Abstract
M.Ing. (Electric and Electrical Engineering)
From the day the first 'apple' was eaten, a species of people existed
that wants to misuse other people, This species is normally the first to use
new technology to their advantage. It is essential for our own security to
restrict the boundaries of their playing-field and to fill the field it self with
potholes. This however should be a continuous process, for their dexterity
tends to evolveas fast as new techniques are mastered.
Firstly this thesis entails the analysis of the boundaries of the playing field
of authentication systems without security. The boundaries of authentication
systems with security is established with a unique technique.
Concluding the first part of the thesis, a new method of code designing for
this playing-field is proposed.
Reordering the potholes on the playing-field is the subject of the second
part of the thesis. Anew public key system is described for this purpose.
A novel implementation of insertion/deletion error correcting codes is
presented in this new system. To conclude the thesis, a thorough analysis
of this public key system is presented.