Support functions for Elliptic Curve Cryptography
This commit is contained in:
Ismael Bejarano
Sanjana Rajan
parent
54b79be0b0
commit
a8e8271185
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@ -15,6 +15,7 @@ module.exports = function(grunt) {
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'src/crypto/public_key/elgamal.js',
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'src/crypto/public_key/index.js',
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'src/crypto/public_key/rsa.js',
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'src/crypto/public_key/elliptic/*.js',
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'src/crypto/*.js',
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'src/encoding/**/*.js',
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'src/hkp/**/*.js',
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@ -32,7 +32,6 @@
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"test": "grunt test"
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},
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"devDependencies": {
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"aes": "^0.1.0",
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"asmcrypto-lite": "^1.0.0",
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"babel-core": "^6.26.0",
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"babel-preset-es2015": "^6.3.13",
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118
src/crypto/public_key/elliptic/curves.js
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118
src/crypto/public_key/elliptic/curves.js
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@ -0,0 +1,118 @@
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// OpenPGP.js - An OpenPGP implementation in javascript
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// Copyright (C) 2015-2016 Decentral
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 3.0 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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// Wrapper of an instance of an Elliptic Curve
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/**
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* @requires crypto/public_key/elliptic/key
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* @requires crypto/public_key/jsbn
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* @requires enums
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* @requires util
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* @module crypto/public_key/elliptic/curve
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*/
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'use strict';
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import {ec as EC} from 'elliptic';
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import {KeyPair} from './key.js';
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import BigInteger from '../jsbn.js';
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import enums from '../../../enums.js';
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import util from '../../../util.js';
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function Curve(name, {oid, hash, cipher}) {
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this.curve = new EC(name);
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this.name = name;
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this.oid = oid;
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this.hash = hash;
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this.cipher = cipher;
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}
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Curve.prototype.keyFromPrivate = function (priv) {
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return new KeyPair(this.curve, {priv: priv});
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};
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Curve.prototype.keyFromPublic = function (pub) {
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return new KeyPair(this.curve, {pub: pub});
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};
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Curve.prototype.genKeyPair = function () {
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var r = this.curve.genKeyPair();
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return new KeyPair(this.curve, {
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pub: r.getPublic().encode(),
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priv: r.getPrivate().toArray()
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});
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};
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const curves = {
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p256: {
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oid: util.bin2str([0x2A, 0x86, 0x48, 0xCE, 0x3D, 0x03, 0x01, 0x07]),
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bits: 256,
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hash: enums.hash.sha256,
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cipher: enums.symmetric.aes128,
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},
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p384: {
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oid: util.bin2str([0x2B, 0x81, 0x04, 0x00, 0x22]),
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bits: 384,
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hash: enums.hash.sha384,
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cipher: enums.symmetric.aes192,
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},
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p521: {
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oid: util.bin2str([0x2B, 0x81, 0x04, 0x00, 0x23]),
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bits: 521,
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hash: enums.hash.sha512,
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cipher: enums.symmetric.aes256,
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},
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secp256k1: {
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oid: util.bin2str([0x2B, 0x81, 0x04, 0x00, 0x0A]),
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bits: 256,
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hash: enums.hash.sha256,
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cipher: enums.symmetric.aes128,
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}
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};
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function get(oid_or_name) {
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for (var name in curves) {
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if (curves[name].oid === oid_or_name || name === oid_or_name) {
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return new Curve(name, {
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oid: curves[name].oid,
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hash: curves[name].hash,
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cipher: curves[name].cipher
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});
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}
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}
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throw new Error('Not valid curve');
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}
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function generate(curve) {
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return new Promise(function (resolve) {
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curve = get(curve);
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var keyPair = curve.genKeyPair();
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resolve({
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oid: curve.oid,
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R: new BigInteger(keyPair.getPublic()),
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r: new BigInteger(keyPair.getPrivate()),
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hash: curve.hash,
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cipher: curve.cipher
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});
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});
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}
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module.exports = {
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Curve: Curve,
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generate: generate,
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get: get
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};
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33
src/crypto/public_key/elliptic/index.js
Normal file
33
src/crypto/public_key/elliptic/index.js
Normal file
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@ -0,0 +1,33 @@
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// OpenPGP.js - An OpenPGP implementation in javascript
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// Copyright (C) 2015-2016 Decentral
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 3.0 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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// Function to access Elliptic Curve Cryptography
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/**
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* @requires crypto/public_key/elliptic/curve
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* @requires crypto/public_key/elliptic/ecdsa
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* @module crypto/public_key/elliptic
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*/
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'use strict';
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import {get, generate} from './curves.js';
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module.exports = {
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get: get,
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generate: generate
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};
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74
src/crypto/public_key/elliptic/key.js
Normal file
74
src/crypto/public_key/elliptic/key.js
Normal file
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@ -0,0 +1,74 @@
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// OpenPGP.js - An OpenPGP implementation in javascript
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// Copyright (C) 2015-2016 Decentral
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 3.0 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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// Wrapper for a KeyPair of an Elliptic Curve
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/**
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* @requires crypto/hash
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* @requires util
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* @module crypto/public_key/elliptic/key
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*/
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'use strict';
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import hash from '../../hash';
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import util from '../../../util.js';
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function KeyPair(curve, options) {
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this.curve = curve;
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this.keyPair = this.curve.keyPair(options);
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}
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KeyPair.prototype.sign = function (message, hash_algo) {
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if (typeof message === 'string') {
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message = util.str2Uint8Array(message);
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}
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const digest = (typeof hash_algo === 'undefined') ? message : hash.digest(hash_algo, message);
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const signature = this.keyPair.sign(digest);
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return {
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r: signature.r.toArray(),
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s: signature.s.toArray()
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};
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};
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KeyPair.prototype.verify = function (message, signature, hash_algo) {
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if (typeof message === 'string') {
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message = util.str2Uint8Array(message);
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}
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const digest = (typeof hash_algo === 'undefined') ? message : hash.digest(hash_algo, message);
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return this.keyPair.verify(digest, signature);
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};
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KeyPair.prototype.derive = function (pub) {
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return this.keyPair.derive(pub.keyPair.getPublic()).toArray();
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};
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KeyPair.prototype.getPublic = function () {
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return this.keyPair.getPublic().encode();
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};
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KeyPair.prototype.getPrivate = function () {
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return this.keyPair.getPrivate().toArray();
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};
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KeyPair.prototype.isValid = function () {
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return this.keyPair.validate().result;
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};
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module.exports = {
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KeyPair: KeyPair
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};
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@ -1,6 +1,7 @@
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/**
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* @requires crypto/public_key/dsa
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* @requires crypto/public_key/elgamal
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* @requires crypto/public_key/elliptic
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* @requires crypto/public_key/rsa
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* @module crypto/public_key
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*/
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@ -11,11 +12,14 @@
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import rsa from './rsa.js';
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/** @see module:crypto/public_key/elgamal */
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import elgamal from './elgamal.js';
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/** @see module:crypto/public_key/elliptic */
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import elliptic from './elliptic';
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/** @see module:crypto/public_key/dsa */
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import dsa from './dsa.js';
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export default {
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rsa: rsa,
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elgamal: elgamal,
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elliptic: elliptic,
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dsa: dsa
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};
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196
test/crypto/elliptic.js
Normal file
196
test/crypto/elliptic.js
Normal file
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@ -0,0 +1,196 @@
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'use strict';
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var openpgp = typeof window !== 'undefined' && window.openpgp ? window.openpgp : require('../../dist/openpgp');
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var expect = require('chai').expect;
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describe('Elliptic Curve Cryptography', function () {
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var elliptic_curves = openpgp.crypto.publicKey.elliptic;
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var key_data = {
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p256: {
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priv: new Uint8Array([
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0x2B, 0x48, 0x2B, 0xE9, 0x88, 0x74, 0xE9, 0x49,
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0x1F, 0x89, 0xCC, 0xFF, 0x0A, 0x26, 0x05, 0xA2,
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0x3C, 0x2A, 0x35, 0x25, 0x26, 0x11, 0xD7, 0xEA,
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0xA1, 0xED, 0x29, 0x95, 0xB5, 0xE1, 0x5F, 0x1D]),
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pub: new Uint8Array([0x04,
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0x80, 0x2C, 0x40, 0x76, 0x31, 0x20, 0xB6, 0x9B,
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0x48, 0x3B, 0x05, 0xEB, 0x6C, 0x1E, 0x3F, 0x49,
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0x84, 0xF7, 0xD2, 0xAD, 0x16, 0xA1, 0x6F, 0x62,
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0xFD, 0xCA, 0xEC, 0xB4, 0xA0, 0xBD, 0x4C, 0x1A,
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0x6F, 0xAA, 0xE7, 0xFD, 0xC4, 0x7D, 0x89, 0xCC,
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0x06, 0xCA, 0xFE, 0xAE, 0xCD, 0x0E, 0x9E, 0x62,
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0x57, 0xA4, 0xC3, 0xE7, 0x5E, 0x69, 0x10, 0xEE,
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0x67, 0xC2, 0x09, 0xF9, 0xEF, 0xE7, 0x9E, 0x56])
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},
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p384: {
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priv: new Uint8Array([
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0xB5, 0x38, 0xDA, 0xF3, 0x77, 0x58, 0x3F, 0x94,
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0x5B, 0xC2, 0xCA, 0xC6, 0xA9, 0xFC, 0xAA, 0x3F,
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0x97, 0xB0, 0x54, 0x26, 0x10, 0xB4, 0xEC, 0x2A,
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0xA7, 0xC1, 0xA3, 0x4B, 0xC0, 0xBD, 0xFE, 0x3E,
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0xF1, 0xBE, 0x76, 0xCB, 0xE8, 0xAB, 0x3B, 0xBD,
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0xB6, 0x84, 0xC7, 0x8B, 0x91, 0x2F, 0x76, 0x8B]),
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pub: new Uint8Array([0x04,
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0x44, 0x83, 0xA0, 0x3E, 0x5B, 0x0A, 0x0D, 0x9B,
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0xA0, 0x06, 0xDF, 0x38, 0xC7, 0x64, 0xCD, 0x62,
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0x7D, 0x5E, 0x3D, 0x3B, 0x50, 0xF5, 0x06, 0xC7,
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0xF7, 0x9B, 0xF0, 0xDE, 0xB1, 0x0C, 0x64, 0x74,
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0x0D, 0x03, 0x67, 0x24, 0xA0, 0xFF, 0xD1, 0x3D,
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0x03, 0x96, 0x48, 0xE7, 0x73, 0x5E, 0xF1, 0xC0,
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0x62, 0xCC, 0x33, 0x5A, 0x2A, 0x66, 0xA7, 0xAB,
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0xCA, 0x77, 0x52, 0xB8, 0xCD, 0xB5, 0x91, 0x16,
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0xAF, 0x42, 0xBB, 0x79, 0x0A, 0x59, 0x51, 0x68,
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0x8E, 0xEA, 0x32, 0x7D, 0x4A, 0x4A, 0xBB, 0x26,
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0x13, 0xFB, 0x95, 0xC0, 0xB1, 0xA4, 0x54, 0xCA,
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0xFA, 0x85, 0x8A, 0x4B, 0x58, 0x7C, 0x61, 0x39])
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},
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p521: {
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priv: new Uint8Array([
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0x00, 0xBB, 0x35, 0x27, 0xBC, 0xD6, 0x7E, 0x35,
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0xD5, 0xC5, 0x99, 0xC9, 0xB4, 0x6C, 0xEE, 0xDE,
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0x79, 0x2D, 0x77, 0xBD, 0x0A, 0x08, 0x9A, 0xC2,
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0x21, 0xF8, 0x35, 0x1C, 0x49, 0x5C, 0x40, 0x11,
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0xAC, 0x95, 0x2A, 0xEE, 0x91, 0x3A, 0x60, 0x5A,
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0x25, 0x5A, 0x95, 0x38, 0xDC, 0xEB, 0x59, 0x8E,
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0x33, 0xAD, 0xC0, 0x0B, 0x56, 0xB1, 0x06, 0x8C,
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0x57, 0x48, 0xA3, 0x73, 0xDB, 0xE0, 0x19, 0x50,
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0x2E, 0x79]),
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pub: new Uint8Array([0x04,
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0x01, 0x0D, 0xD5, 0xCA, 0xD8, 0xB0, 0xEF, 0x9F,
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0x2B, 0x7E, 0x58, 0x99, 0xDE, 0x05, 0xF6, 0xF6,
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0x64, 0x6B, 0xCD, 0x59, 0x2E, 0x39, 0xB8, 0x82,
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0xB3, 0x13, 0xE6, 0x7D, 0x50, 0x85, 0xC3, 0xFA,
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0x93, 0xA5, 0x3F, 0x92, 0x85, 0x42, 0x36, 0xC0,
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0x83, 0xC9, 0xA4, 0x38, 0xB3, 0xD1, 0x99, 0xDA,
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0xE1, 0x02, 0x37, 0x7A, 0x3A, 0xC2, 0xB4, 0x55,
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0xEC, 0x1C, 0x0F, 0x00, 0x97, 0xFC, 0x75, 0x93,
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0xFE, 0x87, 0x00, 0x7D, 0xBE, 0x1A, 0xF5, 0xF9,
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0x57, 0x5C, 0xF2, 0x50, 0x2D, 0x14, 0x32, 0xEE,
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0x9B, 0xBE, 0xB3, 0x0E, 0x12, 0x2F, 0xF8, 0x85,
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0x11, 0x1A, 0x4F, 0x88, 0x50, 0xA4, 0xDB, 0x37,
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0xA6, 0x53, 0x5C, 0xB7, 0x87, 0xA6, 0x06, 0x21,
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0x15, 0xCC, 0x12, 0xC0, 0x1C, 0x83, 0x6F, 0x7B,
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0x5A, 0x8A, 0x36, 0x4E, 0x46, 0x9E, 0x54, 0x3F,
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0xE2, 0xF7, 0xED, 0x63, 0xC9, 0x92, 0xA4, 0x38,
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0x2B, 0x9C, 0xE2, 0xB7])
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},
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secp256k1: {
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priv: new Uint8Array([
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0x9E, 0xB0, 0x30, 0xD6, 0xE1, 0xCE, 0xAA, 0x0B,
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0x7B, 0x8F, 0xDE, 0x5D, 0x91, 0x4D, 0xDC, 0xA0,
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0xAD, 0x05, 0xAB, 0x8F, 0x87, 0x9B, 0x57, 0x48,
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0xAE, 0x8A, 0xE0, 0xF9, 0x39, 0xBD, 0x24, 0x00]),
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pub: new Uint8Array([0x04,
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0xA8, 0x02, 0x35, 0x2C, 0xB7, 0x24, 0x95, 0x51,
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0x0A, 0x65, 0x26, 0x7D, 0xDF, 0xEA, 0x64, 0xB3,
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0xA8, 0xE1, 0x4F, 0xDD, 0x12, 0x84, 0x7E, 0x59,
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0xDB, 0x81, 0x0F, 0x89, 0xED, 0xFB, 0x29, 0xFB,
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0x07, 0x60, 0x29, 0x7D, 0x39, 0x8F, 0xB8, 0x68,
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0xF0, 0xFD, 0xA6, 0x67, 0x83, 0x55, 0x75, 0x7D,
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0xB8, 0xFD, 0x0B, 0xDF, 0x76, 0xCE, 0xBC, 0x95,
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0x4B, 0x92, 0x26, 0xFC, 0xAA, 0x7A, 0x7C, 0x3F])
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}
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};
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var signature_data = {
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priv: new Uint8Array([
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0x14, 0x2B, 0xE2, 0xB7, 0x4D, 0xBD, 0x1B, 0x22,
|
||||
0x4D, 0xDF, 0x96, 0xA4, 0xED, 0x8E, 0x5B, 0xF9,
|
||||
0xBD, 0xD3, 0xFE, 0xAE, 0x3F, 0xB2, 0xCF, 0xEE,
|
||||
0xA7, 0xDB, 0xD0, 0x58, 0xA7, 0x47, 0xF8, 0x7C]),
|
||||
pub: new Uint8Array([0x04,
|
||||
0xD3, 0x36, 0x11, 0xF9, 0xF9, 0xAB, 0x39, 0x23,
|
||||
0x15, 0xB9, 0x71, 0x7B, 0x2A, 0x0B, 0xA6, 0x6D,
|
||||
0x39, 0x6D, 0x64, 0x87, 0x22, 0x9A, 0xA3, 0x0A,
|
||||
0x55, 0x27, 0x14, 0x2E, 0x1C, 0x61, 0xA2, 0x8A,
|
||||
0xDA, 0x4E, 0x8F, 0xCE, 0x04, 0xBE, 0xE2, 0xC3,
|
||||
0x82, 0x0B, 0x21, 0x4C, 0xBC, 0xED, 0x0E, 0xE2,
|
||||
0xF1, 0x14, 0x33, 0x9A, 0x86, 0x5F, 0xC6, 0xF9,
|
||||
0x8E, 0x95, 0x24, 0x10, 0x1F, 0x0F, 0x13, 0xE4]),
|
||||
message: new Uint8Array([
|
||||
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
|
||||
0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F]),
|
||||
signature: {
|
||||
r: new Uint8Array([
|
||||
0xF1, 0x78, 0x1C, 0xA5, 0x13, 0x21, 0x0C, 0xBA,
|
||||
0x6F, 0x18, 0x5D, 0xB3, 0x01, 0xE2, 0x17, 0x1B,
|
||||
0x67, 0x65, 0x7F, 0xC6, 0x1F, 0x50, 0x12, 0xFB,
|
||||
0x2F, 0xD3, 0xA4, 0x29, 0xE3, 0xC2, 0x44, 0x9F]),
|
||||
s: new Uint8Array([
|
||||
0x7F, 0x08, 0x69, 0x6D, 0xBB, 0x1B, 0x9B, 0xF2,
|
||||
0x62, 0x1C, 0xCA, 0x80, 0xC6, 0x15, 0xB2, 0xAE,
|
||||
0x60, 0x50, 0xD1, 0xA7, 0x1B, 0x32, 0xF3, 0xB1,
|
||||
0x01, 0x0B, 0xDF, 0xC6, 0xAB, 0xF0, 0xEB, 0x01])
|
||||
}
|
||||
};
|
||||
describe('Basic Operations', function () {
|
||||
it('Creating curve with name', function (done) {
|
||||
var names = ['p256', 'p384', 'p521', 'secp256k1'];
|
||||
names.forEach(function (name) {
|
||||
expect(elliptic_curves.get(name)).to.exist;
|
||||
});
|
||||
done();
|
||||
});
|
||||
it('Creating curve from oid', function (done) {
|
||||
var oids = ['2A8648CE3D030107', '2B81040022', '2B81040023', '2B8104000A'];
|
||||
oids.forEach(function (oid) {
|
||||
expect(elliptic_curves.get(openpgp.util.hex2bin(oid))).to.exist;
|
||||
});
|
||||
done();
|
||||
});
|
||||
it('Creating KeyPair', function (done) {
|
||||
var names = ['p256', 'p384', 'p521', 'secp256k1'];
|
||||
names.forEach(function (name) {
|
||||
var curve = elliptic_curves.get(name);
|
||||
var keyPair = curve.genKeyPair();
|
||||
expect(keyPair).to.exist;
|
||||
expect(keyPair.isValid()).to.be.true;
|
||||
});
|
||||
done();
|
||||
});
|
||||
it('Creating KeyPair from data', function (done) {
|
||||
for (var name in key_data) {
|
||||
var pair = key_data[name];
|
||||
var curve = elliptic_curves.get(name);
|
||||
expect(curve).to.exist;
|
||||
var keyPair = curve.keyFromPrivate(pair.priv);
|
||||
expect(keyPair).to.exist;
|
||||
var pub = keyPair.getPublic();
|
||||
expect(pub).to.exist;
|
||||
expect(openpgp.util.hexidump(pub)).to.equal(openpgp.util.hexidump(pair.pub));
|
||||
}
|
||||
done();
|
||||
});
|
||||
it('Signature verification', function (done) {
|
||||
var curve = elliptic_curves.get('p256');
|
||||
var key = curve.keyFromPublic(signature_data.pub);
|
||||
expect(key.verify(signature_data.message, signature_data.signature, 8)).to.be.true;
|
||||
done();
|
||||
});
|
||||
it('Invalid signature', function (done) {
|
||||
var curve = elliptic_curves.get('p256');
|
||||
var key = curve.keyFromPublic(key_data.p256.pub);
|
||||
expect(key.verify(signature_data.message, signature_data.signature, 8)).to.be.false;
|
||||
done();
|
||||
});
|
||||
it('Signature generation', function (done) {
|
||||
var curve = elliptic_curves.get('p256');
|
||||
var key = curve.keyFromPrivate(key_data.p256.priv);
|
||||
var signature = key.sign(signature_data.message, 8);
|
||||
key = curve.keyFromPublic(key_data.p256.pub);
|
||||
expect(key.verify(signature_data.message, signature, 8)).to.be.true;
|
||||
done();
|
||||
});
|
||||
it('Shared secret generation', function (done) {
|
||||
var curve = elliptic_curves.get('p256');
|
||||
var key1 = curve.keyFromPrivate(key_data.p256.priv);
|
||||
var key2 = curve.keyFromPublic(signature_data.pub);
|
||||
var shared1 = openpgp.util.hexidump(key1.derive(key2));
|
||||
key1 = curve.keyFromPublic(key_data.p256.pub);
|
||||
key2 = curve.keyFromPrivate(signature_data.priv);
|
||||
var shared2 = openpgp.util.hexidump(key2.derive(key1));
|
||||
expect(shared1).to.equal(shared2);
|
||||
done();
|
||||
});
|
||||
});
|
||||
});
|
||||
|
|
@ -3,6 +3,7 @@ describe('Crypto', function () {
|
|||
require('./hash');
|
||||
require('./random.js');
|
||||
require('./crypto.js');
|
||||
require('./elliptic.js');
|
||||
require('./pkcs5.js');
|
||||
require('./rfc3394.js');
|
||||
});
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user