System.Exception:“icbc sign verify not passed.” 工行api接口 出现错误怎么解决 有知道的师傅吗 .net core api

有做过工行RSA接口的师傅吗 出现这个错误 不知道是什么问题 希望可以帮助解决一下 .net core api

public class APIController : ControllerBase
{
protected static String APP_ID = "10000000000000001531";
protected static String MY_PRIVATE_KEY = @"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";
protected static String APIGW_PUBLIC_KEY = @"MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCwFgHD4kzEVPdOj03ctKM7KV+16bWZ5BMNgvEeuEQwfQYkRVwI9HFOGkwNTMn5hiJXHnlXYCX+zp5r6R52MY0O7BsTCLT7aHaxsANsvI9ABGx3OaTVlPB59M6GPbJh0uXvio0m1r/lTW3Z60RU6Q3oid/rNhP3CiNgg0W6O3AGqwIDAQAB";
[HttpPost("Test")]///Post
public int Test(string setCorpNo, string settrxAccDate, string setTrxAccTime, string setCorpDate, string setOutServiceCode, string setMediumId)
{

    /// <summary>
    /// 非页面服务实现类(RSA加解密方式) 
    /// </summary>
    /// <param name="APP_ID">应用id</param>
    /// <param name="MY_PRIVATE_KEY">RSA私钥</param>
    /// <param name="APIGW_PUBLIC_KEY">网关公钥</param>
    /// <returns>非页面服务实现类实例</returns>
    DefaultIcbcClient client = new DefaultIcbcClient(APP_ID, IcbcConstants.SIGN_TYPE_RSA2, MY_PRIVATE_KEY, APIGW_PUBLIC_KEY);
        ///新建服务请求类实例
        SettlementAccountBalanceQueryRequestV1 request = new SettlementAccountBalanceQueryRequestV1();
        ///新建服务请求类的业务参数类，该类为内部类
        SettlementAccountBalanceQueryRequestV1.SettlementAccountBalanceQueryRequestV1Biz bizContent = new SettlementAccountBalanceQueryRequestV1.SettlementAccountBalanceQueryRequestV1Biz();
        ///为请求类设置各种参数
        request.setServiceUrl("https://gw.open.icbc.com.cn/api/ebankc/V1/VerifiedInfoQuery");

        bizContent.setCorpNo(setCorpNo);
        bizContent.settrxAccDate(settrxAccDate);
        bizContent.setTrxAccTime(setTrxAccTime);
        bizContent.setCorpSerno(Guid.NewGuid().ToString());
        bizContent.setCorpDate(setCorpDate); 
        bizContent.setOutServiceCode(setOutServiceCode);
        bizContent.setMediumId(setMediumId);
        bizContent.setCcy(1);

        request.setBizContent(bizContent);
        int mvvv = 0;
        //同步调用并返回response响应类
        SettlementAccountBalanceQueryResponseV1 response = null;
        try
        {
            response = (SettlementAccountBalanceQueryResponseV1)client.execute(request, "msgId");
        }
        catch (System.Net.WebException e) //无法连接到远程服务器，网络异常
        {

            throw e;
        }
        catch (Exception ex)//抛出其他异常
        {

            throw ex;
        
        }
        //获取响应类的返回代码，小于0表示业务失败，等于0表示调用成功，大于0表示系统失败
        mvvv = response.getReturnCode();
        //if (response.getReturnCode() < 0)
        //{
        //    Console.WriteLine("业务失败!");
        //}
        //else if (response.getReturnCode() == 0)
        //{
        //    Console.WriteLine("成功!");
        //}
        //else
        //{
        //    Console.WriteLine("系统失败!");
        //}
        return mvvv;
    }
}