将OpenSSL命令行AES加密映射到NodeJS Crypto API等效项 [英] Mapping OpenSSL command line AES encryption to NodeJS Crypto API equivalent

问题描述

为了了解 Node.js Crypto API，我一直在尝试匹配代码到等效 OpenSSL enc 命令行（为了可读性插入换行符），该命令行通过 xxd 十六进制显示。

In trying to understand the Node.js Crypto API, I have been trying to match code to the equivalent OpenSSL enc command line (line breaks inserted for readability) which is piped through xxd for hex display.

$ echo -n "The quick brown fox jumps over the lazy dog" | openssl enc -aes256 -e
  -K "a891f95cc50bd872e8fcd96cf5030535e273c5210570b3dcfa7946873d167c57"
  -iv "3bbdce68b2736ed96972d56865ad82a2"  | xxd -p -c 64
582178570b7b74b000fd66316379835809874f985e0facadabb5b9c6b00593171165ae21c091f5237cea1a6fd939fd14

但是，当我运行 node test-aes.js ，我得到以下输出：

However, when I run node test-aes.js, I get the following output:

b8f995c4eb9691ef726b81a03681c48e

这不符合我的预期输出（它甚至长度的三分之一）。这是我的 test-aes.js 文件：

Which does not match my expected output (it is even one third the length). Here is my test-aes.js file:

var crypto = require("crypto");

var testVector = { plaintext : "The quick brown fox jumps over the lazy dog",
    iv : "3bbdce68b2736ed96972d56865ad82a2",
    key : "a891f95cc50bd872e8fcd96cf5030535e273c5210570b3dcfa7946873d167c57",
    ciphertext : "582178570b7b74b000fd66316379835809874f985e0facadabb5b9c6b00593171165ae21c091f5237cea1a6fd939fd14"};

var key = new Buffer(testVector.key, "hex");
var iv = new Buffer(testVector.iv, "hex");
var cipher = crypto.createCipher("aes256", key, iv);
cipher.update(testVector.plaintext, "utf8");
var crypted = cipher.final("hex");
console.log(crypted);

问题：我在将OpenSSL参数映射到Node.js Crypto API？

Question: Where am I going wrong in mapping the OpenSSL parameters to the Node.js Crypto API?

推荐答案

这里ya go：

var cipher = crypto.createCipheriv("aes256", key, iv);
var crypted = cipher.update(testVector.plaintext, "utf8", "hex");
crypted += cipher.final("hex");
console.log(crypted);

您的原始程式码有两个问题

You have two issues with your original code

1. createCipher 是错误的函数，应该使用 createCipheriv 。


2. 更新有一个返回值，您需要跟踪它。

1. createCipher is the wrong function, you should be using createCipheriv.
2. update has a return value, you need to keep track of it.

这篇关于将OpenSSL命令行AES加密映射到NodeJS Crypto API等效项的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！