지급대행 Encryption Javascript 버전

import { compactDecrypt, CompactEncrypt } from 'jose';
import { uuidv4 } from 'lib0/random';

const encrypt = async (target: object, securityKey: string) => {
  // securityKey is a 64 character Hexadecimal string, change it to a byte array
  const key = Buffer.from(securityKey, 'hex');
  const keyInUint8Array = new Uint8Array(key);
  const payload = JSON.stringify(target);
  const payloadAsUint8Array = new TextEncoder().encode(payload);

  const encryption = new CompactEncrypt(payloadAsUint8Array);
  const encrypted = await encryption
    .setProtectedHeader({
      alg: 'dir',
      enc: 'A256GCM',
      iat: new Date().toISOString(),
      nonce: uuidv4(),
    })
    .encrypt(keyInUint8Array);
  return encrypted;
};

const decrypt = async (encrypted: string, securityKey: string) => {
  const key = Buffer.from(securityKey, 'hex');

  const keyInUint8Array = new Uint8Array(key);
  const decryption = await compactDecrypt(encrypted, keyInUint8Array);
  const plainTextInUint8Array = decryption.plaintext;
  // decode the plain text from Uint8Array to string in utf-8
  const plainText = new TextDecoder().decode(plainTextInUint8Array);
  return JSON.parse(plainText) as object;
};

export { encrypt, decrypt };