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Cryptography and Network Security cryptography-and-network-security-3-638 …
Cryptography and Network Security
Security services
Data confidentiality
Data integrity
Authentication
Non reputation
Access control
Security Mechanisms
Encipherment
Data integrity
Digital signature
Authentication exchange
Traffic padding
Routing control
Notarization
Access control
Goals of Cryptography
Integrity
Availibility
Confidentiality
Security attacks
Cryptographic attacks
Cipher text only
Known plaintext
Chosen plaintext
Chosen cipher text
Chosen text
Non cryptographic attacks
Snooping
Traffic analysis
Denial of service :
Modification : :
Masquerading
Replaying
Repudiation
