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Monthly Archive November, 2003

Zipofig. A story of ZIP archive recovery

Download Zipofig (.exe, 15k)
Recently I had a 2.7GB ZIP archive with 2857 files stored with “no compression” method. Each ZIP meant to be unzipped sooner or later and this one was not an exception. To my surprise, I failed when I tried to unzip it. Attempts with different versions of such different programs as WinZip, […]

Where to look for a prime factor?

Factoring is a Holy Grail of Math and modern cryptography. There are many newbies and pros likes to play around it. If you are one of them then you probably may be interested in the following fact.
Let N is a composite number and N = pq, where p and q are primes and p […]