1.Network Security Topics || Network Security | Bangla
1.Network Security Topics || Network Security | Bangla
Total Topic :10
1.Principles of Network Security (CIA)
2.Topic 1
3.Topic 2 ( classical and Advanced Encryption techniques)
(Substitution : Caesar Cipher, Mono-Alphabetic cipher, playfair cipher,
Polyalphabetic cipher, Vigenere cipher, One Time Pad cipher)
Transposition:( Rail Fence cipher, Row Transposition cipher)
4.Topic 3 ( steam cipher, block cipher, DES,3DES ,AES)
5.AES (Advanced Encryption
(five steps ,
i. State Array 4 X 4
ii. Initial Round key
iii. SuBbytes
iv. ShiftRows
v. Mix Columns
)
6.RSA (Math-3 types shown)
Given, 1. p, q given find e
2. p, q, e given find d ,C
3. e, n given find p, q, d
7.VPN ( Ipsec/GRE and SSL technologies)
• Ipsec Over GRE, GRE over Ipsec
(i. ipsec protocol, AH=Authentication Header, ESP= Encapsulation Security Protocol
ii. confidentiality= DES, 3DES, AES, SEAL
iii. Integrity=MD5(Message Digest 5), SHA
iv. Authentication=PSK (pre shared key), RSA,
v. Deffie Hellman key exchange= DH-1,DH-2,DH-5, DH-24
8.Protecting the Networks
9.Network Attacks ( ARP cache poisoning, DHCP flood attack, SQL injection)
10.Endpoint Security