Javascript 节点加密解密流抛出EVP_DecryptFinal_ex:如果流将被中断,则错误的最终块长度
我有一个node.js客户端,它从另一台主机下载并解密AES加密文件Javascript 节点加密解密流抛出EVP_DecryptFinal_ex:如果流将被中断,则错误的最终块长度,javascript,node.js,encryption,stream,aes,Javascript,Node.js,Encryption,Stream,Aes,我有一个node.js客户端,它从另一台主机下载并解密AES加密文件 var base64 = require('base64-stream'); var crypto = require('crypto'); var aes = crypto.createDecipher('aes-256-cbc', crypto.createHash('sha256').update(pass).digest('hex')); // file stream var file = fs.createWrit
var base64 = require('base64-stream');
var crypto = require('crypto');
var aes = crypto.createDecipher('aes-256-cbc', crypto.createHash('sha256').update(pass).digest('hex'));
// file stream
var file = fs.createWriteStream(params.target);
var base64reader = base64.decode();
response.pipe(base64reader) // decode base64
.pipe(aes) // decrypt
.pipe(file); // write in file
// on last data chunk received: file load complete
aes.on('end', function (chunk) {
if (typeof params.success !== 'undefined')
params.success();
});
如果另一台主机在完成请求之前意外地关闭了连接,则上面的代码会抛出此错误:
TypeError: error:0606506D:digital envelope routines:EVP_DecryptFinal_ex:wrong final block length
at Decipher.Cipher._flush (crypto.js:262:27)
at Decipher.eval (_stream_transform.js:130:12)
at Decipher.g (events.js:187:16)
at Decipher.EventEmitter.emit (events.js:95:17)
at prefinish (_stream_writable.js:427:12)
at finishMaybe (_stream_writable.js:435:7)
at afterWrite (_stream_writable.js:317:3)
at onwrite (_stream_writable.js:307:7)
at WritableState.onwrite (_stream_writable.js:100:5)
at afterTransform (_stream_transform.js:99:5)
at TransformState.afterTransform (_stream_transform.js:74:12)
at Decipher.Cipher._transform (crypto.js:258:3)
at Decipher.Transform._read (_stream_transform.js:179:10)
at Decipher.Readable.read (_stream_readable.js:334:10)
at flow (_stream_readable.js:743:26)
at WriteStream.eval (_stream_readable.js:601:7)
我尝试添加一个aes.on('error',函数((){…});处理程序,但它不会被调用。我还尝试添加
response.on('end', function() { aes.emit('close'); });
response.on('close', function() { aes.emit('close'); });
但是不会调用aes.on('end',…);将aes.emit('end')添加到此语句没有意义,因为如果出现导致上述错误的错误,也会调用此语句
response.on('end', function() { aes.emit('end'); aes.emit('close'); });
response.on('close', function() { aes.emit('end'); aes.emit('close'); });
有人知道我怎样才能抓住这个错误吗
非常感谢!!这是node.js v0.11.9中的一个bug,在v0.11.13中得到了解决。然后是aes.on('error',…)将被正确调用。感谢您的回复,Toby。尝试使用具有大量追随者的标签,以获得更大的成功,即使我没有定期查看AES标签。哇,在我看来,这似乎仍然存在。在使用管道时,我无法发现此错误。