Encryption and Politics
What is the "Clipper Chip"?
- key escrow and backdoors
The Wassenaar Arrangement - export
controls and encryption
Rijndael algorithm - the new Advanced Encryption Standard (AES) -
The AES algorithm and the challenge to set a new Federal standard
and Triple DES - the US Federal Data Encryption Standard - DES was
developed in 1976 and used as a US Federal Information Protection Standard
until 1993. Read about weaknesses in DES algorithm and the international
challenge to "crack the code".
Encryption algorithms - types of algorithm
and their uses.
Security Methodologies - differences
between encryption and scrambling
Introduction to Voice Security
(pdf 533k) - information on the encryption and scrambling techniques
used to overcome communications security risks
What is encryption? - what are keys,
algorithms and random numbers, and how do they work together?
Scrambling and frequency inversion
- how do radio security products work, and what is "frequency inversion"?
Public Key and Private Key - an introduction
to key management systems
A brief history of public key technology.
The History of Encryption - how long
has encryption been used and how has it developed since its beginnings?
Radio security - what are the vulnerabilities
of radio communications, and how can these be overcome?
is voice? - what are the components of voice signals and how can voice
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