[英]How to decrypt 3des in nodejs
此代码对我有用,但可以加密吗? 我在数据库中哈希了密码,我需要解密,我既拥有密钥又拥有哈希。
const crypto = require('crypto');
const md5 = text => {
return crypto
.createHash('md5')
.update(text)
.digest();
}
const encrypt = (text, secretKey) => {
secretKey = md5(secretKey);
console.log(secretKey.toString('base64'));
secretKey = Buffer.concat([secretKey, secretKey.slice(0, 8)]); // properly expand 3DES key from 128 bit to 192 bit
const cipher = crypto.createCipheriv('des-ede3', secretKey, '');
const encrypted = cipher.update(text, 'utf8', 'base64');
return encrypted + cipher.final('base64');
};
const encrypted = encrypt('testtext', 'testkey');
console.log(encrypted);
谢谢
这段代码可以满足您的需求,我们将创建一个解密函数,该函数使用相同的算法(显然还有密钥!)进行解密:
const crypto = require('crypto');
const md5 = text => {
return crypto
.createHash('md5')
.update(text)
.digest();
}
const encrypt = (text, secretKey) => {
secretKey = md5(secretKey);
console.log(secretKey.toString('base64'));
secretKey = Buffer.concat([secretKey, secretKey.slice(0, 8)]); // properly expand 3DES key from 128 bit to 192 bit
const cipher = crypto.createCipheriv('des-ede3', secretKey, '');
const encrypted = cipher.update(text, 'utf8', 'base64');
return encrypted + cipher.final('base64');
};
const decrypt = (encryptedBase64, secretKey) => {
secretKey = md5(secretKey);
secretKey = Buffer.concat([secretKey, secretKey.slice(0, 8)]); // properly expand 3DES key from 128 bit to 192 bit
const decipher = crypto.createDecipheriv('des-ede3', secretKey, '');
let decrypted = decipher.update(encryptedBase64, 'base64');
decrypted += decipher.final();
return decrypted;
};
const encrypted = encrypt('testtext', 'testkey');
console.log("Decrypted text:", decrypt(encrypted, 'testkey'));
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