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AES encryption example for Node.js
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| /** | |
| * Created by Awesometic | |
| * references: https://gist.github.com/ericchen/3081970 | |
| * This source is updated example code of above source code. | |
| * I added it two functions that are make random IV and make random 256 bit key. | |
| * It's encrypt returns Base64 encoded cipher, and also decrpyt for Base64 encoded Cipher | |
| */ | |
| var crypto = require('crypto'); | |
| var AESCrypt = {}; | |
| AESCrypt.encrypt = function(cryptKey, crpytIv, plainData) { | |
| var encipher = crypto.createCipheriv('aes-256-cbc', cryptKey, crpytIv), | |
| encrypted = encipher.update(plainData, 'utf8', 'binary'); | |
| encrypted += encipher.final('binary'); | |
| return new Buffer(encrypted, 'binary').toString('base64'); | |
| }; | |
| AESCrypt.decrypt = function(cryptKey, cryptIv, encrypted) { | |
| encrypted = new Buffer(encrypted, 'base64').toString('binary'); | |
| var decipher = crypto.createDecipheriv('aes-256-cbc', cryptKey, cryptIv), | |
| decrypted = decipher.update(encrypted, 'binary', 'utf8'); | |
| decrypted += decipher.final('utf8'); | |
| return decrypted; | |
| }; | |
| AESCrypt.makeIv = crypto.randomBytes(16); | |
| // Change this private symmetric key salt | |
| AESCrypt.KEY = crypto.createHash('sha256').update('Awesometic').digest(); | |
| module.exports = AESCrypt; |
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