Abstract:
Online transactions using mobile agents need
secure protocols to help the mobile agents to accomplish the
transactions initiated by a client in an electronic commerce.
However, the mobile agent could encounter hostile
environment For example, a server may compromise the
mobile agent and try to obtain private information of the
client. A solution to tackle this issue has been proposed.
However, the existing solution is implemented using RSA
signatures, that result in long signatures and heavy workloads
for the mobile agent. Mobile agents will migrate from the
client to a server and from one server to other servers in order
to accomplish the client's transaction plan. Therefore, it will
be interesting to re-tackle this issue. We present a new scheme
for secure transactions using mobile agents in potentially
hostile environments. This transaction scheme is implemented
by using a new undetachable signature scheme. The new
undetachable signature protocol utilizes short signatures,
which is desirable for low-bandwidth and efficient mobile
communications.
