Publication detail

Diffie-Hellman Protocol as a Symmetric Cryptosystem

BURDA, K.

Original Title

Diffie-Hellman Protocol as a Symmetric Cryptosystem

Type

journal article - other

Language

English

Original Abstract

The Diffie-Hellman protocol is commonly considered as an asymmetric cryptosystem. However, this paper shows that the current versions of the Diffie-Hellman protocol can, in both directions of communications, be interpreted as a series of two consecutive encryptions using a symmetric cipher. The cipher used is distinguished by a specific feature: the result of a series of several encryptions is independent of the keys' order. Each of the communicating parties encrypts the default message with its own secret key. Then, both parties send their cryptograms to each other, and each of them encrypts the received cryptogram with its own key. This way, both parties obtain the same resulting cryptogram, which is then used as a seed. The interpretation introduced above leads to a “heretical” question of whether the Diffie-Hellman protocol falls into the asymmetric or symmetric cryptosystem category.

Keywords

Diffie-Hellman protocol public key cryptography secret key cryptography asymmetric cryptosystem symmetric cryptosystem

Authors

BURDA, K.

Released

13. 8. 2018

Publisher

International Journal of Computer Science and Information Security

Location

Seoul, Korea

ISBN

1738-7906

Periodical

International Journal of Computer Science and Network Security

Year of study

18

Number

7

State

Republic of Korea

Pages from

33

Pages to

37

Pages count

5

URL

http://paper.ijcsns.org/07_book/201807/20180705.pdf

BibTex

@article{BUT149163,
  author="Karel {Burda}",
  title="Diffie-Hellman Protocol as a Symmetric Cryptosystem",
  journal="International Journal of Computer Science and Network Security",
  year="2018",
  volume="18",
  number="7",
  pages="33--37",
  issn="1738-7906",
  url="http://paper.ijcsns.org/07_book/201807/20180705.pdf"
}