MTech Assgnment-1 Cryptography and Network Security

1.      Describe the OSI Security Architecture.

2.      Explain the various services, mechanisms and attacks related to network security.

3.      Explain the three classifications of cryptography.

4.      What are the differences between the following.

(i)                  Stream cipher and Block cipher

(ii)                Confusion and Diffusion

(iii)               Linear and Differential cryptanalysis

(iv)              Symmetric and Asymmetric cryptosystems

(v)                Reversible and Irreversible mapping.

5.      Explain the strength of DES algorithm.

6.      What are Block Cipher Principles.