[JavaScript]CryptoJSでAES暗号のsaltとパスフレーズからkeyを求める ref: http://qiita.com/yaegaki/items/9701317a76a35bea1684

file0.js

var encrypted = CryptoJS.AES.encrypt('message', 'pass');
console.log(encrypted.salt.toString());  // 467c08b2364309e8
console.log(encrypted.key.toString());   // 6e475a9672994638c4231bd750ab7aceeb9004229f0a26c3622a2045deb789e9

file1.js

var aesDecryptor = CryptoJS.algo.AES.createDecryptor(key, { iv: iv });

var plaintextPart1 = aesDecryptor.process(ciphertextPart1);
var plaintextPart2 = aesDecryptor.process(ciphertextPart2);
var plaintextPart3 = aesDecryptor.process(ciphertextPart3);
var plaintextPart4 = aesDecryptor.process(ciphertextPart4);
var plaintextPart5 = aesDecryptor.finalize();

file2.js

var key = CryptoJS.kdf.OpenSSL.execute(pass, 8, 4, salt).key;