pkcrack 1.2.2 review
Downloadpkcrack is an implementation of a known plaintext attack on password encrypted ZIP archives
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pkcrack is an implementation of a known plaintext attack on password encrypted ZIP archives. For the attack to be successful you have to have at least 106 bytes of unencrypted compressed data from the given ZIP archive (the data must be compressed using the same compression method as the encrypted counterpart). Providing this, the sophisticated attack can be thousand times (or even more) faster than a brute force attack (considering non-trivial long password). The speed is affected by the amount of plaintext you transmit.
What's New in This Release:
"Relf" has found and fixed a bug that caused pkcrack to fail under certain circumstances (roughly one out of 32 keys couldn't be found). Thanks!
Two more options for pkcrack, also by "Relf" (Thanks again!): -a will stop stage2 immediately when a combination of key0, key1, key2 has been found -n disables the (new!) progress indicator
corrected handling of 'data descriptor' in extract-functions (Thanks to "Relf" and Andreas Lessig !)
zipdecrypt now uses dynamic allocation for directory entries, which means the 200 files limit is gone
The extract program now has a -v flag to print a verbose description of the ZIP file
Considerable speedups in stage1
The source distribution now includes an automated test suite
pkcrack 1.2.2 keywords