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Security Policies

Security Policies

Security Policies. Outline. Overview The nature of policies What they cover Policy languages The nature of mechanisms Types Secure vs . precise Underlying both Trust. Overview. Overview Policies Trust Nature of Security Mechanisms Policy Expression Languages

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605 views • 60 slides
CSC 405 Introduction to Computer Security

CSC 405 Introduction to Computer Security

CSC 405 Introduction to Computer Security. Topic 4. Security in Conventional Operating Systems -- Part II. Basic Concepts of UNIX Access Control: Users, Groups, Files, Processes. Each user has a unique UID Users belong to multiple groups Each file has 12 permission bits

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505 views • 49 slides
User Authentication and Cryptographic Primitives

User Authentication and Cryptographic Primitives

User Authentication and Cryptographic Primitives. Brad Karp UCL Computer Science. CS GZ03 / M030 11 th November, 2008. Outline. Authenticating users Local users: hashed passwords Remote users: s/key Unexpected covert channel: the Tenex password-guessing attack Symmetric-key-cryptography

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640 views • 48 slides
User Authentication and Cryptographic Primitives

User Authentication and Cryptographic Primitives

User Authentication and Cryptographic Primitives. Brad Karp UCL Computer Science. CS GZ03 / 4030 19 th November, 2007. Outline. Authenticating users Local users: hashed passwords Remote users: s/key Unexpected covert channel: the Tenex password-guessing attack Symmetric-key-cryptography

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608 views • 47 slides
One User, One Password: Integrating Unix Accounts and Computer Labs

One User, One Password: Integrating Unix Accounts and Computer Labs

One User, One Password: Integrating Unix Accounts and Computer Labs. David J. Blezard & Jerry Marceau University of New Hampshire. UNH Student Clusters. 13,000+ Students plus Faculty & Staff 3 Main Locations and 5 Satellite Locations Both Macintosh and Windows 200 Total Computers

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399 views • 33 slides

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