@node-dlc/crypto/lib/chacha.ts

Lightning cryptography utilities

import * as crypto from 'crypto';

export function chachaEncrypt(key: Buffer, iv: Buffer, data: Buffer): Buffer {
  // eslint-disable-next-line @typescript-eslint/no-explicit-any
  const cipher = crypto.createCipheriv('chacha20' as any, key, iv);
  return cipher.update(data);
}

export function chachaDecrypt(key: Buffer, iv: Buffer, cipher: Buffer): Buffer {
  // eslint-disable-next-line @typescript-eslint/no-explicit-any
  const decipher = crypto.createDecipheriv('chacha20' as any, key, iv);
  return decipher.update(cipher);
}