gramjs/__tests__/crypto/AES.spec.js

const AES = require('../../gramjs/crypto/AES')
const AESModeCTR = require('../../gramjs/crypto/AESCTR')
describe('IGE encrypt function', () => {
    test('it should return 4a657a834edc2956ec95b2a42ec8c1f2d1f0a6028ac26fd830ed23855574b4e69dd1a2be2ba18a53a49b879b2' +
        '45e1065e14b6e8ac5ba9b24befaff3209b77b5f', () => {
        const plainText = Buffer.from('this should hold a 64 characters long string. only 10 more left.')
        const iv = Buffer.from('the iv needs 32 characters long.')
        const key = Buffer.from('the key needs 32 characters long')
        const encrypted = Buffer.from('4a657a834edc2956ec95b2a42ec8c1f2d1f0a6028ac26fd830ed23855574b4e69dd1a2be' +
            '2ba18a53a49b879b245e1065e14b6e8ac5ba9b24befaff3209b77b5f', 'hex')
        expect(AES.encryptIge(plainText, key, iv)).toEqual(encrypted)
    })
})
describe('IGE decrypt function', () => {
    test('it should return "this should hold a 64 characters long string. only 10 more left."', () => {
        const encrypted = Buffer.from('4a657a834edc2956ec95b2a42ec8c1f2d1f0a6028ac26fd830ed23855574b4e69dd1a2be' +
            '2ba18a53a49b879b245e1065e14b6e8ac5ba9b24befaff3209b77b5f', 'hex')
        const iv = Buffer.from('the iv needs 32 characters long.')
        const key = Buffer.from('the key needs 32 characters long')
        const plainText = Buffer.from('this should hold a 64 characters long string. only 10 more left.')
        expect(AES.decryptIge(encrypted, key, iv)).toEqual(plainText)

    })
})
describe('CTR encrypt function', () => {
    test('it should return 5f40f14f8b70178f70e8045b44eff5f1b148714f23cd and' +
        ' cd0779d148b466935cf573450212451692bc82fccd5b106e53', () => {
        const encryptKey = Buffer.from('the key needs 32 characters long')
        const encryptIv = Buffer.from('the iv does not.')
        const encryptor = new AESModeCTR(encryptKey, encryptIv)
        const firstData = Buffer.from('this can be any length')
        const firstResult = encryptor.encrypt(firstData)
        const secondData = Buffer.from('this also can be anything')
        const secondResult = encryptor.encrypt(secondData)

        const outputFirst = Buffer.from('5f40f14f8b70178f70e8045b44eff5f1b148714f23cd', 'hex')
        const outputSecond = Buffer.from('cd0779d148b466935cf573450212451692bc82fccd5b106e53', 'hex')
        expect([firstResult, secondResult]).toEqual([outputFirst, outputSecond])
    })
})