Monday, January 7, 2019

Cryptography and Network Security S7 Computer Science Audio Notes Explained by Ms.Sreelekshmi

Cryptography and Network Security S7 Computer Science Audio Notes, Important Topics, Explained by Ms.Sreelekshmi from Indira Gandhi Institute of Engineering & Technology, Kothamangalam.

Module I
Symmetric Cipher Models- Substitution techniques- Transposition
techniques-Rotor machines-Steganography. Simplified DES- Block Cipher principles- The Data Encryption Standard, Strength of DES-Differential and linear Cryptanalysis. Block Cipher Design
principles- Block Cipher modes of operations.

Module III
Public key Cryptography: - Principles of Public key Cryptography
Systems, Number theory- Fundamental Theorem of arithmetic,
Fermat’s Theorem, Euler’s Theorem, Euler’s Totient Function,
Extended Euclid’s Algorithm, Modular arithmetic. RSA algorithm-
Key Management - Diffie-Hellman Key Exchange, Elliptic curve

Module V
Network security: Electronic Mail Security: Pretty good privacy-
S/MIME. IP Security: Architecture- authentication Header-
Encapsulating Security payload- Combining Security associations-
Key management.

Module VI
Web Security: Web Security considerations- secure Socket Layer
and Transport layer Security- Secure electronic transaction.
Firewalls-Packet filters- Application Level Gateway- Encrypted

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