php rsa加解密

private $publicKey = "";
private $privateKey = "";

//rsa公钥加密
public function rsaPrivateDecrypt(string $data){
    $private_key = "-----BEGIN PRIVATE KEY-----\n" . wordwrap($this->privateKey, 64, "\n", true) . "\n-----END PRIVATE KEY-----";
    $key = openssl_pkey_get_private($private_key);
    $return_de = openssl_private_decrypt(base64_decode($data), $decrypted, $key);
    if (!$return_de) {
        return false;
    }
    return $decrypted;
}

//rsa私钥解密
public function rsaPublicEncrypt(array $params){
    $json = json_encode($params,JSON_UNESCAPED_UNICODE);
    $public_key = "-----BEGIN PUBLIC KEY-----\n" . wordwrap($this->publicKey, 64, "\n", true) . "\n-----END PUBLIC KEY-----";
    $key = openssl_pkey_get_public($public_key);
    $bool = openssl_public_encrypt($json,$encryptedData,$key);
    if (!$bool){
        return false;
    }
    return base64_encode($encryptedData);
}