how to use with ecb mode without IV?

Hi,

I am trying to port a code using MCrypt (which is now deprecated):

const pher = new MCrypt("rijndael-128", "ecb") // ECB, no IV

function encrypt(rawData, key) { pher.open(key) return pher.encrypt(rawData) // Buffer }

function decrypt(encData, key) { pher.open(key) return pher.decrypt(encData) // Buffer }

My cryptian code:

const {algorithm, mode} = require("cryptian") const aes128 = new algorithm.Rijndael128() const cipher = new mode.ecb.Cipher(aes128, null) // TypeError thrown: Value has got incorrect type. Should be Buffer or String.

function encrypt(rawData, key) { cipher.setKey(key) return cipher.encrypt(rawData) }

function decrypt(encData, key) { cipher.setKey(key) return cipher.decrypt(encData) }

How should I use cryptian with ecb mode without IV? I tried to search in examples but did not seem to find one.

Regards

You can use buffer of zero bytes to skip IV. It is not recomended but It can use to be compatible with peer.

// zero bytes
const iv = Buffer.alloc(aes128.getBlockSize());