PHP RSA 非对称加密解密

openssl genrsa -out test.key 1024
openssl rsa -in test.key -pubout -out test_pub.key

私钥

公钥

方法

function rsa()
{

	$private_key = "-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----";

	$public_key = "-----BEGIN PUBLIC KEY-----
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDvluFNiF8IrIsddK0OXBAvVBJH
11OKvy9er1tRGn9yEJoHCJY3EU/xz2LasCK8AwgRIqGJbvDBgRa70c3QT9j+wPqN
qqJCSoSEKifnDUk1RgUReJT6iqWaJyfM+WM3aHnKl61RZL4NV5qKe4CHMtaH/JtB
CC/JzpuFER1P1IhCtQIDAQAB
-----END PUBLIC KEY-----
";


	//获取所有支持算法，cipher 就是密码，算法计算的意思
	//$methods = openssl_get_cipher_methods();
	//var_dump($methods);

	$data = "原始数据为: 用私钥加密origin data1";
	//$method = "AES-128-CBC";

	//通过私钥加密，生成$crypted;
	openssl_private_encrypt($data, $crypted, $private_key);

	// 由于php 进行openssl_public_encrypt 加密后返回的是二进制数据，需要对其返回的加密后的数据进行二进制16进制编码base64_encode才可以显示，$crypted为加密后的串
	$crypted = base64_encode($crypted);

	echo "私钥加密后的结果为:" . $crypted . "<br/>";

	//相应的：加密后生产的16进制加密字符串需要进行base64_decode进行解密后在进行openssl_private_decrypt
	$crypted = base64_decode($crypted);


	openssl_public_decrypt($crypted, $decrypted, $public_key);

	echo "用公钥解密的结果为" . ($decrypted) . "<br/>";
	echo "===================我是分割线=============="."<br/>";
	$data = "用公钥加密origin data2\n";
	//$method = "AES-128-CBC";

	//通过公钥加密，生成$crypted;
	openssl_public_encrypt($data, $crypted, $public_key);

	// 由于php 进行openssl_public_encrypt 加密后返回的是二进制数据，需要对其返回的加密后的数据进行二进制16进制编码base64_encode才可以显示，$crypted为加密后的串
	$crypted = base64_encode($crypted);

	echo "公钥加密后的结果为:" . $crypted . "<br/>";

	//相应的：加密后生产的16进制加密字符串需要进行base64_decode进行解密后在进行openssl_private_decrypt
	$crypted = base64_decode($crypted);

	openssl_private_decrypt($crypted, $decrypted, $private_key);

	echo "用私钥解密的结果为" . ($decrypted) . "<br/>";
}

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