The Diffie-Hellman Key Exchange
The Diffie-Hellman key exchange (DHKE) is different then most of the cryptography we have been covering in this blog. That is because we
The Diffie-Hellman key exchange (DHKE) is different then most of the cryptography we have been covering in this blog. That is because we
Symmetric cryptography is split into two types, stream ciphers, and block ciphers. Stream ciphers encrypt one bit at a time and block …
The shift cipher, or the better-known name the Caesar cipher named after Julius Caesar is one of the simplest encryption techniques. In …
Modular Arithmetic An important question and one that I kept asking if I should dedicate a post to modular arithmetic …
The Substitution Cipher We will discuss one of the simplest ciphers, the substitution cipher. This cipher has a lot of …
What is Cryptology? The Oxford Dictionary defines Cryptology as: “the study of codes, or the art of writing and solving them”. When …
If you have not yet read the last post Stream Ciphers, Random Numbers, and the One-Time Pad it is highly recommended you go ahead and
Brief History In 1997, the National Institute of Standards and Technology (NIST) called to replace the DES. By this time DES was considered
This is a continuation of (AES) The Advanced Encryption Standard [Part 1], so it is highly encouraged to read that post before reading this post.
Introduction In 1976, Whitfield Diffie and Martin Hellman introduced to the world the concept of public key cryptography also known as asymmetric cryptography.
Introduction The Data Encryption Standard (DES) was proposed in the early 1970s by IBM, who based the design of the cipher on an
Motivation In the next few posts I want to discuss the Advanced Encryption Standard or better known as AES, which is the most