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Cryptography 
Handbook of Applied Cryptography (A.J. Menezes, P.C. van Oorschot, S.A. Vanstone)
Lecture Notes on Cryptography (S. Goldwasser and M. Bellare)
Introduction to Modern Cryptography (M. Bellare and P. Rogaway)
Cryptography A-Z  
Basic Cryptanalysis Modern Cryptography (P. Rogaway)
Cryptography and Cryptanalysis Lecture Notes (A. Lysyanskaya)
Foundations of Cryptography (O. Goldreich) Cryptography's Role in Securing the Information Society
Public-Key Cryptography: Theory and Practice (von Dipl.-Inform Bodo Möller)
An Introduction to Cryptography [Mirror] [Mirror] [Mirror] [Mirror] [Mirror](PDF)
Public Key Cryptanalysis Using Algebraic and Lattice Methods (G. Durfee)