In the world of secured communications, Message Integrity describes the concept of ensuring that data has not been modified in transit. This is typically accomplished with the use of a Hashing algorithm. We learned earlier what a Hashing Algorithm does. Now we can take a look at how they are actually used to provide Message Integrity. The basic premise is […]
Symmetric Encryption
September 16, 2015 By 2 Comments
We learned earlier that Symmetric encryption is an encryption scheme that encrypts and decrypts using the same secret key. Now we will explore a bit further into what that involves. Let’s start with a simple example: As pictured, if we start with the plain text hello, and use a Symmetric encryption algorithm of simply rotating the […]