Cryptography & network security

Ngày tải lên: 07/12/2013, 11:53

... Kurosawa On the Security of Cryptosystems with All-or-Nothing Transform Rui Zhang, Goichiro Hanaoka, Hideki Imai Internet Security Centralized Management of Virtual Security Zones in IP Networks Antti ... it covers many security requirements in a single security model. This simplifies security proofs since we only need to prove universal composability to prove all these specific...

Ngày tải lên: 25/03/2014, 11:07

... possible types of network security violations, it illustrates the range of concerns of network security. 1.1 COMPUTER SECURITY CONCEPTS A Definition of Computer Security The NIST Computer Security Handbook ... Overview 7 1.1 Computer Security Concepts 9 1.2 The OSI Security Architecture 14 1.3 Security Attacks 15 1.4 Security Services 19 1.5 Security Mechanisms 23 1.6...

Ngày tải lên: 07/12/2013, 11:53

... practice of cryptography and network security. First, the basic issues to be addressed by a network security capability are explored through a tutorial and survey of cryptography and network sec ... types of security violations, it illustrates the range of concerns of network security. [Page 9] Internetwork security is both fascinating and complex. Some of the reasons fol...

Ngày tải lên: 18/02/2014, 08:20

... Encryption P Decryption Receiver P' C' Eavesdropper Network C = S K (P) C' = S -1 K (P') Key: K Fundamentals of Wired and Wireless Networks, Kameswari Chebrolu and Bhaskaran ... possibilities: – Unconditional – Computational security ● Unconditional security: an example – One-time tape ● Most systems have computational security – How much security to have? – Depen...

Ngày tải lên: 05/03/2014, 23:20

... Aspects of Security Aspects of Security  consider 3 aspects of information security: consider 3 aspects of information security:  security attack security attack  security mechanism security ... • computer, network, internet security computer, network, internet security  X.800 standard X.800 standard  security attacks, services, mechanisms security attacks, se...

Ngày tải lên: 06/03/2014, 16:20

... pair is a repeated letter, insert if a pair is a repeated letter, insert filler like 'X’ filler like 'X’ 2. 2. if both letters fall in the same row, if both letters fall in the same ... plaintext  since for any plaintext & any ciphertext there exists a key mapping one to other  can only use the key once though  problems in generation & safe distribution of key Vige...

Ngày tải lên: 06/03/2014, 16:20

... blocks of data main use is sending a few blocks of data Cryptography and Cryptography and Network Security Network Security Chapter 6 Chapter 6 Fourth Edition Fourth Edition by William ... E K1 K1 (D (D K2 K2 (E (E K1 K1 (P))) (P)))  nb encrypt & decrypt equivalent in security nb encrypt & decrypt equivalent in security  if if K1=K2 K1=K2 then can work wi...

Ngày tải lên: 06/03/2014, 16:20

... B 2. 2. third party can select & deliver key to A & B third party can select & deliver key to A & B 3. 3. if A & B have communicated previously can if A & B have communicated ... Generators Pseudorandom Number Generators (PRNGs)” (PRNGs)” Cryptography and Cryptography and Network Security Network Security Chapter 7 Chapter 7 Fourth Edition Fourth...

Ngày tải lên: 06/03/2014, 16:20

... No . . . no, I haven't proved it." "Eh? No . . . no, I haven't proved it." "Then I can have whatever I ask for? Money? The Presidency?' "Then I can have ... n n -1 -1 ) ) then then return(" maybe prime ") return(" maybe prime ") 6. return ("composite") 6. return ("composite") Euler Totient Function Euler...

Ngày tải lên: 06/03/2014, 16:20