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Category Archives: Cryptography
NIST has selected the Third (Final) Round Candidates of the SHA-3 Competition
NIST has selected five SHA-3 candidate algorithms to advance to the third (and final) round: BLAKE, Grøstl, JH, Keccak, Skein. Selection was announced during December 2010. What do you think, which algorithm will win competition and become new SHA-3 standard? You can vote in poll on this blog (right upper corner).
Here is citation for NIST announcement of 3rd (final) round candidates selection: Continue reading
Posted in Cryptography, Polls, Security Research
Tagged algorithms, BLAKE, competition, Grøstl, Hash, JH, Keccak, NIST, SHA-3, Skein
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New Version of CrypTool
New version of CrypTool has been released on August 4th, 2010. The current release version for users is CrypTool 1.4.30. It is available in English, German, Spanish, Polish, and from this version, in Serbian version. My students from “Visoka škola elektrotehnike i računarstva” from Belgrade, contributed localization of this software to Serbian language.
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Interception of GSM Calls
There is serious vulnerability with A5/1 encryption scheme used in GSM networks. It can lead to interception of GSM calls. This vulnerability has been presented by Karsten Nohl and Chris Paget at the 26th Chaos Communication Congress (26C3). Continue reading
Second Round Candidates of the Cryptographic Hash Algorithm Competition Selected
NIST has selected the Second Round Candidates of the SHA-3 Competition recently. Following 14 second round candidates to continue in the competition: Continue reading
Posted in Cryptography, Security Research
Tagged competition, Cryptographic Hash Algorithm, Keccak, NIST, Round 2, SHA-3, Skein
1 Comment
MD5 Collisions
It seems that bad days came for MD5 and those who based hashes on it. It is possible to create two executable programs with different functionalities with identical MD5 hash. Therefore, it is possible to create malicious executable which has … Continue reading
Posted in Cryptography, Security Research, Software Security, Threats, Vulnerabilities, Attacks
Tagged attach, collisions, Hash, Hongbo Yu, MD5, tool, Xiaoyun Wang
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NIST – A New Hash Competition Update
I had already written the post about NIST Competition for New Cryptographic Hash Function on my blog. Here are updates based on article by William E. Burr, “A New Hash Competition”, IEEE Security and Privacy, vol. 6, no. 3, pp. 60-62, … Continue reading
Posted in Cryptography, Security Research
Tagged competition, Hash, IEEE Security and Privacy, NIST
1 Comment
Cold Boot Attacks on Encryption Keys
If you’ve thought your data are secure on encrypted hard disk, read: Lest We Remember: Cold Boot Attacks on Encryption Keys. Researchers with Princeton University and the Electronic Frontier Foundation (EFF) have found a flaw that renders disk encryption systems useless if … Continue reading
Posted in Cryptography, Threats, Vulnerabilities, Attacks
Tagged attacks, cold boot attacks, disk encryption
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Paper Enigma Machine
Go to Paper Enigma Machine, download this one-page PDF file; print it using heavy card stock (recommended). You can then cut out the strips, and follow the directions on the page to build your own fully functional Enigma machine. Author … Continue reading
London Tube Free
The secret cipher that secures Mifare Classic RFID tags used in access control systems, subway tickets, and various other security-related applications has recently been disclosed. The attack works against the Mifare Classic, a wireless card made by Netherlands-based NXP Semiconductors. … Continue reading
Enigma Simulation in Flash
The Enigma was an electro-mechanical cipher machine used by the German Military during WW II. The following link shows Enigma Simulation done in Adobe Flash 8 by Dr. Frank Spiess. You will have chance to see how it worked. Highlighted … Continue reading