解密 Node.js 中使用 OpenSSL 加密的文件 [英] Decrypt file in Node.js encrypted using OpenSSL

问题描述

我正在使用以下命令在 openssl 中加密视频文件

I'm using the following command to encrypt a video file in openssl

openssl aes-256-cbc -nosalt -a -in movie.mp4 -out movie.enc -k skdjfsldkfjsldkjfsldkf

并使用以下代码解密文件，但我不断收到错误的解密错误，我做错了什么?

And using the following code to decrypt the file but I keep getting bad decrypt error what am I doing wrong?

var crypto = require('crypto');

var fs = require('fs');
cipher_name   = 'aes-256-cbc';
password      = 'skdjfsldkfjsldkjfsldkf';
decoder       = crypto.createDecipher( cipher_name, password );
text_crypt    = fs.readFileSync( 'movie.enc' );
chunks        = [];
chunks.push(decoder.update( text_crypt, 'binary' ));
chunks.push(decoder.final( 'binary' ));
fs.writeFileSync( 'nodemovie.mp4',chunks.join('','binary') );

这是我得到的错误

Error: error:0606506D:digital envelope routines:EVP_DecryptFinal_ex:wrong final block length
    at Decipher.final (crypto.js:160:26)
    at Object.<anonymous> (F:\java\index.js:12:21)
    at Module._compile (module.js:571:32)
    at Object.Module._extensions..js (module.js:580:10)
    at Module.load (module.js:488:32)
    at tryModuleLoad (module.js:447:12)
    at Function.Module._load (module.js:439:3)
    at Module.runMain (module.js:605:10)
    at run (bootstrap_node.js:427:7)
    at startup (bootstrap_node.js:151:9)

我应该能够在openssl中加密视频并同时在node和java中解密

I should be able to encrypt video in openssl and decrypt in node and java at the same time

推荐答案

正如 jww 所说，openssl -k 和 -K 是不一样的.

as jww said, openssl -k and -K are not the same.

openssl aes-256-cbc -nosalt -in movie.mp4 -out movie.enc -k skdjfsldkfjsldkjfsldkf -p
*** WARNING : deprecated key derivation used.
Using -iter or -pbkdf2 would be better.
key=ED67064595132E4F1154C557A3C103999CF719B66855B6563C6B35D346CDE40E
iv =4FB8711CAD9659FF2F1DCE33A7D3E0B7

知道key和iv

var crypto = require('crypto');

var fs = require('fs');
cipher_name   = 'aes-256-cbc';
//password      = 'skdjfsldkfjsldkjfsldkf';
//decoder       = crypto.createDecipher( cipher_name, password );
iv            = Buffer.from('4FB8711CAD9659FF2F1DCE33A7D3E0B7','hex');
key           = Buffer.from('ED67064595132E4F1154C557A3C103999CF719B66855B6563C6B35D346CDE40E','hex');

decoder       = crypto.createDecipheriv( cipher_name, key, iv );
text_crypt    = fs.readFileSync( 'movie.enc' );
chunks        = [];
chunks.push(decoder.update( text_crypt, 'binary' ));
chunks.push(decoder.final( 'binary' ));
fs.writeFileSync( 'nodemovie.mp4',chunks.join('','binary') );

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