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Encryption

Second 3G GSM Cipher Cracked 57

Posted by Soulskill from the dropping-like-encrypted-flies dept.
Trailrunner7 writes "A group of cryptographers has developed a new attack that has broken Kasumi, the encryption algorithm used to secure traffic on 3G GSM wireless networks. The technique enables them to recover a full key by using a tactic known as a related-key attack, but experts say it is not the end of the world for Kasumi. Kasumi, also known as A5/3, is the standard cipher used to encrypt communications on 3G GSM networks, and it's a modified version of an older algorithm called Misty. In the abstract of their paper, the cryptographers say the attack can be implemented easily on one standard PC. 'In this paper we describe a new type of attack called a sandwich attack, and use it to construct a simple distinguisher for 7 of the 8 rounds of KASUMI with an amazingly high probability of 214. By using this distinguisher and analyzing the single remaining round, we can derive the complete 128 bit key of the full KASUMI by using only 4 related keys, 226 data, 230 bytes of memory, and 232 time. These complexities are so small that we have actually simulated the attack in less than two hours on a single PC, and experimentally verified its correctness and complexity.'"
Data Storage

Submission + - Up to 10% of CD-Rs fail within a few years! (techarp.com) 1

Submitted by
crazyeyes
crazyeyes writes: "Here's an interesting look at how fragile CD-Rs are :

In the past, hard disk drives were small (in capacity) and costly. To make up for the lack of affordable storage, many turned to CD-Rs. As it became common to store backups and personal pictures, videos, etc. on CD-Rs, the lifespan of these discs became a concern.

According to manufacturers, CD-Rs should last for decades. Some even quoted an upper limit of 120 years based on accelerated aging tests! That sure is a long time, isn't it? But will CD-Rs really last that long?

"
Role Playing (Games)

Editor, DLC Coming To Fallout 3 98

Posted by Soulskill from the that-was-quick dept.
Bethesda has announced that an editor for the Windows version of Fallout 3 will be coming in December. They also said the first additional downloadable content for the Windows and XBox 360 versions will follow in January. MTV's Multiplayer blog got a few more details from Bethesda's Pete Hines, who said additions to Fallout 3 will resemble the Oblivion expansion pack Knights of the Nine in size and scope. MTV then brought up the question of how early publishers should provide DLC, pointing to Fallout 3 and Fable II as examples of games for which the expansions were planned to go live only a few months after launch.

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