A good cryptanalysis text?

[Sherry Mayo <scmayo@rsc.anu.edu.au>]

> Hi all
> 
> A friend of mine is looking for a good introductory cryptanalysis
> text. Does Schneier's book cover this in much depth or is it more
> cryptography as the name implies.
> 
> My friend is a computer networking admin who is trying to widen
> his background knowledge of security related issues (this may
> mean that a more computing oriented intro is more suitable).
> 
> Thanks in advance for any suggestions.
> 
> Sherry
> 
>