Question

我是Node js的新手。尝试运行一个简单的Node Js代码来加密字符串：

module.path.push('./node_modules');
var Cryptr = require("./node-crypt"),
    cryptr = new Cryptr('myTotalySecretKey');

var encryptedString = cryptr.encrypt('bacon');

cryptr.decrypt(encryptedString);

获取错误：

module.path.push('./node_modules');
            ^

TypeError: Cannot read property 'push' of undefined
    at Object.<anonymous> (D:\node samples\sample.js:3:13)
    at Module._compile (module.js:652:30)
    at Object.Module._extensions..js (module.js:663:10)
    at Module.load (module.js:565:32)
    at tryModuleLoad (module.js:505:12)
    at Function.Module._load (module.js:497:3)
    at Function.Module.runMain (module.js:693:10)
    at startup (bootstrap_node.js:191:16)
    at bootstrap_node.js:612:3

请帮助我。我只想加密和解密字符串。

Answer 1

来自：https://www.w3schools.com/nodejs/ref_crypto.asp 加密示例（从2018-09开始无效）：

var crypto = require('crypto');

var mykey = crypto.createCipher('aes-128-cbc', 'mypassword');
var mystr = mykey.update('abc', 'utf8', 'hex')
mystr += mykey.update.final('hex');

console.log(mystr);  //34feb914c099df25794bf9ccb85bea72

同意参考的样品无效。使用更高版本的API更新了加密

var crypto = require('crypto');

var cipher = crypto.createCipher('aes-128-cbc', 'mypassword');
var encrypted = cipher.update('abc', 'utf8', 'hex')
encrypted  += cipher.final('hex')

console.log(encrypted);

散列示例：发件人：https://node.readthedocs.io/en/latest/api/crypto/

var filename = process.argv[2];
var crypto = require('crypto');
var fs = require('fs');

var shasum = crypto.createHash('sha1');

var s = fs.createReadStream(filename);
s.on('data', function(d) {
  shasum.update(d);
});

s.on('end', function() {
  var d = shasum.digest('hex');
  console.log(d + '  ' + filename);
});

更新-不读取文件的普通HASH示例：

var crypto = require('crypto');

const plain = Buffer.from('some string', 'utf-8');
var shasum = crypto.createHash('sha1');
shasum.update(plain);
var hash = shasum.digest('hex');
console.log(hash);

我同时展示了加密和散列以演示深度。加密可以“撤消”，而哈希不能。还要注意-并非所有加密都是一样的。算法和密钥长度是需要与您的问题相匹配的重要决策。

Answer 2

我知道了，这是加密代码：

var crypto = require('crypto');
function encrypt(text){
    var cipher = crypto.createCipher('aes-256-cbc','d6f3Efeq');
    var crypted = cipher.update(text,'utf8','hex')
    crypted += cipher.final('hex');
    return crypted;
}

var c=encrypt('npci@123');
console.log("Encrypted string: "+c);

NodeJs-字符串加密/解密的代码错误

2 个答案: