Cryptography
Security Practitioners' Forum (April 28, 2008) [Modern Cryptography]
Submitted by tintagel on Mon, 2008-04-28 18:30. Cryptography | Events | Meetings | SPFThe monthly meeting of the Security Practitioners' Forum (Security Users' Group)
- Topic: Cryptography 102
- Modern Cryptography
- Presenter: Jerry Crow
A continuation of the material covered in Cryptography 101 (March 2008), this presentation addresses contemporary cryptographic techniques in greater detail, with particular emphasis on so-called "public key" cryptography. I will avoid mathematical detail to the extent possible, but certain topics, public-key cryptography in particular, require a foray into basic mathematical concepts.
The presentation is organized as follows:
- Review of Crypto 101
- An unbreakable symmetric crypto system
- Basic mathematics of asymmetric systems
- Public Key cryptography
- Hashing algorithms
About the Speaker:
Jerry Crow's 35-year career in information technology includes experience with mainframe operating systems, notably Honeywell's GCOS; formal work with software engineering and software metrics; line management of a software development group; work with local and wide area networks; and administration level experience with every major flavor of commercial UNIX and Linux. His contemporary areas of focus include information technology security, information protection and computer forensics.
Security Practitioners' Forum (March 24, 2008) [Cryptography 101]
Submitted by tintagel on Mon, 2008-03-24 18:30. Cryptography | Events | Meetings | SPFThe monthly meeting of the Security Practitioners' Forum (Security Users' Group)
- Topic: Cryptography 101
- History of Cryptography through Enigma
- Presenter: Jerry Crow
This presentation will offer an overview of general cryptographic concepts and history, and then address the common cryptographic systems used prior to the advent of the digital computer.
The presentation is organized as follows:
- Historical origins of cryptography
- Notable individuals and dates
- Basics of substitution systems
- Automated substitution systems
- Military impact of cryptography
- 20th century cryptography
- Social impacts of cryptography
About the Speaker:
Jerry Crow's 35-year career in information technology includes experience with mainframe operating systems, notably Honeywell's GCOS; formal work with software engineering and software metrics; line management of a software development group; work with local and wide area networks; and administration level experience with every major flavor of commercial UNIX and Linux. His contemporary areas of focus include information technology security, information protection and computer forensics.
TechWeb: Cleaning up data breach costs 15x more than encryption
Submitted by tintagel on Thu, 2006-07-13 13:13. CryptographyITNews are running the following, rather interesting story:
Protecting customer records is a magnitude less expensive than paying for cleanup after a data breach or massive records loss, a research company said Tuesday.
Gartner analyst Avivah Litan said in a research note that data protection is cheaper than a data breach. She recently testified on identity theft at a Senate hearing held after the Department of Veterans Affairs lost 26.5 million vet identities.
"A company with at least 10,000 accounts to protect can spend, in the first year, as little as $US6 per customer account for just data encryption, or as much as $US16 per customer account for data encryption, host-based intrusion prevention, and strong security audits combined," Litan said in an accompanying statement. advertisement
FBI Password Database Compromised by Consultant
Submitted by tintagel on Thu, 2006-07-06 12:18. Cryptography | Exploits | PoliticsThe Seattle Times are running a priceless story about the FBI:
A government consultant, using computer programs easily found on the Internet, managed to crack the FBI's classified computer system and gain the passwords of 38,000 employees, including that of FBI Director Robert Mueller.
The consultant used a program downloaded from the Internet to extract "hashes" — user names, encrypted passwords and other information — from the FBI's database. Then he used another program to crack the passwords by using dictionary word comparisons, lists of common passwords and character substitutions to figure out the plain text passwords.
Gone in 20 Minutes: using laptops to steal cars
Submitted by tintagel on Wed, 2006-05-03 14:02. Applied | Cryptography | Hardware | VulnerabilitiesI realize that this is a case of the blindingly obvious, but many of us may not have considered that InfoSEC applies to your car too
From: LeftLaneNews - "High-tech thieves are becoming increasingly savvy when it comes to stealing automobiles equipped with keyless entry and ignition systems."
"While automakers and locksmiths are supposed to be the only groups that know where and how security information is stored in a car, the information eventually falls into the wrong hands."
VPN on a shoestring (budget)
Submitted by tintagel on Thu, 2006-04-13 23:54. CryptographyIn an unusual turn of events* there is a rather informative discussion on VPN solutions at Slashdot.
*Toung planted firmply in cheek.
Gramm-Leach-Bliley: No Duty To Encrypt
Submitted by tintagel on Tue, 2006-03-21 00:22. Cryptography | Financial Services | Legal | Politics | RegulationFindLaw.com have the following story:
"In a legal decision that could have broad implications for financial institutions, a court has ruled recently that a student loan company was not negligent and did not have a duty under the Gramm-Leach-Bliley statute to encrypt a customer database on a laptop computer that fell into the wrong hands."
SecurityFocus.com's Mark Rash has an excellent article about this decision[PFD].
Scott Granneman on DRM
Submitted by tintagel on Mon, 2006-03-20 18:27. Cryptography | Politics | ReviewsScott Granneman at SecurityFocus.com has published a rather lucid article on why DRM is a bad idea. While DRM is somewhat of a niche of the InfoSEC world, the choices we make today will likely have lasting effects on our industry, our liberties and the nature of personal property. Two of his more eloquent quotes follow:
"Digital Rights Managements hurts paying customers, destroys Fair Use rights, renders customers' investments worthless, and can always be defeated. Why are consumers and publishers being forced to use DRM?"
"When I realized that I couldn't copy text out of The Complete New Yorker, I felt like a sucker - a sucker that had been conned by the same people to whom I willingly gave my money. As a college instructor, I especially thought of the loss to my students..."
[NB: Yes. I'm on my soapbox. Time to get off of it again.]
Serious flaw in GPG uncovered, patched
Submitted by tintagel on Fri, 2006-03-10 00:44. Cryptography | Software | VulnerabilitiesAccording to this vulnerability report "it is possible for an attacker to take any signed message and inject extra arbitrary data." All versions of gnupg prior to 1.4.2.2 are affected.
GPG is the GNU Privacy Guard, a tool similar to PGP.


