January 28, 2018

Video and Notes on Transport Layer Security

  • Technical preventative control

  • TLS is just one of those things that is going to be on the exam, there is no way to avoid it.  Mainly because TLS is heavily emphasized in all your books.  Especially when they mention encrypting web traffic.

  • Involves a TLS handshake AFTER the TCP Handshake. 


January 24, 2018

Exclusive OR is a mathematical calculation in cryptography.  It is a logical operation. 

There are other logical operations in our CISSP study guides: AND, OR, NOT, Modulo Function etc. etc. 

XOR though, is the most important and the most used.

And it's really easy to understand. 

It consists of the multiplication of 1 and 0, that's it.  

If it's 1...

January 22, 2018

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April 4, 2017

Digital signatures should be one of your most favorite things to study for the CISSP exam.

By knowing the concept of digital signatures, you also get to know about these 4 other things: 

  • Hashing

  • Nonrepudiation

  • Encryption

  • Authentication

All 4 of the terms above go into making digital signatures possible.  If you were ever confused about...

November 19, 2014

Rijndael can use different block sizes, but AES uses a fixed block size of 128-bits.

So for AES, the block size must always be 128-bits!!!

Key Size    Block Size

128             128
192             128
256             128

Basic Information

  • Official NIST standard

  • Won first...

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