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A cryptographic hash function reading guide

2007-11-23 16:01:18 by George Danezis in Light Blue Touchpaper
 
...functions, as teams with candidate hash algorithms will bitterly try to find flaws in each others proposals to ensure that their function becomes SHA-3. To fully appreciate the details of this competition, some of us may want a quick refresher on how to build secure hash function Here is a list of on-line resources for catching up with the...
 
Tags: function, hash functions, cryptographic hash functions, functions, functions secure, design, hash function design, compression functions, secure hash function
 
 
 
 
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More trustworthy election systems via SDL?

2008-02-04 23:34:00 by sdl in The Security Development Lifecycle
 
...functions are implemented incorrectly, based on weak algorithms with known flaws, or used in an ineffective or insecure manner. Of particular concern is the fact that virtually all cryptographic key material is permanently hardcoded in the system (and is apparently identical in all Sequoia hardware shipped to different jurisdictions Software...
 
Tags: machine security concerns, security concerns, election systems, election, security, security researchers, election systems margin, margin, election management system
 
 
 
 
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RIP Cisco PIX

The Article has images
2008-02-06 06:46:31 by HASH0x8bc6004 in StillSecure, After All These Years
...functions. I think that is true for both the mid-market and the enterprise market. What happens is after they buy the UTM and set up either the firewall or IPS or what have you, geek nature takes over. They can't help themselves but to experiment and tinker and see what the other functions can do and how they work. If these other functions...
 
Tags: pix, box, utm box, utm, pix boxes, boxes, pix owners, utm duty, analyst
 
 
 
 
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RIP Cisco PIX

The Article has images
2008-02-06 07:00:00 by ashimmy in StillSecure, After All These Years
...functions. I think that is true for both the mid-market and the enterprise market. What happens is after they buy the UTM and set up either the firewall or IPS or what have you, geek nature takes over. They can't help themselves but to experiment and tinker and see what the other functions can do and how they work. If these other functions...
 
Tags: pix, box, utm box, utm, pix boxes, boxes, pix owners, utm duty, analyst
 
 
 
 
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Banning function calls, assurance, and retrofitting

2008-03-18 19:48:00 by Security Retentive in Security Retentive
 
...functions defined. The list includes the standard cast such as scanf, strcpy, strcat, etc. On top of that though they add some things that didn't make Microsoft's list ; for example, rand I don't technically have a problem with including rand() in the list of things to be extremely careful about, but whereas it is nearly impossible to...
 
Tags: code review experience, code, security sensitive context, context, security critical context, unsafe context, static analyzer, file defects, rand
 
 
 
 
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Know the Difference Between a NAC Client and a 1X Supplicant

2008-06-05 17:01:00 by JJ in Security Uncorked
 
...functions such as host enforcement or it may serve as an encryption termination point for IPSec tunnels created between the endpoint and a firewall, for example. Im sure well be seeing more and more bells and whistles added to the NAC Clients as time goes by 802.1X Supplicant. An 802.1X supplicant is a different creature all together. First...
 
Tags: client, nac client license, nac, nac client licenses, nac solution, nac client, supplicant, licenses, supplicant licenses
 
 
 
 
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How to use rank function in SQL Server 2005

2008-07-08 11:08:29 by Robert Sheldon in WhatIs: Enterprise IT tips and expert advice
 
SQL Server 2005 T-SQL includes a set of functions that let you rank the rows in your result set. SQL Server expert Robert Sheldon defines and gives examples of how to use the four ranking functions: ROW NUMBER, RANK, DENSE RANK and NTILE. Include one or more of these functions in your query SELECT clause and automatically assign a rank to each...
 
Tags: rank, dense rank, sql server, set, result set, query select clause, functions, result, t-sql includes
 
 
 
 
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What Does SHA1 is Broken Mean?

2007-12-12 07:35:00 by Eric Marvets in The Security Samurai
 
...functions allow us to take a fingerprint of data without storing the data itself. In a password scheme, instead of storing a users password (x) we instead store a hash of the password (f(x)). Later when the user wants to login, he again supplies a password which we hash and compare against our stored value Its also useful for ensuring the...
 
Tags: sha1, choose sha1, sha1 protects, hash data, data, sha1 drops, hash function, hash, function
 
 
 
 
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Hacking the Boeing 787

2008-01-07 12:38:44 by schneier in Schneier on Security
 
...functions required for the safe operation of the airplane. Because of this new passenger connectivity, the proposed data network design and integration may result in security vulnerabilities from intentional or unintentional corruption of data and systems critical to the safety and maintenance of the airplane. The existing regulations and...
 
Tags: data, airplane data buses, on-board computer networks, networks, systems, control systems, communication systems, control, aircraft data buses