[PHP知识库]php生成秘钥加密解密Rsa

<?php

namespace app\common\library;

use think\Config;

class CreateKey
{
    public $config=array(
        'digest_alg'=>'sha256',
        'private_key_bits'=>1024,
        'private_key_type'=>OPENSSL_KEYTYPE_RSA,
    );
    public $res;
    public function __construct(){
        $conf = Config::get('site');
        $this->config['config']=$conf['ssl_config'];
        $this->res=openssl_pkey_new($this->config);
    }
    /**
     * 生成私钥
     */
    public function getPrivateKey(){
        openssl_pkey_export($this->res, $private_key,null,$this->config);
        return $private_key;
    }
    /**
     * 生成公钥
     */
    public function getPublicKey(){
        $result=openssl_pkey_get_details($this->res);
        $public_key=$result['key'];
        return $public_key;
    }
    /**
     * 私钥加密数据
     */
    public function PrivateEncrypt($data,$private_key){
        openssl_private_encrypt($data,$encrypted,$private_key);
        return $encrypted;
    }
    /**
     * 公钥解密数据
     * $encrypted:私钥加密的密文
     * $public_key:公钥
     */
    public function PublicDecrypt($encrypted,$public_key){
        openssl_public_decrypt($encrypted, $decrypted, $public_key);
        return $decrypted;
    }
    /**
     * 公钥加密
     */
    public function PublicEncrypt($data,$public_key){
        openssl_public_encrypt($data, $encrypted, $public_key);
        return $encrypted;
    }
    /**
     * 私钥解密
     */
    public function PrivateDecrypt($encrypted,$private_key){
        openssl_private_decrypt($encrypted, $decrypted, $private_key);//私钥解密  
        return $decrypted;
    }
}