Cryptography Network Security Notes pdf – CNS Notes Pdf

Cryptography Network Security Notes pdf – CNS notes pdf file

Cryptography Network Security Notes pdf – CNS pdf notes – CNS notes pdf file to download are listed below please check it –

Latest Material Links

Link – Complete Notes

Link – Unit 1 Notes

Link – Unit 2 Notes

Link – Unit 3 Notes

Link – Unit 4 Notes

Link – Unit 5 Notes

Old Material Link

Link:Complete Notes

Note :- These notes are according to the R09 Syllabus book of JNTU.In R13 and R15,8-units of R09 syllabus are combined into 5-units in R13 and R15 syllabus. If you have any doubts please refer to the JNTU Syllabus Book.

Introduction

Information Transferring

Attack: Interruption,Interception,Modification,Fabrication

Attacks, Services and Mechanisms,Important Features of Security.

Network Security Model,Cryptography,Basic Concepts,Encryption and Decryption.

Security,History,Classical Cryptographic Techniques.

Key Management,Attacks,Possible Attacks.Steganography,Caesar Cipher.

Mathematical Model,Character Frequencies,Letter Frequency Analysis.

Modular Arithmetic Cipher,

Letter Frequency Analysis:Single Letter, Double Letter,Triple Letter.

Playfair Cipher:Use filler letter to separate repeated letters,Encrypt two letters together.

Analysis:Difficult to use frequency analysis,But vulnerable to known-plain text attack.

Poly alphabetic Substitution and for more please download the above PDF file.

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