دراسة الوثوقية و تحقيقها باستخدام التواقيع الرقمية

Abstract

This paper deals with studying Authentication conception and the methods
which are used to achieve it focusing on Digital Signature method for the
high level of Authentication it provides and the secure way of moving data
through computer's net. Also, it is considered one of the new methods in the
field. The research proposes a method for Digital Signature depending on
the right features and ideas of achieving Authentication methods previously
used. The mechanism method includes using the idea of a one way hash
function to obtain the Message Digest, and also including Authentication
inquiry depending on Symmetric Encryption System which includes providing specific structure to the message which has been designed before.
Encryption process includes the procedure of replacing message letters and
symbols depending on the statistical features of English. This method
provides high level of randomness to the yield text, hence it achieves high
degree of Authentication and will secure the moving data through
computer's net. It also opens the way before the workers in banking and the
commercial sector through using the electronic Net's to cope with the
development in this field .