This week, perhaps the most interesting articles include "DNS Security and Threat Mitigation," "," and "Establish More Effective Security Capabilities with OpenSSH."

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LinuxSecurity.com Feature Extras:

RFID with Bio-Smart Card in Linux - In this paper, we describe the integration of fingerprint template and RF smart card for clustered network, which is designed on Linux platform and Open source technology to obtain biometrics security. Combination of smart card and biometrics has achieved in two step authentication where smart card authentication is based on a Personal Identification Number (PIN) and the card holder is authenticated using the biometrics template stored in the smart card that is based on the fingerprint verification. The fingerprint verification has to be executed on central host server for security purposes. Protocol designed allows controlling entire parameters of smart security controller like PIN options, Reader delay, real-time clock, alarm option and cardholder access conditions.

pgp Key Signing Observations: Overlooked Social and Technical Considerations - While there are several sources of technical information on using pgp in general, and key signing in particular, this article emphasizes social aspects of key signing that are too often ignored, misleading or incorrect in the technical literature. There are also technical issues pointed out where I believe other documentation to be lacking. It is important to acknowledge and address social aspects in a system such as pgp, because the weakest link in the system is the human that is using it. The algorithms, protocols and applications used as part of a pgp system are relatively difficult to compromise or 'break', but the human user can often be easily fooled. Since the human is the weak link in this chain, attention must be paid to actions and decisions of that human; users must be aware of the pitfalls and know how to avoid them.

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Thank you for reading the LinuxSecurity.com weekly security newsletter. The purpose of this document is to provide our readers with a quick summary of each week's most relevant Linux security headline.


RSA crypto attack poses threat to DRM
27th, November, 2006

Security researchers have developed a new approach to breaking the RSA algorithm that creates new problems for the development of effective rights management software. Cryptoanalysts already known the time taken to make different calculations using the same encryption key might, in theory at least, give attackers code-breaking clues in much the same way electro-magnetic leakage or power fluctuations can be used in so-called "side-channel" attacks on secure systems. The new so-called Branch Prediction Analysis (BPA) attack is a refinement on this approach that makes code breaking feasible on commodity PCs instead of expensive high-performance kit.

news/cryptography/rsa-crypto-attack-poses-threat-to-drm
PKI Gets Shot In The Arm From HSPD-12
27th, November, 2006

In 1995, when Tim Polk began working full time on developing standards and guidance for using public-key infrastructure applications, he figured it would be a two- or three-year project. But 11 years later, Polk, the National Institute of Standards and Technology