icryptor/src/icryptor.js

Encrypt tools for private accounts

#!/usr/bin/env node

const path = require('path')
const adm_zip = require('adm-zip')
const readline = require('readline-sync')
const chacha = require('chacha-js')
const blake2b = require('blake2b')
const fs = require('fs')
const program = require('commander')

function b2b(data) {
    var h=blake2b(32)
    h.update(data)
    return Buffer.from(h.digest())
}

var nonce=Buffer.alloc(12)
nonce.fill(0)

function cc(data,key) {
    var c=new chacha.ChaCha20(key,nonce)
    return c.update(data)
}

program
    .version("1.0.1")
    .option('-d, --decode [type]', 'decode')
    .option('-e, --encode [type]', 'encode')
    .option('-p, --password [type]', 'password')
    .option('-c, --count [type]', 'encrypt count')
    .parse(process.argv);


if(program.encode) {
    program.encode= path.resolve(process.cwd(),program.encode)
    console.log('encode: '+program.encode)
}

if(program.decode) {
    program.decode = path.resolve(process.cwd(),program.decode)
    console.log('decode: '+program.decode)
}

if(!program.password) {
    program.password=readline.question("Input Password: ",{
        hideEchoBack: true,
    })
}

if(!program.count) {
    program.count = 100
}

var password = Buffer.from(program.password,"binary")

var passwords=[]

for(var i=0; i<program.count; i++) {
    if(i===0) {
        passwords.push(b2b(password))
    } else {
        passwords.push(b2b(passwords[i-1]))
    }
}

if(program.encode) {
    var zip = new adm_zip()
    zip.addLocalFolder(program.encode)
    zip.writeZip(program.encode+"_zip",true)
    var data=fs.readFileSync(program.encode+"_zip")
    for(var i=0;i<program.count;i++) {
        data=cc(data,passwords[i])
    }
    fs.writeFileSync(program.encode+"_c",data)
    fs.unlinkSync(program.encode+"_zip")
}

if (program.decode) {
    var data=fs.readFileSync(program.decode)
    for(var i=0;i<program.count;i++) {
        data=cc(data,passwords[program.count-i-1])
    }
    fs.writeFileSync(program.decode+"_zip",data)
    var unzip = new adm_zip(program.decode+"_zip")
    unzip.extractAllTo(program.decode+"_p",true)
    fs.unlinkSync(program.decode+"_zip")
}