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U.S. Encryption Laws Weaken: Court Dismisses Cold War Case

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A pioneering attempt to overturn the U.S. government's Cold War-era laws restricting the publication of some forms of encryption code ended quietly Wednesday when a federal judge dismissed the lawsuit--but only after assurances that the anticrypto laws would not be enforced. . . .

LinuxSecurity.com Team
Oct 16, 2003

Cryptology Workshop: Exploring Information Security Applications

Cryptography was until recently an exclusive domain of the defense and security agencies. However, with the explosive growth of computerization, networking and the Internet coupled with the increasing importance of electronic commerce, cryptography has become an essential component of all electronic . . .

LinuxSecurity.com Team
Oct 15, 2003

Explore Block Ciphers and Character-Based Encryption Techniques

All of the cypher systems we have looked at so far have been single-key character cyphers. By this, we mean that the same key which is used to encrypt the plaintext into the ciphertext is used to recover the plaintext from . . .

LinuxSecurity.com Team
Oct 01, 2003

OpenSSL Advisory: Critical DoS and Code Execution Risks Detected

Security researchers have discovered a pair of vulnerabilities in the OpenSSL software package, one of which may allow an attacker to execute code on vulnerable machines.. . .

LinuxSecurity.com Team
Sep 30, 2003

OpenSSL: Various ASN.1 Memory Vulnerabilities Causing DoS Risks

CERT is coordinating multiple security vulnerabilities in OpenSSL, the open source SSL/TLS implementation including an ASN.1 memory deallocation vulnerability and an ASN.1 tag vulnerability.. . .

LinuxSecurity.com Team
Sep 30, 2003

Enhancing Data In Motion Security By Rethinking Encryption

Any hacker can tell you that data 'at rest' is much easier to access, but security efforts are being targeted in the wrong place, using complex, costly encryption schemes for data in motion.. . .

LinuxSecurity.com Team
Sep 30, 2003

Techniques Of Steganography For Information Concealment

Steganography is a technique for embedding information in files such that it is not obvious that this information has been embedded. The technique is extensively used in putting digital watermarks in such things as digitized artwork, but it can also be . . .

LinuxSecurity.com Team
Sep 29, 2003

Exploring RSA Encryption in OpenSSL for Secure Financial Transactions

When sending your credit card number through a public medium, such as the Internet, your financial credibility may be compromised if the number is not first encrypted. It is impossible to tell who may be listening in on your connection as you shop for new CDs or books. The RSA encryption method often is used to hide your credit card number from would-be thiefs on the Internet, because it uses a public key to hide your information and a private key to reveal it.. . .

LinuxSecurity.com Team
Sep 25, 2003

Portable OpenSSH 3.7p1 Critical Advisory: Remote PAM Exploit Threat

Portable OpenSSH versions 3.7p1 and 3.7.1p1 contain multiple vulnerabilities in the new PAM code. At least one of these bugs is remotely exploitable (under a non-standard configuration, with privsep disabled). Vendor updates are in progress.. . .

LinuxSecurity.com Team
Sep 23, 2003

MagiQ Technologies Launches Navajo: Secure Quantum Key Distribution Network

Start-up MagiQ Technologies, from Somerville, Massachusetts, has released the first commercial implementation of quantum cryptography, the much-heralded solution to the perfect encryption cipher. Theoretically, encryption ciphers created using quantum physics are unbreakable. . .

LinuxSecurity.com Team
Sep 16, 2003

Ultramagnetic: Innovative Secure Messaging With Encryption Features

vindicator submits, Ultramagnetic is the name of a new open-source secure instant messaging client based on the popular Gaim software and GnuPG's libgcrypt library. It supports strong end-to-end encryption with 256-bit AES and anonymous routing with Hacktivismo's Six/Four protocol.. . .

LinuxSecurity.com Team
Sep 14, 2003

Improving Application Security: WAP and P2P Networks with Cryptography

In the previous installment of this series, we looked in particular at security for 802.11 networks. However, as we illustrated in that article, a secure network doesn't necessarily guarantee secure applications. In this article, we'll examine how to better lock down . . .

LinuxSecurity.com Team
Aug 18, 2003

A Developer's Guide to Implementing AES Encryption Successfully

The following document provides a detailed and easy to understand explanation of the implementation of the AES (RIJNDAEL) encryption algorithm. The purpose of this paper is to give developers with little or no knowledge of cryptography the ability to implement AES. . .

LinuxSecurity.com Team
Aug 13, 2003

Exploring Encryption Techniques and Open Source Solutions for Data Safety

Although ciphers long have been a staple of spy thrillers and mysteries, data encryption now has gained a real -- and critical -- foothold in the business world. "Encryption and authentication are playing a very important role, in particular . . .

LinuxSecurity.com Team
Aug 12, 2003

Understanding The Role Of Random Numbers In Secure Online Practices

Here's a random thought: "Everything we do to achieve privacy and security in the computer age depends on random numbers." So says Simon Cooper, an encryption expert and author of Building Internet Firewalls. Random number sequences have been around for . . .

LinuxSecurity.com Team
Jul 16, 2003

Advancements in Quantum Cryptography for Secure Communications

In a dark, quiet room inside the Boston labs of BBN Corp. (VZ ), network engineer Chip Elliott is using the laws of physics to build what he hopes will be an unbreakable encryption machine. The system, which sits atop a . . .

LinuxSecurity.com Team
Jul 16, 2003

Reliable LAN-to-LAN Connections with FreeS/WAN's X509 Patch

In countries where a private or semi-public WAN is something not every company can afford, the Internet is the only option available to connect all of those remote offices. The obvious problems are this is a public network and, in most . . .

LinuxSecurity.com Team
Jul 15, 2003

The Importance Of Public Key Infrastructure In Secure Document Transactions

Your company is negotiating a big deal with a partner, making you a bit nervous about the security of exchanging documents via email. There is a non-disclosure agreement in place, but you'd like to be absolutely certain that only the recipients . . .

LinuxSecurity.com Team
Jun 24, 2003

Understanding Data Security With Data At Rest Encryption

Everybody knows that it is easier to hit a stationary target than a fast-moving target. Yet an enormous amount of resources are being used to encrypt data in motion, while the bigger risk is in data at rest. One reason . . .

LinuxSecurity.com Team
Jun 16, 2003

Toshiba Develops 100km Quantum Technology For Secure Links

Researchers have developed new technology that could allow companies to implement hack-proof communications in three years. The technology, based on quantum cryptography, was demonstrated by Toshiba Research Europe this week working over distances of 100km for the first time. . . .

LinuxSecurity.com Team
Jun 09, 2003

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