Cryptography and Network Security Chapter 7 pptx

... 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” ...

Ngày tải lên: 06/03/2014, 16:20

... noisy channels Output FeedBack (OFB) Output FeedBack (OFB) Cryptography and Cryptography and Network Security Network Security Chapter 6 Chapter 6 Fourth Edition Fourth Edition by William ... DES K1 K1 (i) (i)  uses: high-speed network encryptions uses: high-speed network encryptions Counter (CTR) Counter (CTR) Advantages and Limitations of Advantages and...

Ngày tải lên: 06/03/2014, 16:20

... 248 248 97 97 = 160 = 160 (Alice) (Alice)  K K AB AB = y = y A A x x B B mod 353 = mod 353 = 40 40 233 233 = 160 = 160 (Bob) (Bob) Cryptography and Cryptography and Network Security Network ... on prime agree on prime q=353 q=353 and and a a =3 =3  select random secret keys: select random secret keys:  A chooses A chooses x x A A = 97, = 97, B...

Ngày tải lên: 15/03/2014, 17:20

... security detection, security audit trails, security recovery recovery Model for Network Security Model for Network Security Model for Network Security Model for Network Security  using this ... • computer, network, internet security computer, network, internet security  X.800 standard X.800 standard  security attacks, services, mechanisms security atta...

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 ... row and in the column letter in the same row and in the column of the other letter of the pair of the other letter of the pair Security of Playfair Cipher Security...

Ngày tải lên: 06/03/2014, 16:20

... 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97 101 103 1 07 109 113 1 27 61 67 71 73 79 83 89 97 101 103 1 07 109 113 1 27 131 ... 83 89 97 101 103 1 07 109 113 1 27 131 1 37 139 149 151 1 57 163 1 67 173 179 181 191 131 1 37 139 149 151 1 57 163 1 67 173 179 181 191 193 1 97 199 193 1...

Ngày tải lên: 06/03/2014, 16:20

... 88 5? 5? 88<1 87 88<1 87 9 9  & & C = 88 C = 88 7 7 mod 1 87 = 11 mod 1 87 = 11  & & M = 11 M = 11 23 23 mod 1 87 = 88 mod 1 87 = 88 ... Exponentiation Exponentiation  *< *<  )4...

Ngày tải lên: 06/03/2014, 16:20

... 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

... key cryptography 7: Network Security 1 Chapter 7: Network security Foundations: ❒ what is security? ❒ cryptography ❒ authentication ❒ message integrity ❒ key distribution and certification Security ... private (known only to receiver) 7: Network Security 11 Public key cryptography Figure 7. 7 goes here 7: Network Security 12 Public key encryption algorithms...

Ngày tải lên: 22/03/2014, 14:20

Ngày tải lên: 22/03/2014, 14:20