gramjs/__tests__/crypto/calcKey.spec.js

const MTProtoState = require('../../gramjs/network/MTProtoState')

describe('calcKey function', () => {
    test('it should return 0x93355e3f1f50529b6fb93eaf97f29b69c16345f53621e9d45cd9a11ddfbebac9 and' +
        ' 11e94363ad7145222e2fbac4aaa27f01a6d832fb8115e89395bc43e23f868e47', () => {
        const authKey = Buffer.from('bbf38532a79cd64363b490b3bc5e258adfc1d1a67ef3c6d322caac603f90a15215b609' +
            '0ccb2226b477b24eb3412757d078d53c72b81864d1376ff20eb405a591781726495407628d8d611e37ecd6e23c605b57c5' +
            '3b40270bac7e7de0312a5deb3a1a16e65808b944fcf700d3788da10074d5c088e9e6aca119320d7f07c16d7e3c9fd48e9d' +
            '3f50ccc5276a30002d9919831bf783c368ce4b3e6f25f95875ec9315523cfcaa3ee50b1e40e5552cee2e16eec86b46308c' +
            '97f808d58f249479bb0ee1b7b08cf7f0fc047fbe38df6083558494e732dbf26d16b1538c22d361bf31d3dc4f2b2cb115b3' +
            'bfac1ec45c960e0854221cf484533025fa679a9b7a8ae11a00', 'hex')
        const msgKey = Buffer.from('00f285b0bf254b5242e075bf87806c51', 'hex')
        const aesKey = Buffer.from('93355e3f1f50529b6fb93eaf97f29b69c16345f53621e9d45cd9a11ddfbebac9', 'hex')
        const aesIv = Buffer.from('11e94363ad7145222e2fbac4aaa27f01a6d832fb8115e89395bc43e23f868e47', 'hex')
        const { key, iv } = new MTProtoState()._calcKey(authKey, msgKey, false)

        expect([aesKey, aesIv]).toEqual([key, iv])
    })
})