使用以下的Node.js:
var crypto = require('crypto');
var encrypt = function (input, password, callback) {
var m = crypto.createHash('md5');
m.update(password);
var key = m.digest('hex');
m = crypto.createHash('md5');
m.update(password + key);
var iv = m.digest('hex');
console.log(iv);
var data = new Buffer(input, 'utf8').toString('binary');
var cipher = crypto.createCipheriv('aes-256-cbc', key, iv.slice(0,16));
var encrypted = cipher.update(data, 'binary') + cipher.final('binary');
var encoded = new Buffer(encrypted, 'binary').toString('base64');
callback(encoded);
};
var decrypt = function (input, password, callback) {
// Convert urlsafe base64 to normal base64
input = input.replace(/\-/g, '+').replace(/_/g, '/');
// Convert from base64 to binary string
var edata = new Buffer(input, 'base64').toString('binary');
// Create key from password
var m = crypto.createHash('md5');
m.update(password);
var key = m.digest('hex');
// Create iv from password and key
m = crypto.createHash('md5');
m.update(password + key);
var iv = m.digest('hex');
// Decipher encrypted data
var decipher = crypto.createDecipheriv('aes-256-cbc', key, iv.slice(0,16));
var decrypted = decipher.update(edata, 'binary') + decipher.final('binary');
var plaintext = new Buffer(decrypted, 'binary').toString('utf8');
callback(plaintext);
};
我执行了以下命令:
encrypt("uWeShxRrCKyK4pcs", "secret", function (encoded) {
console.log(encoded);
decrypt(encoded, "secret", function (output) {
console.log(output);
});
});
加密似乎运行良好,但是当我尝试解密时,我收到以下错误:
错误:error:06065064:digital envelope routines:EVP_DecryptFinal_ex:bad decrypt at Error (native) at Decipheriv.Cipher.final (crypto.js:202:26)
我对密码学还不太了解,所以不知道为什么会出现这个错误。我现在只需要修复它。