Which Book Explains Modern Encryption Algorithms and Their Flaws?

[foges]

Hi. I am looking for a rather concise and good book on cryptography, which explains how modern encryption algorithms work and what their flaws are (eg. what's wrong with md5)

Thanks

 

[mgb_phys]

Anything by Bruce Schneier is usually worth it - "Applied Cryptography" is probably the best starting point.

 

[ks_physicist]

I am currently reading (as time permits) "Cryptological Mathematics" by Robert Lewand. He does a good job of explaining basic and advanced encryption schemes.