Cryptography and Network Security Chapter 8 doc

... Theorem  Discrete Logarithms Discrete Logarithms Cryptography and Cryptography and Network Security Network Security Chapter 8 Chapter 8 Fourth Edition Fourth Edition by William Stallings by ... 1  eg. 8 & 15 are relatively prime since factors of 8 are eg. 8 & 15 are relatively prime since factors of 8 are 1,2,4 ,8 and of 15 are 1,3,5,15 and...

Ngày tải lên: 06/03/2014, 16:20

... • computer, network, internet security computer, network, internet security  X .80 0 standard X .80 0 standard  security attacks, services, mechanisms security attacks, services, mechanisms  models for network ... security detection, security audit trails, security recovery recovery Model for Network Security Model for Network Security Model for Network S...

Ngày tải lên: 06/03/2014, 16:20

... En/Decryption  ;<& ;<&    M = 88 M = 88 5? 5? 88 < 187 88 < 187 9 9  & & C = 88 C = 88 7 7 mod 187 = 11 mod 187 = 11  & & M ... x a) mod n f = (f x a) mod n return f return f C...

Ngày tải lên: 06/03/2014, 16:20

... languages English Letter Frequencies English Letter Frequencies Cryptography and Cryptography and Network Security Network Security Chapter 2 Chapter 2 Fourth Edition Fourth Edition by William ... 10 9 2 31 µs = 35 .8 minutes 2.15 milliseconds 56 2 56 = 7.2 × 10 16 2 55 µs = 1142 years 10.01 hours 1 28 2 1 28 = 3.4 × 10 38 2 127 µs = 5.4 × 10 24 years 5.4 ×...

Ngày tải lên: 06/03/2014, 16:20

...  standard allows any number of bit (1 ,8, 64 or standard allows any number of bit (1 ,8, 64 or 1 28 etc) to be feed back 1 28 etc) to be feed back  denoted CFB-1, CFB -8, CFB-64, CFB-1 28 etc ... noisy channels Output FeedBack (OFB) Output FeedBack (OFB) Cryptography and Cryptography and Network Security Network Security Chapter 6 Chapter 6 Fourth Edition Fo...

Ngày tải lên: 06/03/2014, 16:20

... E Km Km [ [ X X i-1 i-1 ] ] ANSI X9.17 PRG ANSI X9.17 PRG Cryptography and Cryptography and Network Security Network Security Chapter 7 Chapter 7 Fourth Edition Fourth Edition by William ... numbers” create “random numbers”  although are not truly random although are not truly random  can pass many tests of “randomness” can pass many tests of “randomness”  known as...

Ngày tải lên: 06/03/2014, 16:20

... 353 = mod 353 = 40 40 233 233 = 160 = 160 (Bob) (Bob) Cryptography and Cryptography and Network Security Network Security Chapter 10 Chapter 10 Fourth Edition Fourth Edition by William ... load in storing and processing keys and messages and processing keys and messages  an alternative is to use elliptic curves an alternative is to use elliptic curves  of...

Ngày tải lên: 15/03/2014, 17:20

... Signature Digital Signature Algorithm Algorithm (DSA) (DSA) Cryptography and Cryptography and Network Security Network Security Chapter 13 Chapter 13 Fourth Edition Fourth Edition by William ... signature  with 512-1024 bit security with 512-1024 bit security  smaller and faster than RSA smaller and faster than RSA  a digital signature scheme only a digit...

Ngày tải lên: 15/03/2014, 17:20

... controversy CS595 -Cryptography and Network Security Cryptography and Network Security Block Cipher Xiang-Yang Li CS595 -Cryptography and Network Security History q IBM LUCIFER 60’s Ø Uses 1 28 bits key q ... Permutations 25571749941133 26 581 8501042234 275919511143335 286 020521244436 296121531345537 3062225414466 38 316323551547739 3264245616 488 40 CS595 -Cryptogr...

Ngày tải lên: 22/03/2014, 14:20

... Wired and Wireless Networks, Kameswari Chebrolu and Bhaskaran Raman, 09-13 May 2005 Cryptography and Network Security Bhaskaran Raman Department of CSE, IIT Kanpur Reference: Whitfield Diffie and ... Phi(N) = 480 – Choose E = 7, then D = 343 – If M = 2, Encryption: C = 1 28 – Decryption: D = C D mod N = 1 28 343 mod 527 = 2 Fundamentals of Wired and Wireless Networks, Kam...

Ngày tải lên: 05/03/2014, 23:20