20 Csci283 PPTs View free & download

CSCI283/172 Fall 2006 PowerPoint PPT Presentation

CSCI283/172 Fall 2006 - An attempt at cryptanalysis is an attack ... Substitution cipher - cryptanalysis ... Substitution cipher - cryptanalysis. A B C D E F G H I J K L M N O P Q R S ...

An attempt at cryptanalysis is an attack ... Substitution cipher - cryptanalysis ... Substitution cipher - cryptanalysis. A B C D E F G H I J K L M N O P Q R S ...

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CSCI283 Fall 2005 PowerPoint PPT Presentation

CSCI283 Fall 2005 - Diffie-Hellman Key Exchange. Protocol for exchanging secret key over public channel. ... of a message in a manner that is provable to a disinterested third party ...

Diffie-Hellman Key Exchange. Protocol for exchanging secret key over public channel. ... of a message in a manner that is provable to a disinterested third party ...

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CSCI283 Fall 2003 Lecture 8 PowerPoint PPT Presentation

CSCI283 Fall 2003 Lecture 8 - Handbook of Applied Crypto; free online book really great reference on all crypto algorithms ... (a) = (aL aU) where aL is the lowest classification of ...

Handbook of Applied Crypto; free online book really great reference on all crypto algorithms ... (a) = (aL aU) where aL is the lowest classification of ...

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CSCI283/172 Fall 2006 - Model: policy representation: check if policy can be enforced. Design: implementation of policy ... Enforces security mechanisms of entire OS; provides security ...

Model: policy representation: check if policy can be enforced. Design: implementation of policy ... Enforces security mechanisms of entire OS; provides security ...

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CSCI283 Fall 2005 - Cathy knows Alice will send Bob one of two messages: enciphered BUY, or enciphered SELL ... Cryptographically hash the entire message and sign it ...

Cathy knows Alice will send Bob one of two messages: enciphered BUY, or enciphered SELL ... Cryptographically hash the entire message and sign it ...

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CSCI283 Fall 2003 Lecture 6 PowerPoint PPT Presentation

CSCI283 Fall 2003 Lecture 6 - Sources for info on malware. 9/22/09. CS283/Fall03/GWU/Vora/Lecture5. 5. Access Control Mechanisms ... A group security identifier. ...

Sources for info on malware. 9/22/09. CS283/Fall03/GWU/Vora/Lecture5. 5. Access Control Mechanisms ... A group security identifier. ...

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CSCI283 Fall 2005 - Birthdate. ZIP. Party. Add-ress. Name. 10/2/09. CS283/Fall05/GWU/Vora/Databases. 27 ... Race BirthDate Gender ZIP Problem Race BirthDate Gender ZIP Problem ...

Birthdate. ZIP. Party. Add-ress. Name. 10/2/09. CS283/Fall05/GWU/Vora/Databases. 27 ... Race BirthDate Gender ZIP Problem Race BirthDate Gender ZIP Problem ...

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CSCI283 Fall 2005 Lecture IV PowerPoint PPT Presentation

CSCI283 Fall 2005 Lecture IV - ... information on RSA, the names of Israel's cabinet ministers ... President of the USA. Prime Minister of Israel. Saddam Hussein. Bin Laden. Assess their ...

... information on RSA, the names of Israel's cabinet ministers ... President of the USA. Prime Minister of Israel. Saddam Hussein. Bin Laden. Assess their ...

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CSCI283/172 Fall 2006 - A piece of information (lock) associated with the object. ... It is a kind of lock and key access with the pieces of information being the type. ...

A piece of information (lock) associated with the object. ... It is a kind of lock and key access with the pieces of information being the type. ...

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CSCI283 Fall 2003 Lecture 10 PowerPoint PPT Presentation

CSCI283 Fall 2003 Lecture 10 - YOU ARE EXPECTED TO READ CHAPTER 5 FROM THE TEXT IN ... CS283/Fall03/GWU/Vora/Lecture10. 2. Announcements. No class/office hours day before Thanksgiving ...

YOU ARE EXPECTED TO READ CHAPTER 5 FROM THE TEXT IN ... CS283/Fall03/GWU/Vora/Lecture10. 2. Announcements. No class/office hours day before Thanksgiving ...

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CSCI283-172 Fall 2006 - Security classes are ordered by a relation dom ... Now L(Major) dom curlevel(Colonel) Colonel can write to Major without violating 'no writes down' ...

Security classes are ordered by a relation dom ... Now L(Major) dom curlevel(Colonel) Colonel can write to Major without violating 'no writes down' ...

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CSCI283/172 Fall 2006 - CS283-172/Fall06/GWU/Vora/Stream Ciphers All s from Bishop's set. 2 ... Set r to r and iterate, repeatedly enciphering register and extracting key bits, ...

CS283-172/Fall06/GWU/Vora/Stream Ciphers All s from Bishop's set. 2 ... Set r to r and iterate, repeatedly enciphering register and extracting key bits, ...

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CSCI283 Fall 2005 Lecture IV - Betty hired as the new bookkeeper, so she now has access to those records. The role of 'bookkeeper' dictates access, not the identity of the individual. 10/3/09 ...

Betty hired as the new bookkeeper, so she now has access to those records. The role of 'bookkeeper' dictates access, not the identity of the individual. 10/3/09 ...

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CSCI283 Fall 2005 Lecture 2, Part II PowerPoint PPT Presentation

CSCI283 Fall 2005 Lecture 2, Part II - ... bank allows its central safe to be opened by any three of its top seven officers. Fewer than three of the top seven may not open it. ...

... bank allows its central safe to be opened by any three of its top seven officers. Fewer than three of the top seven may not open it. ...

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CSCI283 Fall 2005 Lecture III Part 1 PowerPoint PPT Presentation

CSCI283 Fall 2005 Lecture III Part 1 - CSCI283 Fall 2005 Lecture III Part 1. GWU. Security Policy. Slides added on to clarify definitions of precision and security. 10/15/09 ...

CSCI283 Fall 2005 Lecture III Part 1. GWU. Security Policy. Slides added on to clarify definitions of precision and security. 10/15/09 ...

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CSCI283 Fall 2005 Lecture III Part 1 - Memon's notes, Brooklyn Poly. Pfleeger Text, Chapter 5. Bishop's text, ... Lagrange Interpolation: f(x) = fj(x) fj (x) = yj k j (x-xk)/(xj-xk) Find f(0) 10/1/09 ...

Memon's notes, Brooklyn Poly. Pfleeger Text, Chapter 5. Bishop's text, ... Lagrange Interpolation: f(x) = fj(x) fj (x) = yj k j (x-xk)/(xj-xk) Find f(0) 10/1/09 ...

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CSCI283-172 Fall 2006 GWU PowerPoint PPT Presentation

CSCI283-172 Fall 2006 GWU - A military security policy (also called government security policy) is a ... individuals which can then be used for nefarious purposes (such as blackmail) ...

A military security policy (also called government security policy) is a ... individuals which can then be used for nefarious purposes (such as blackmail) ...

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Malicious Logic - Viruses - Buffer overflow PowerPoint PPT Presentation

Malicious Logic - Viruses - Buffer overflow - Because the entire system cannot be redesigned, there's a limit to how much a ... Antivirus mechanisms. Buffer overflow, format string vulnerabilities. 11/13/09 ...

Because the entire system cannot be redesigned, there's a limit to how much a ... Antivirus mechanisms. Buffer overflow, format string vulnerabilities. 11/13/09 ...

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CSCI283172 Fall 2006 - identify you when you return to a web site so you don't have to remember a password ... P3P-enabled site posts machine-readable privacy policy summary (IBM P3P editor) ...

identify you when you return to a web site so you don't have to remember a password ... P3P-enabled site posts machine-readable privacy policy summary (IBM P3P editor) ...

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CSCI283172 Fall 2006 - A covert storage channel uses an attribute of the shared resource, like whether ... This attribute can be checked at pre-determined time intervals. ...

A covert storage channel uses an attribute of the shared resource, like whether ... This attribute can be checked at pre-determined time intervals. ...

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Csci283 PowerPoint PPT Presentations