如何在Objective C中使用AES 256 CBC进行加密 [英] How to encrypt with AES 256 CBC in Objective C

问题描述

我正在构建一个iPhone应用程序，该应用程序将获取一个加密字符串并将其发送到后端.

I am building an iPhone app which gets a encrypt string and sent it to backend.

在PHP中，我像这样对字符串进行加密:

In PHP I am encrypting the string like this:

$encrypt_method = "AES-256-CBC";
$secret_key = 'This is my secret key';
$secret_iv = 'This is my secret iv';

// hash
$key = hash('sha256', $secret_key);

// iv - encrypt method AES-256-CBC expects 16 bytes - else you will get a warning
$iv = substr(hash('sha256', $secret_iv), 0, 16);

if( $action == 'encrypt' ) {
    $output = openssl_encrypt($string, $encrypt_method, $key, 0, $iv);
    $output = base64_encode($output);
}

除了在Objective C中，我该怎么做

How I do the same like that but in Objective C

推荐答案

感谢 Nirav Kotecha .

我最终使用了 CrytoSwift ，并添加了扩展类NSString和String来调用它.

I ended up using CrytoSwift and Add Extension class NSString and String to call it.

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