elliptic - npm Package Compare versions

Comparing version 6.3.2 to 6.3.3

lib/elliptic/curves.js

@@ -140,3 +140,3 @@ 'use strict';
   a: '76d06',
-  b: '0',
+  b: '1',
   n: '1000000000000000 0000000000000000 14def9dea2f79cd6 5812631a5cf5d3ed',
@@ -143,0 +143,0 @@ hash: hash.sha256,

lib/elliptic/ec/key.js

 'use strict';
 
 var BN = require('bn.js');
+var elliptic = require('../../elliptic');
+var utils = elliptic.utils;
+var assert = utils.assert;
 
@@ -84,2 +87,11 @@ function KeyPair(ec, options) {
   if (key.x || key.y) {
+    // Montgomery points only have an `x` coordinate.
+    // Weierstrass/Edwards points on the other hand have both `x` and
+    // `y` coordinates.
+    if (this.ec.curve.type === 'mont') {
+      assert(key.x, 'Need x coordinate');
+    } else if (this.ec.curve.type === 'short' ||
+               this.ec.curve.type === 'edwards') {
+      assert(key.x && key.y, 'Need both x and y coordinate');
+    }
     this.pub = this.ec.curve.point(key.x, key.y);
@@ -86,0 +98,0 @@ return;

package.json

 {
   "name": "elliptic",
-  "version": "6.3.2",
+  "version": "6.3.3",
   "description": "EC cryptography",
@@ -38,2 +38,3 @@ "main": "lib/elliptic.js",
     "grunt-browserify": "^5.0.0",
+    "grunt-cli": "^1.2.0",
     "grunt-contrib-connect": "^1.0.0",
@@ -40,0 +41,0 @@ "grunt-contrib-copy": "^1.0.0",

README.md

@@ -122,4 +122,4 @@ # Elliptic [![Build Status](https://secure.travis-ci.org/indutny/elliptic.png)](http://travis-ci.org/indutny/elliptic) [![Coverage Status](https://coveralls.io/repos/indutny/elliptic/badge.svg?branch=master&service=github)](https://coveralls.io/github/indutny/elliptic?branch=master) [![Code Climate](https://codeclimate.com/github/indutny/elliptic/badges/gpa.svg)](https://codeclimate.com/github/indutny/elliptic)
 ```javascript
-var ECDH = require('elliptic').ec;
-var ec = new ECDH('curve25519');
+var EC = require('elliptic').ec;
+var ec = new EC('curve25519');
 
@@ -138,2 +138,24 @@ // Generate keys
 
+three and more members:
+```javascript
+var EC = require('elliptic').ec;
+var ec = new EC('curve25519');
+
+var A = ec.genKeyPair();
+var B = ec.genKeyPair();
+var C = ec.genKeyPair();
+
+var AB = A.getPublic().mul(B.getPrivate())
+var BC = B.getPublic().mul(C.getPrivate())
+var CA = C.getPublic().mul(A.getPrivate())
+
+var ABC = AB.mul(C.getPrivate())
+var BCA = BC.mul(A.getPrivate())
+var CAB = CA.mul(B.getPrivate())
+
+console.log(ABC.getX().toString(16))
+console.log(BCA.getX().toString(16))
+console.log(CAB.getX().toString(16))
+```
+
 NOTE: `.derive()` returns a [BN][1] instance.
@@ -140,0 +162,0 @@

No alert changes

Improved metrics

Total package byte prevSize

121465

increased by0.87%

Lines of code

3513

increased by0.34%

Number of lines in readme file

228

increased by10.68%

Worsened metrics

Dev dependency count

14

increased by7.69%

No dependency changes