CS1355 – CRYPTOGRAPHY AND NETWORK SECURITY

CS1355 – CRYPTOGRAPHY AND NETWORK SECURITY

UNIT I
FUNDAMENTALS

               OSI security architecture − Classical encryption techniques − Cipher principles − Data encryption standard − Block cipher design principles and modes of operation − Evaluation criteria for AES − AES cipher − Triple DES − Placement of encryption function − Traffic confidentiality.

UNIT II
 PUBLIC KEY CRYPTOGRAPHY

              Key management − Diffie-Hellman key exchange − Elliptic curve architecture and cryptography − Introduction to number theory − Confidentiality using symmetric encryption − Public key cryptography and RSA.

UNIT III
AUTHENTICATION AND HASH FUNCTION

              Authentication requirements − Authentication functions − Message authentication codes − Hash functions − Security of Hash Functions and Macs − MD5 Message Digest Algorithm − Secure hash algorithm − RIPEMD − HMAC Digital Signatures − authentication protocols − Digital signature standard.

UNIT IV
NETWORK SECURITY

            Authentication applications − Kerberos − X.509 authentication service − Electronic mail security − PGP − S/MIME − IP security − Web security.

UNIT V
SYSTEM LEVEL SECURITY

           Intrusion detection − Password management − Viruses and related threats − Virus counter measures − Firewall design principles − Trusted systems.

2marks and 16 marks Question bank
Cryptography and Network Security Notes

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