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Understanding Encryption Limitations In Digital Rights Management

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Now let’s be clear right from the start that if you want to have any kind of control over the content of an electronic document you have first of all got to use encryption. But encryption is only the start of implementing a DRM service. Poorly packaged encryption, badly thought out licensing, integration that exposes weaknesses in the packaging of the method for displaying the document, are all ways in which even the most powerful encryption system can be made useless. And, of course, there is the very important question about what is actually encrypted, and what, if anything, is not.

LinuxSecurity.com Team
Dec 09, 2005

Disk Encryption Strategies for Securing Sensitive Laptop Data

During the past two weeks, I started up a disk encryption project, one of the technology initiatives under my company's intellectual asset protection program. Our goal with the disk encryption effort is to prevent the loss of intellectual property stemming from the theft of a laptop. On several occasions, executives' laptops have gone missing or been stolen. One of those missing laptops contained intellectual property and sensitive data, including information on a pending acquisition, product strategy and road maps. Luckily, it was recovered.

LinuxSecurity.com Team
Dec 06, 2005

Factorization of RSA-640 and Its Encryption Significance

A team at the German Federal Agency for Information Technology Security (BSI) recently announced the factorization of the 193-digit number known as RSA-640. The team responsible for this factorization is the same one that previously factored the 174-digit number known as RSA-576 and the 200-digit number known as RSA-200.

LinuxSecurity.com Team
Nov 09, 2005

Delving Into PGP's History and Future Insights with Jon Callas

Recently we met with Jon Callas, CTO and CSO of PGP Corporation. Pretty Good Privacy (PGP) is today's most used crypto software with a lot of history. Presented here is the entire story of PGP in his words that covers everything from the the early days to future plans.

LinuxSecurity.com Team
Nov 08, 2005

Encryption Experts Address SHA-1 Flaws and Explore Alternatives

Encryption experts met in Gaithersburg, Maryland, this week to discuss retiring the SHA-1 hashing algorithm and creating a stronger version of the cryptographic workhorse.

LinuxSecurity.com Team
Nov 03, 2005

Unlocking Secure Access Control with OpenSSH Key Management

Ever since networking came out, one important issue, to a various extent over the time, has been how to give the legitimate users the right access - authentication, which is one of the three basic elements in security: authentication, authorization and access control.

LinuxSecurity.com Team
Oct 27, 2005

Keep Your Conversations Private With OTR Instant Messaging Encryption

Sometimes encryption isn't enough to keep your conversations private. With standard encryption, it's theoretically possible for someone to steal your secret encryption keys and decipher the conversation. For conversations that need to be kept confidential, the Off-the-Record (OTR) plugin for Gaim saves the day. It leaves no trace of a conversation ever having taken place.

LinuxSecurity.com Team
Oct 13, 2005

Guidelines For Federal Agencies On Implementing Cryptography

The US National Institute of Standards and Technology has released an updated draft version of its 'Guideline for Implementing Cryptography in the Federal Government'. This is the second edition of a white paper first released in 1999, and a welcome to the literature on practical applications of cryptography.

LinuxSecurity.com Team
Oct 03, 2005

Pointsec Launches Full-Disk Encryption For Linux Systems

The product is meant to ensure an entire hard drive's data can be encrypted in real time and only accessed by authorised users. A full-disk end-user software encryption product for Linux was launched on Monday by security software company Pointsec. Full-disk encryption protects all data on the hard disk including the operating system, system files, and "supposedly deleted files", the company claims.. Pointsec is pitching the product — Pointsec for Linux — at "large technology and telecommunications corporations needing to protect intellectual property stored on laptop and desktop computers".

LinuxSecurity.com Team
Sep 27, 2005

Exploring Data Governance Impacts on IT Security Practices

Data security is a major concern for all CIOs. This has been addressed from access and identity controls through encrypting data in transmission through to securing data at rest, on disk or on tape. The difference today is that threats are more sophisticated and business practices are more dependent on IT practices that span each organisation from individuals through to the data centre. The requirements for sound information governance include company practices, as well as financial reporting standards and legal issues, such as the Data Protection Act.

LinuxSecurity.com Team
Aug 25, 2005

Debate Over SHA-1 Integrity After Refined Attack Raises Alarms

Three Chinese researchers have further refined an attack on the encryption standard frequently used to digitally sign documents, making the attack 64 times faster and leaving cryptographers to debate whether the standard, known as the Secure Hash Algorithm, should be phased out more quickly than planned.

LinuxSecurity.com Team
Aug 24, 2005

Breaking News: Significant Progress In SHA-1 Complexity Reaches 2^63

Wang, Yu, and Yin, the team of Chinese cryptographers that successfully broke SHA-0 and SHA-1, announced new results against SHA-1 yesterday at Crypto's rump session. (Actually, Adi Shamir announced the results in their name, since she and her student did not receiveU.S. visas in time to attend the conference.)

LinuxSecurity.com Team
Aug 17, 2005

Comparative Analysis of PKI and PGP in Email Security Solutions

In Phil Zimmermann's response to "Does Phil Zimmermann need a clue on VoIP", Zimmermann offered a blistering attack on PKI based solutions and offered his own PGP solution as the superior alternative. There is just one little problem: the computing world chose PKI for the most part while PGP barely makes a dent in the email world.

LinuxSecurity.com Team
Aug 11, 2005

Key Reasons For Using Cryptography In Security Measures

Cryptography is already the de facto way of securing sensitive web traffic and it is now reaching across the entire enterprise as companies start to use industry-standard protocols such as SSL internally - even between servers only a few feet apart.

LinuxSecurity.com Team
Aug 05, 2005

NTT Achieves Quantum Cryptography Advancement in Photonic Networks

Japanese Nippon Telegraph and Telephone Corp. (NTT) has successfully demonstrated the quantum cryptography with a single photon can be realised in the photonic network of optical fibres. The quantum cryptography is expected to be the last resort of the cryptography protocol, and to enhance enormously the safety of transmitting information.

LinuxSecurity.com Team
Jul 26, 2005

The Rise of Spy Software: Threats to Business Data Integrity

For those of you who follow the news, you may have read the recent story of spy software discovered at some of Israel’s leading companies which reads just like the spy stories we’ve been reading for years. The imagined villains are in fact the victims, but more importantly the problem of spy software being prevalent in Israeli companies came as a result of one of the most comprehensive investigations involving computer crime ever undertaken. The Trojan had been introduced by providing companies with contaminated files, or sending a contaminated e-mail message to the companies. This also raises concerns that this evaded all the security measures in place at the companies infected.

LinuxSecurity.com Team
Jun 07, 2005

Understanding Encryption and Authentication Challenges With Dr. Walter

Dr. Walter, Head of Cryptography for Comodo Inc. and chair of the Trusted Computing Group (TCG) Peripheral Working Group, has clarified the relationship between encryption and authentication. The blurred definition to date has split the Certificate Authority industry into two groups. Authorities such as Comodo and VeriSign compete head to head, to deliver high assurance digital certificates whilst other groups concentrate on the low assurance market.

LinuxSecurity.com Team
May 30, 2005

Unhackable Networks: Photon Technology Breakthroughs in Quantum Security

Scientists have moved one step closer to the "unhackable" network by developing a device that can send single photons in a regular stream over a fiber optic link.

LinuxSecurity.com Team
May 26, 2005

The Crypto Wars End: A Win for Digital Privacy and Freedom

The "crypto wars" are finally over - and we've won! On 25th May 2005, Part I of the Electronic Communications Act 2000 will be torn out of the statute book and shredded, finally removing the risk of the UK Government taking powers to seize encryption keys.

LinuxSecurity.com Team
May 25, 2005

A Gentle Introduction to Cryptography: Encryption and Decryption Explained

Let us take the example of scrambling an egg. First, crack the shell, pour the contents into a bowl and beat the contents vigorously until you achieved the needed result - well, a scrambled egg. This action of mixing the molecules of the egg is encryption. Since the molecules are mixed-up, we say the egg has achieved a higher state of entropy (state of randomness). To return the scrambled egg to its original form (including uncracking the shell) is decryption. Impossible?

LinuxSecurity.com Team
May 12, 2005

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