我是nodejs和javascript的新手,我目前正在开发一个开源项目,因为昨晚我试图将此函数从异步转换为同步,但我做不到,我使用了async/await,但我认为我不太理解这个概念,这个函数使用 aes256 算法加密和压缩文件,我异步工作得很好,但我想添加这个新功能,允许您递归地加密目录的内容。
function encrypt({ file, password }, error_callback, succ_callback) {
const initVect = crypto.randomBytes(16);
// Generate a cipher key from the password.
const CIPHER_KEY = crypto.createHash('sha256').update(password).digest();;
const readStream = fs.createReadStream(file);
const gzip = zlib.createGzip();
const cipher = crypto.createCipheriv('aes-256-cbc', CIPHER_KEY, initVect);
const appendInitVect = new AppendInitVect(initVect);
// Create a write stream with a different file extension.
const writeStream = fs.createWriteStream(path.join(file + ".dnc"));
readStream
.pipe(gzip)
.pipe(cipher)
.pipe(appendInitVect)
.pipe(writeStream);
readStream.on('error', error_callback);
readStream.on('end', succ_callback);
}
Run Code Online (Sandbox Code Playgroud)