'Private decryption key' diaporamas de présentation

Security

Security. 9.1 The security environment 9.2 Basics of cryptography 9.3 User authentication 9.4 Attacks from inside the system 9.5 Attacks from outside the system 9.6 Protection mechanisms 9.7 Trusted systems. Chapter 9. Security Environment.

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Chapter 8: Network Security

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Cryptography

Cryptography . Overview Symmetric Key Cryptography Public Key Cryptography Message integrity and digital signatures References: Stallings Kurose and Ross Network Security: Private Communication in a Public World , Kaufman, Perlman, Speciner. Cryptography issues.

902 views • 62 slides

Cry ptographic Concepts

CS 99j. Cry ptographic Concepts . John C. Mitchell Stanford University. Basic Concepts. Encryption scheme: functions to encrypt, decrypt data key generation algorithm Secret vs. public key Public key: publishing key does not reveal key -1

703 views • 49 slides

Lecture 24 Cryptography

Lecture 24 Cryptography. CPE 401 / 601 Computer Network Systems. slides are modified from Jim Kurose and Keith Ross and Dave Hollinger. Cryptography. Encryption Scramble data so that only someone with a secret can make sense of the data. Decryption Descrambling encrypted data. K. K.

531 views • 43 slides

Fubswrjudskb

Cryptography. Fubswrjudskb. Definition: 1: secret writing 2: the encrypting and deciphering of messages in secret code or cipher 3: the science of hiding the meaning of a message. Steganography. Hiding the existence of a message.

370 views • 36 slides

Introduction to Modern Cryptography Homework assignments

Introduction to Modern Cryptography Homework assignments . Pollards p -1 factoring algorithm . Let B be a smoothness bound Let Q be the LCM of all prime powers ? B If ( p -1) is B -smooth then and for any a , gcd( a , p )=1, .

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17.5.3 Encryption

17.5.3 Encryption. A DBMS can use encryption to protect information in certain situations where the normal security mechanisms of the DBMS are not adequate. For example, an intruder may steal tapes containing some data or tap a communication line.

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Asymmetric encryption

314 views • 11 slides

RSA

269 views • 9 slides