JavaScript加密庫 jsCrypto

jsCrypto 是一個實現了一些常用加密方法的 JavaScript 庫，支持的算法包括：

• Symmetric encryption: AES, DES, 3DES,
• Encryption mode: ECB, CBC, CTR,
• Digest algorithm: SHA-1, SHA256,
• Message Authentication Code (MAC): HMAC, CBCMAC, CMAC
• Random number generator (RNG): FIPS186, X9.17,
• Public key cryptography: RSA, DSA, ECC, CPK, IBE

功能特性：

• Performance heavily enhanced.
• Object oriented architecture, with a single namespace, and you can extend the framework with your own algorithms.
• Support Init, Upate, Final pattern for bulk data processing for most algorithms.
• Parllellized computing, even long term operation will not block the browser.
• Support a key storage interface, with multiple implementations.
• Support local file system access, users can upload a local file into the browser DOM tree and then processed with jscrypto algorithms.

這個庫也可以在 ActionScript 下使用。

示例代碼：

var cipher = jscrypto.aes;
var key = 'password';
var iv = 'initialvector';
var encryptor = new jscrypto.cbcmode.encryptor(cipher, key, iv);
var ctext = new Array();

ctext.concat(encryptor.update('hello'));
ctext.concat(encryptor.update('world'));
ctext.concat(encryptor.final());

document.write(ctext);

項目主頁：http://www.baiduhome.net/lib/view/home/1328022669327