crm_system/swparts/fusiancrm/service/common/pay/trustpay/PayUtils.php

<?php
namespace common\pay\trustpay;

class PayUtils
{




    /** 加密函数
     * @param array $data
     * @return string 
     */
    public static function makeSign($data, $privateKey)
    {
        $MerchantID  = $data['MerchantID'];          //支付平台商户号
        $OrderNo     = $data['OrderNo'];             //平台订单号码
        $ProductName = $data['ProductName'];        //商品名称
        $Amount      = $data['Amount'];              //总金额
        $CallBackUrl = $data['CallBackUrl'];         //回调地址

        $str = "{$MerchantID}"."{$OrderNo}"."{$ProductName}"."{$Amount}"."{$CallBackUrl}";
		file_put_contents('tp_str_befor.txt',$str);
        $rsa = openssl_pkey_get_private(file_get_contents($privateKey));              
        if (empty($rsa))
        {
            echo "private key resource identifier False!";
            return False;
        }
        openssl_sign($str, $sign, $rsa);
        $sign = base64_encode($sign);
		file_put_contents('tp_str_after.txt',$sign);
        return $sign;
    }


    /** 解密函数
     * @param array $data
     * @param $pubCert
     * @return bool|int
     */
    public static function verify($data, $pubCert)
    {
        // 签名
        if (!isset($data['Sign']) || trim($data['Sign']) === '') {
            return false;
        }
		$sign = $data['Sign'];    //获得数据中的sign
        unset($data['Sign']);     //删除数据中的字段        

        $MerchantID       = $data['MerchantID'];               //支付平台商户号
        $OrderNo          = $data['OrderNo'];                  //平台订单号码
        $MerchantOrderNo  = $data['MerchantOrderNo'];          //商品名称
        $Status           = $data['Status'];                   //回调地址
        $Amount           = sprintf("%.2f",$data['Amount']);   //总金额

        $temp =  "{$MerchantID}"."{$OrderNo}"."{$MerchantOrderNo}"."{$Status}"."{$Amount}";   //加密字符串
        
        $pubKey = openssl_pkey_get_public(file_get_contents($pubCert));
        return  (bool)openssl_verify($temp, base64_decode($sign), $pubKey);
        
    }


}