php gmssl库的使用案例有哪些

PHP的gmssl库是一个基于国密算法（SM2、SM3、SM4）的加密库，它提供了一系列的加密、解密、签名和验证等功能。以下是一些使用PHP gmssl库的示例：

生成SM2密钥对

<?phprequire_once 'vendor/autoload.php';use Gmssl\SM2;$sm2 = new SM2();$keyPair = $sm2->generateKeyPair();echo "公钥: " . $keyPair['publicKey'] . "\n";echo "私钥: " . $keyPair['privateKey'] . "\n";?>

SM2加密和解密

<?phprequire_once 'vendor/autoload.php';use Gmssl\SM2;$sm2 = new SM2();$keyPair = $sm2->generateKeyPair();$publicKey = $keyPair['publicKey'];$privateKey = $keyPair['privateKey'];$data = "Hello, world!";$encryptedData = $sm2->encrypt($data, $publicKey);echo "加密后的数据: " . $encryptedData . "\n";$decryptedData = $sm2->decrypt($encryptedData, $privateKey);echo "解密后的数据: " . $decryptedData . "\n";?>

SM2签名和验证

<?phprequire_once 'vendor/autoload.php';use Gmssl\SM2;$sm2 = new SM2();$keyPair = $sm2->generateKeyPair();$publicKey = $keyPair['publicKey'];$privateKey = $keyPair['privateKey'];$data = "Hello, world!";$signature = $sm2->sign($data, $privateKey);echo "签名: " . $signature . "\n";$isValid = $sm2->verify($data, $signature, $publicKey);echo "验证签名: " . ($isValid ? "有效" : "无效") . "\n";?>

SM3哈希计算

<?phprequire_once 'vendor/autoload.php';use Gmssl\SM3;$sm3 = new SM3();$data = "Hello, world!";$hash = $sm3->hash($data);echo "哈希值: " . $hash . "\n";?>

SM4加密和解密

<?phprequire_once 'vendor/autoload.php';use Gmssl\SM4;$sm4 = new SM4();$key = '0123456789abcdeffedcba9876543210'; // 16字节的密钥$data = "Hello, world!";$encryptedData = $sm4->encrypt($data, $key);echo "加密后的数据: " . $encryptedData . "\n";$decryptedData = $sm4->decrypt($encryptedData, $key);echo "解密后的数据: " . $decryptedData . "\n";?>

请注意，这些示例需要先安装PHP的gmssl库。你可以通过Composer来安装：

composer require gmssl/gmssl