Cryptography and Network Security Chapter 10 pptx

... = 4040233233 = 160 = 160(Bob)(Bob) Cryptography and Cryptography and Network Security Network Security Chapter 10 Chapter 10 Fourth EditionFourth Editionby William Stallingsby ... bits)RSA/DSARSA/DSA(modulus size in bits)5656 112 51280 160 102 4112 224 2048128 256 3072192 384 7680256 512 15360 Chapter 10 – Chapter 10 – Key Management; Key Management; Other Public Key ... private-key encryption scheme between Alice and Bobencryption scheme between Alice and Bobif Alice and Bob subsequently communicate, if Alice and Bob subsequently communicate, they will...

Cryptography and Network Security Chapter 6 pptx

... channels Output FeedBack (OFB)Output FeedBack (OFB) Cryptography and Cryptography and Network Security Network Security Chapter 6 Chapter 6Fourth EditionFourth Editionby William Stallingsby ... DESK1K1(i)(i)uses: high-speed network encryptionsuses: high-speed network encryptions Counter (CTR)Counter (CTR) Advantages and Limitations of Advantages and Limitations of CTRCTRefficiencyefficiencycan ... stream) have a pseudo random have a pseudo random keystreamkeystreamcombined (XOR) with plaintext bit by bit combined (XOR) with plaintext bit by bit randomness of randomness of stream...

Cryptography and Network Security Chapter 7 pptx

... EKmKm[[XXi-1i-1]] ANSI X9.17 PRGANSI X9.17 PRG Cryptography and Cryptography and Network Security Network Security Chapter 7 Chapter 7Fourth EditionFourth Editionby William Stallingsby ... numbers”create “random numbers”although are not truly randomalthough are not truly randomcan pass many tests of “randomness”can pass many tests of “randomness”known as “pseudorandom numbers”known ... distributioncontrolling key usagecontrolling key usage Random NumbersRandom Numbersmany uses of many uses of random numbersrandom numbers in cryptography in cryptography nonces in authentication...

Cryptography and Network Security Chapter 1 doc

... Access Model for Network Access SecuritySecurity Cryptography and Cryptography and Network Security Network Security Chapter 1 Chapter 1Fourth EditionFourth Editionby William Stallingsby ... automated tools to protect files and other stored informationprotect files and other stored informationuse of networks and communications links use of networks and communications links requires ... •computer, network, internet securitycomputer, network, internet securityX.800 standardX.800 standardsecurity attacks, services, mechanismssecurity attacks, services, mechanismsmodels for network...

Cryptography and Network Security Chapter 2 pdf

... years 5.4 × 10 18 years1682168 = 3.7 × 10 502167 µs = 5.9 × 10 36 years 5.9 × 10 30 years26 characters (permutation)26! = 4 × 10 262 × 10 26 µs = 6.4 × 10 12 years 6.4 × 10 6 years ... English Letter FrequenciesEnglish Letter Frequencies Cryptography and Cryptography and Network Security Network Security Chapter 2 Chapter 2Fourth EditionFourth Editionby William Stallingsby ... at 10 6 decryptions/µs32232 = 4.3 × 10 9231 µs = 35.8 minutes2.15 milliseconds56256 = 7.2 × 10 16255 µs = 1142 years 10. 01 hours1282128 = 3.4 × 10 382127 µs = 5.4 × 10 24...

Cryptography and Network Security Chapter 8 doc

... TheoremDiscrete LogarithmsDiscrete Logarithms Cryptography and Cryptography and Network Security Network Security Chapter 8 Chapter 8Fourth EditionFourth Editionby William Stallingsby ... 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97 101 103 107 109 113 127 61 67 71 73 79 83 89 97 101 103 107 109 113 127 131 137 139 149 151 157 163 167 173 179 181 191 131 ... & 15 are relatively prime since factors of 8 are 1,2,4,8 and of 15 are 1,3,5,15 and 1 is the only 1,2,4,8 and of 15 are 1,3,5,15 and 1 is the only common factor common factor conversely...

Cryptography and Network SecurityChapter 9 doc

... n f = (f x a) mod n return freturn f Cryptography and Cryptography and Network Security Network Security Chapter 9 Chapter 9Fourth EditionFourth Editionby William Stallingsby ... public-key cryptography principles of public-key cryptography RSA algorithm, implementation, securityRSA algorithm, implementation, security Chapter 9 – Chapter 9 – Public Key Public Key Cryptography ... true name and the good name, or the true name and the good name, or the great name and the little name; and great name and the little name; and while the good or little name was made while...

Cryptography and Network Security Chapter 13 pot

... Digital Signature Algorithm Algorithm (DSA)(DSA) Cryptography and Cryptography and Network Security Network Security Chapter 13 Chapter 13Fourth EditionFourth Editionby William Stallingsby ... p = 2p = 2LL •where L= 512 to 102 4 bits and is a multiple of 64where L= 512 to 102 4 bits and is a multiple of 64• and q is a prime factor of and q is a prime factor of (p-1)(p-1)choose ... protocols (mutual & one-way)digital signature algorithm and standarddigital signature algorithm and standard Chapter 13 – Chapter 13 – Digital Signatures & Digital Signatures &...

CRYPTOGRAPHY AND NETWORK SECURITY: Principles and Practice pptx

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