The communication protocols used on the internet are plaintext based. Even the usernames and corresponding passwords can be eavesdropped easily. Because of the continuous competition in business life enterprises may want (or better to say: should) improve the security of their data security...

Users can be authenticated by three different ways: on the basis of what they know (password/pin), or what they have (smartcard etc.), or what they are (biometrics). The price and complexness of these methods increases in this order. One would think that the more complex or more expensive a...

Knowledge is power. Information is value. I could be considered to talk in clichés, but on closer examination we can get interesting results.

In Hungary there exist two big and well- known scholar information systems (SIS). Both of them have become part of everyday life in the adminis - tration of higher education. These SISes have made quite a long journey dur - ing their evolution. Even so, they have some annoying disadvantages even...

Our age is called information age which shows the importance of any kind of data. Because of this one should protect their (digital) data to prevent non-wanted entities accessing them.This is a permanent problem of enterprises and private persons as well. The technical prerequisites are given...