Archive for July 28th, 2007

Now..1023 bits number can be factorised!

28 Jul

Last March,researchers in University of Bonn and NTT company in Japan, have developed a mechanism to factorise a well-known 1023 bits number (307 digits).. the number is (2^1039 – 1), and it took them 11 months to do that!

Thisassures againthat cryptographic systems based on the hard-to-factor feature of 1024 bits numbers, are not secure!
So if you’re an RSA user for instance, you must not rely on 1024 bits keys anymore.. if you haven’t already, increase the length of your keys..
Are things happen faster than we’ve expected?!
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