferizeVersion (version) {
+  if (typeof version === 'string') return hexStringToBuffer(version)
+  if (typeof version === 'number') return beUIntToBuffer(version)
+  throw new Error('invalid version type.')
+}
+
+// accepts hex string sequence with or without 0x prefix
+function hexStringToBuffer (input) {
+  var isValidRE = /^(0x)?([\dA-Fa-f]{2})+$/g
+  if (!isValidRE.test(input)) throw new Error('invalid hex string.')
+  return Buffer.from(input.slice(input.slice(0, 2) === '0x' ? 2 : 0), 'hex')
+}
+
+function beUIntToBuffer (num) {
+  var length
+  if (num === 0) length = 1
+  else if (num > 0) length = Math.ceil((Math.log(num + 1) / Math.log(2)) / 8)
+  var buf = Buffer.alloc(length)
+  buf.writeUIntBE(num, 0, length)
+
+  return buf
+}
+
 module.exports = {
   clone: clone,
   isArrayish: isArrayish,
-  normalizeVersions: normalizeVersions
+  normalizeVersions: normalizeVersions,
+  bufferizeVersion: bufferizeVersion
 }

package.json

 {
   "name": "coinkey",
-  "version": "2.0.0",
+  "version": "3.0.0",
   "description": "JavaScript component for private keys, public keys, and addresess for crypto currencies such as Bitcoin, Litecoin, and Dogecoin",
@@ -5,0 +5,0 @@ "keywords": [

README.md

@@ -19,3 +19,3 @@ coinkey
 - license: **MIT**
-- versioning: [http://semver-ftw.org](http://semver-ftw.org)
+- versioning: **SemVer**
 
@@ -22,0 +22,0 @@

New alerts

New author

Supply chain risk

A new npm collaborator published a version of the package for the first time. New collaborators are usually benign additions to a project, but do indicate a change to the security surface area of a package.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

13501

increased by6.93%

Lines of code

114

increased by23.91%

Worsened metrics

Number of package files

5

decreased by-16.67%

Number of medium supply chain risk alerts

1

increased byInfinity%

No dependency changes