[Q] Comparison of Encryption Algorithms

[Daniel Carrera]

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.