:::AES Questions:::

From: Pathos (pathos@mail.pt)
Date: 02/21/03 

From: "Pathos" <pathos@mail.pt>
Date: Fri, 21 Feb 2003 19:06:41 -0000

I'm planning on making a program similiar to SILC, Secure Internet Live
Conferencing, for windows, i'll need to encrypt messages in real time,
generate keys, manage them, etc.

I would like to know if AES is the best choice for the task(i'm just talking
about message encryption after secure key exchange, i know i'll also have to
dig into, prime generation, RSA, SHS, etc), i know they considered speed,
security, simplicity, memory usage, and other factors, in the selection of
the cipher, but some of those factors don't interest me much, like the
memory usage for instance, as long as is it secure and fast, it's great.
I'de like to know if AES is the best choice or if maybe some other AES
candidate, would be more apropriate, or even some other cipher.

And if i chose to use AES, what key size should i use?
128 is the only size specified in the specs, if i'm correct, they say that
it was the bit length that was most studied by Rijndael so they shouldn't
include any other. But isn't 128 just a bit small?

Thanks for reading
Pedro Azevedo

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