nodejs crypto aes256, md5

CryptoUtils.js

 

import crypto from "crypto" ;



/**
 *  sha512 해싱 알고리즘
 * @description 단방향
 * @param {String} text 암호화할 평문.
 */
export const sha512 = (text) => crypto.createHash('sha512').update(text).digest('base64')


let data = sha512("가나다라마바사")
console.log(` sha512 :  ${data}`)

 

AES256Utils.js

import crypto from "crypto" ;

const aesKey = crypto.randomBytes(32) // 32 byte
const iv = Buffer.from([0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00]); 
console.log('iv = ',iv)

/**
 * 
 * @param {String} text 
 */
export const aes256Encrypt = (text)  => {
    let cipher = crypto.createCipheriv('aes-256-cbc', aesKey, iv);
    let result = cipher.update(text, 'utf8', 'base64');
    result += cipher.final('base64');
    return result
}

export const aes256Decrypt = (cryptogram) =>  {   
    const decipher = crypto.createDecipheriv('aes-256-cbc', aesKey, iv);
    let result = decipher.update(cryptogram, 'base64', 'utf8');
    result += decipher.final('utf8');
    return result
}


let plainTextData = "id=kdy&ts=1597802688"
let encryptStr = aes256Encrypt(plainTextData)
let decryptStr = aes256Decrypt(encryptStr)

console.log("  encryptStr : ", encryptStr)
console.log("  decryptStr : ", decryptStr)

 

 

index.js

import * as AESCrypto from "./crypto/Aes256Utils.js"

import {sha512}  from "./crypto/CryptoUtils.js"


// promise test
const Application = async () => {
    console.log(" Application Running")    
    return {key:"key", value :"value"}
}

Application().then(
    r=> {
        console.log(`application run code = ${r}`)
        
        let plainTextData = "id=kdy&ts=1597802688"
        let encryptStr = AESCrypto.aes256Encrypt(plainTextData)
        let decryptStr = AESCrypto.aes256Decrypt(encryptStr)

        console.log("  encryptStr : ", encryptStr)
        console.log("  decryptStr : ", decryptStr)
                    
        let data = sha512("가나다라마바사")
        console.log(` sha512 :  ${data}`)

    }
).catch((error=>{
    console.log('error', error)
}))