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Cryptanalysis of A5/1

2008-02-22 06:31:45 by schneier in Schneier on Security
 
...cryptanalysis papers as far back as ten years ago What's new about this attack is: 1) it's completely passive, 2) its total hardware cost is around $1,000, and 3) the total time to break the key is about 30 minutes. That's impressive The cryptanalysis of A5/1 demonstrates an important cryptographic maxim: attacks always get better; they never...
 
Tags: cryptanalysis, a51 cryptanalysis papers, a51, attacks, time, total time, total hardware cost, faster attacks, abandon algorithms
 
 
 
 
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Rubber-Hose Cryptanalysis

2008-10-27 12:45:46 by schneier in Schneier on Security
 
...cryptanalysis : basically, beating the keys out of someone. Seems that this might have actually happened in Turkey: According to comments allegedly made by Howard Cox, a US Department of Justice official in a closed-door meeting last week, after being frustrated with the disk encryption employed by Yastremskiy, Turkish law enforcement may...
 
Tags: howard cox, cox, rubber-hose cryptanalysis, turkish law enforcement, physical coercion, disk encryption, password, multiple sources, comments allegedly
 
 
 
 
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America's Next Top Hash Function Begins

2008-11-20 02:00:00 by Bruce Schneier in Wired Security
 
...cryptanalysis before making a second cut in 2010. After another year of cryptanalysis, NIST will choose a winner in 2011. Expect a final standard by 2012 My advice for software developers is to let the process run its course. While it's tempting to use the new cool algorithms in your designs, it's far too soon to trust any of them. This...
 
Tags: hash function, sha, sha-3, algorithms, cool algorithms, sha family, nist held, unlike encryption algorithms, nist
 
 
 
 
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The Cipher on the Wall

2007-05-24 00:00:00 by Ari Juels in Speaking of Security, the RSA Blog and Podcast
 
The writing is on the wall for 1024-bit RSA," one trade publication has declared in response to the recent announcement of the successful factoring of a 307-digit (1017-bit) number. As 1024 bits is the length of many RSA keys used in practice today, a short journalistic leap of fancy raises the specter of imperiled retail transactions on the...
 
Tags: wall, 1024-bit rsa, short journalistic leap, recent announcement, retail transactions, wholly unclear, cipher, fancy raises, trade publication
 
 
 
 
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Skein and SHA-3 News

2008-11-19 06:14:48 by schneier in Schneier on Security
 
...cryptanalysis before making a second cut in 2010 Lastly, this is a really nice article on Skein. These submissions make some accommodation to the Core 2 processor. They operate in " little-endian " mode (a quirk of the Intel-like processors that reads some bytes in reverse order). They also allow a large file to be broken into chunks to split...
 
Tags: skein, skein-1024, skein-512, skein express surprise, skein website, skein code, submissions share, submissions, code
 
 
 
 
 
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Sergey Zarubin, 31yo
CISSP, CCSP
Moscow, Russia