好的斯坦福Javascript加密库（SJCL）的例子？ （JS加密） [英] Good Stanford Javascript Crypto Library (SJCL) examples? (JS cryptography)

问题描述

我正在寻找一种在Javascript中执行客户端加密的方法（保留 http：//www.matasano。 com / articles / javascript-cryptography / ），并找到 SJCL 。但我似乎无法找到良好的代码示例。任何指针？

I am looking at a way to do client-side cryptography in Javascript (keeping http://www.matasano.com/articles/javascript-cryptography/ in mind) and have found SJCL. But I seem unable to find good code examples for it. Any pointers?

推荐答案

我去年做了一个题为开发人员的JavaScript和Web加密技术指南​​，并且演示网站在线 https://jswebcrypto.azurewebsites.net/

I did a presentation last year titled Developer's Guide to JavaScript and Web Cryptography and have the demo site online at https://jswebcrypto.azurewebsites.net/

这包括OpenSSL命令行的简单哈希，HMAC，PBKDF2和AES示例（作为基线） SJCL ， CryptoJS ， Node.js加密，甚至 W3C Web加密API

This includes simple Hash, HMAC, PBKDF2 and AES examples for OpenSSL command line (as a baseline) SJCL, CryptoJS, Node.js Crypto, and even W3C Web Cryptography API

以下是SJCL示例：

Hash

var out = sjcl.hash.sha1.hash("The quick brown fox jumps over the lazy dog");
var hash = sjcl.codec.hex.fromBits(out)
// "2fd4e1c67a2d28fced849ee1bb76e7391b93eb12"

HMAC

var key = sjcl.codec.utf8String.toBits("key");
var out = (new sjcl.misc.hmac(key, sjcl.hash.sha256)).mac("The quick brown fox jumps over the lazy dog");
var hmac = sjcl.codec.hex.fromBits(out)
// "f7bc83f430538424b13298e6aa6fb143ef4d59a14946175997479dbc2d1a3cd8"

PBKDF2

var hmacSHA1 = function (key) {
    var hasher = new sjcl.misc.hmac( key, sjcl.hash.sha1 );
    this.encrypt = function () {
        return hasher.encrypt.apply( hasher, arguments );
    };
};

var passwordSalt = sjcl.codec.hex.toBits( "cf7488cd1e48e84990f51b3f121e161318ba2098aa6c993ded1012c955d5a3e8" );
var derivedKey = sjcl.misc.pbkdf2( "password", passwordSalt, 100, 256, hmacSHA1 );
var hexKey = sjcl.codec.hex.fromBits( derivedKey );
// c12b2e03a08f3f0d23f3c4429c248c275a728814053a093835e803bc8e695b4e

注意：这需要您 sha1.js 以及sjcl.js。

Note: This requires you in include sha1.js in addition to sjcl.js.

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