sql修改二进制加密密码

先获取密码：

 var shastr = new SHA1CryptoServiceProvider().ComputeHash(new UnicodeEncoding().GetBytes("123456"));
            var shabytestr = ByteArrayToHexString(shastr);

 private static string ByteArrayToHexString(byte[] buf)
        {
            return BitConverter.ToString(buf).Replace("-", "");
        }

--修改密码
--参考：https://blog.csdn.net/yuhu1023/article/details/88383119
UPDATE dbo.AccountsUsers SET Password=CONVERT(varbinary(512),0x6ED5833CF35286EBF8662B7B5949F0D742BBEC3F) WHERE UserId=2157


--获取字符串二进制流
--参考：https://www.cnblogs.com/qing-xuanlvyee/articles/4756954.html
select convert (varbinary(256),'123456') AS binvalue

--将流拼接输出为字符串
DECLARE @binvalue VARBINARY(256),
        @vcharvalue NVARCHAR(256);
SET @binvalue = 0xF5FF3FED3B055DF7EC27251FBC80EE48;
SELECT @vcharvalue = N'aa' + master.dbo.fn_varbintohexsubstring(1, @binvalue, 1, 0);
PRINT @vcharvalue;

 C# string类型和byte[]类型相互转换
https://www.jianshu.com/p/766e12c66db8
C# 获取文件MD5、SHA1
https://www.cnblogs.com/shy1766IT/p/7307142.html
将String转化成Stream，将Stream转换成String, C# Stream 和 byte[] 之间的转换(文件流的应用)
https://www.cnblogs.com/shy1766IT/p/5371755.html