Algorithms For Dummies

 

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Confidentiality: Ensuring that no one can see information exchanged 

between two parties.

 

»

Data integrity: Reducing the likelihood that someone or something can 

change the content of data passed between two parties.

 

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Authentication: Determining the identity of one or more parties.

 

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Nonrepudiation: Reducing the ability of a party to say he or she didn’t 

commit a particular act.

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CHAPTER 21

  Ten Algorithms That Are Changing the World 

     395

Because keeping a secret when using computers, the history of computer-based 

cryptographic algorithms is long and interesting. You can find a list of commonly 

used algorithms (both present and historical) at 

http://www.cryptographyworld.

com/algo.htm

 and 

https://www.dwheeler.com/secure-programs/Secure- 

Programs-HOWTO/crypto.html

. The guide at 

https://www.owasp.org/index.

php/Guide_to_Cryptography

 provides additional details on how cryptography 

works.