const crypto = require(
'crypto'
);
const algorithm =
'aes-256-cbc'
;
const key = crypto.randomBytes(32);
const iv = crypto.randomBytes(16);
function
encrypt(text) {
let cipher =
crypto.createCipheriv(
'aes-256-cbc'
, Buffer.from(key), iv);
let encrypted = cipher.update(text);
encrypted = Buffer.concat([encrypted, cipher.final()]);
return
{ iv: iv.toString(
'hex'
),
encryptedData: encrypted.toString(
'hex'
) };
}
function
decrypt(text) {
let iv = Buffer.from(text.iv,
'hex'
);
let encryptedText =
Buffer.from(text.encryptedData,
'hex'
);
let decipher = crypto.createDecipheriv(
'aes-256-cbc'
, Buffer.from(key), iv);
let decrypted = decipher.update(encryptedText);
decrypted = Buffer.concat([decrypted, decipher.final()]);
return
decrypted.toString();
}
var
output = encrypt("GeeksforGeeks");
console.log(output);
console.log(decrypt(output));