PHP 학습 가이드: 데이터 암호화 기능을 구현하는 방법

// 待加密的数据
$data = "Hello World";

// 密钥
$key = "1234567890abcdef";

// 初始化加密器
$iv = openssl_random_pseudo_bytes(openssl_cipher_iv_length('aes-256-cbc'));
$encryptor = openssl_encrypt($data, 'aes-256-cbc', $key, OPENSSL_RAW_DATA, $iv);

// 打印加密后的数据
echo base64_encode($iv . $encryptor);

// 待加密的数据
$data = "123456";

// 密钥
$key = "9876543210abcdef";

// 初始化加密器
$iv = openssl_random_pseudo_bytes(openssl_cipher_iv_length('aes-256-cbc'));
$encryptor = openssl_encrypt($data, 'aes-256-cbc', $key, OPENSSL_RAW_DATA, $iv);

// 将加密后的数据存入数据库
$encryptedData = base64_encode($iv . $encryptor);
// code here: 将$encryptedData存入数据库

// 从数据库中读取加密后的数据
// code here: 从数据库读取$encryptedData

// 解密数据
$decryptedData = openssl_decrypt(base64_decode($encryptedData), 'aes-256-cbc', $key, OPENSSL_RAW_DATA, substr(base64_decode($encryptedData), 0, 16));

// 打印解密后的数据
echo $decryptedData;

// 目标URL
$url = "https://example.com/api";

// 请求参数
$data = array(
  "username" => "admin",
  "password" => "123456"
);

// 初始化cURL
$ch = curl_init();

// 设置cURL选项
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($data));

// 发送请求
$response = curl_exec($ch);

// 关闭cURL
curl_close($ch);