Author

Abstract

Data Encryption Standard (DES) is based on a round of starters, from the
results of the use of multi-stage permutation and replacement to the more complex
algorithm which adopts the symmetric key. Diffie- Hellman is based key
generation algorithm puts a shared secret key between two parties A and B, which
depends on the prime number.
This research suggest a technique it is objective is the blending between the
two encryption methods DES and Diffie Hellman to make DES more safe and
secure. That by propose two options first one include injection the encryption DES
after the seventh round with Diffie-Hellman just as key distribution algorithm then
the results of the last back to the eighth round to complete the encryption process
of DES. The second include injection the encryption DES after the eighth round
with Diffie-Hellman just as key distribution algorithm to generate key the results
of the eighth round will be encrypted using stream cipher then back to the ninth
round to complete the encryption process of DES.

Keywords