In this modern world of communications, cryptography has an important role in the security of data transmission and is the best method of data protection against passive and active fraud. In this ...

One of the principal challenges of resource sharing on data communication network is its security. This is premised on the fact that once there is connectivity between computers sharing some resources ...

This was one of the most secure hand ciphers used in the Second World War. It was used by both the Allies and the Axis, and served both well. Its main weakness was that if the attacker intercepted two ...

Chinese researchers have discovered a way to rapidly decrypt satellite phone communications -- within a fraction of a second in some cases. The paper, published this week, expands on previous research ...