Mobile agents play a great role in powerful digital cash systems. They can carry
a coin that travels from one platform to another. Agents can be designed to learn
and adapt to user needs and habits. Also, they can be able to negotiate with bank
agents for deposit, withdraw and so on. According to their great role that they can
play, so that they fire a lot of security issues. In this paper we will focus on hiding
agent structure based on obfuscation techniques. We will discuss general idea of
digital cash systems and their schemas. Also we will provide overview of old and
new obfuscation techniques Finally we address implementation issues related to
obfuscation algorithms and propose MAObfuscation (Mobile Agent) Tool for
protecting mobile agent in digital cash system.