接口数据加密、解密、验证签名

setKey($aeskey);
//解密AES密文
$plaintext = $aes->decrypt(base64_decode($crypttext));

echo $plaintext;

echo '';

//AES加密明文
//echo $aes->encrypt($plaintext);

//rsa公钥
$publickey = 'MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCffOeIVYut9jW5w1L5uKX4aDvd837a8JhaWm5S8YqNQfgEmfD9T+rDknXLqMT+DXeQAqGo4hBmcbej1aoMzn6hIJHk3/TfTAToNN8fgwDotHewsTCBbVkQWtDTby3GouWToVsRi1i/A0Vfb0+xM8MnF46DdhhrnZrycERBSbyrcwIDAQAB';
//echo base64_decode($publickey);
//rsa签名
$signature = 'XHin4uUFqrKDEhKBD/hQisXLFFSxM6EZCvCPqnWCQJq3uEp3ayxmFuUgVE0Xoh4AIWjIIsOWdnaToL1bXvAFKwjCtXnkaRwUpvWrk+Q0eqwsoAdywsVQDEceG5stas1CkPtrznAIW2eBGXCWspOj+aumEAcPyYDxLhDN646Krzw=';
//echo base64_decode($signature);

$rsa = new Crypt_RSA();
//设置RSA签名模式 CRYPT_RSA_SIGNATURE_PSS or CRYPT_RSA_SIGNATURE_PKCS1
$rsa->setSignatureMode(CRYPT_RSA_SIGNATURE_PKCS1);
//var_dump($rsa->createKey());
//生成RSA公钥、私钥
//extract($rsa->createKey());
//使用RSA私钥生成签名
//$rsa->loadKey($privatekey);
//$signature = $rsa->sign($plaintext);
//使用RSA公钥验证签名
echo $plaintext;
$rsa->loadKey(base64_decode($publickey));
echo $rsa->verify($plaintext, base64_decode($signature)) ? 'verified' : 'unverified';

echo '';

//生成RSA公钥、私钥
//var_dump($rsa->createKey());
extract($rsa->createKey());
//使用RSA私钥加密数据
$rsa->loadKey($privatekey);
$ciphertext = $rsa->encrypt($plaintext);
//使用RSA公钥解密数据
$rsa->loadKey($publickey);
echo $rsa->decrypt($ciphertext);