In this paper, we propose Micro Secure Socket Layer (MSSL) for 8-bit flash micro controller that is about 1.3 Kbytes in code size. We have analyzed and compared various cryptographic protocols in TCP/IP stack for Micro Server to propose a simple secure layer based on simple handshake processing and encryption. Security implementation for Micro Server, which has very limited size of memory with a small processor, is very difficult and challenging task. However, security on the applications of ubiquitous sensors has become very important issues recently. Crackers can easily access to the sensor nodes or Micro Servers without security. Because the proposed MSSL is very small in code size, it can be implemented and is suitable for small sensors and Micro Server systems.