[Q] Comparison of Encryption Algorithms

[David Shaw]

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On Fri, May 09, 2003 at 06:14:29PM -0400, Daniel Carrera wrote:
> Hello,
> 
> I'm been trying to learn about "how secure" some encryption algorithms 
> are, but I haven't found what I want.  Perhaps someone can point me to a 
> resourse.
> 
> I'm most interested in Blowfish, IDEA and RSA because I understand that 
> they are the most powerful and on DSA and ElGamal as I understand that 
> they are used by GPG.
> 
> I want to get an idea of the computing power needed to break those.  As 
> well as any other security concerns that I should be aware of.  I am a 
> mathematecian, I'm not afraid of doing some calculations to get the 
> answers I want.

It's not an easy question to answer, because it's a hard question to
ask right ;)

Probably the best resource to look at is the book Applied
Cryptography.  Also read http://www.samsimpson.com/pgpfaq.html for
some OpenPGP-specific discussion.

David
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