deemix-js/deemix/utils/crypto.js
2021-05-16 21:40:14 +02:00

42 lines
1.2 KiB
JavaScript

const crypto = require('crypto')
function _md5 (data, type = 'binary') {
let md5sum = crypto.createHash('md5')
md5sum.update(Buffer.from(data, type))
return md5sum.digest('hex')
}
function _ecbCrypt (key, data) {
let cipher = crypto.createCipheriv("aes-128-ecb", Buffer.from(key), Buffer.from(""));
return Buffer.concat([cipher.update(data, 'binary'), cipher.final()]).toString("hex").toLowerCase();
}
function _ecbDecrypt (key, data) {
let cipher = crypto.createDecipheriv("aes-128-ecb", Buffer.from(key), Buffer.from(""));
return Buffer.concat([cipher.update(data, 'binary'), cipher.final()]).toString("hex").toLowerCase();
}
/*
function generateBlowfishKey(trackId) {
const SECRET = 'g4el58wc0zvf9na1';
const idMd5 = _md5(trackId.toString(), 'ascii')
let bfKey = ''
for (let i = 0; i < 16; i++) {
bfKey += String.fromCharCode(idMd5.charCodeAt(i) ^ idMd5.charCodeAt(i + 16) ^ SECRET.charCodeAt(i))
}
return bfKey;
}
function decryptChunk(chunk, blowFishKey){
var cipher = crypto.createDecipheriv('bf-cbc', blowFishKey, Buffer.from([0, 1, 2, 3, 4, 5, 6, 7]))
cipher.setAutoPadding(false)
return cipher.update(chunk, 'binary', 'binary') + cipher.final()
}
*/
module.exports = {
_md5,
_ecbCrypt,
_ecbDecrypt
}