Università Roma Tre

Introduction to cryptography. Cryptosystem. Classical Ciphers: additive ciphers, substitution ciphers, affine ciphers, transposition cipher, Vigenere cipher, Hill cipher, affine linear ciphers.
Introduction to cryptanalysis. Cryptanalysis. Types of attack. Cryptanalysis of substitution, affine, Vigenere, Hill ciphers.
Elements of Shannon theory. Perfect secrecy. Characterization of cryptosystems realizing perfect secrecy. One-time pad. Stream ciphers. Linear shift registers.
Block ciphers. Substitution-permutation networks. Feistel ciphers. Data Encryption Standard. Triple DES. Advanced Encryption Standard (AES).
modes of operation.
Introduction to public key cryptography. Elements of complexity theory. Knapsack problem. Merkle-Hellman cipher.
The RSA cryptosystem. The square and multiply algorithm. Primality testing. RSA and factoring. Some attacks on RSA.
The discrete logarithm problem. Diffie-Hellman key exchange. Elgamal cryptosystem.
Digital signature. Signature schemes. The RSA scheme.
Notes on some cryptographic protocols.
Modular arithmetic. Groups, cyclic groups. Permutations. Congruences, Euler function, invertible elements in Zn. Finite fields. Euler's theorem, Fermat's little theorem. Euclidean algorithm for calculating the MCD.

D. Stinson, Cryptography: theory and practice, Chapman and Hall.
A. Languasco, A. Zaccagnini, Manuale di crittografia, Hoepli.
W. Stallings, Crittografia e sicurezza delle reti, McGraw Hill.

Kerberos e Diameter
Sicurezza IP
Web security
Authentication
Intrusion detection
Honey pot
Android security
Cloud security
Big data security
Forensics
Digital watermarking

Stallings’ Cryptography and Network Security, Seventh Edition