Date: Sun, 19 Aug 2012 12:47:56 +0530 From: Dhiru Kholia <dhiru.kholia@...il.com> To: john-users@...ts.openwall.com Subject: Cracking PGP Desktop / OpenPGP / GnuPG private key files with JtR Hi, I have added support for cracking PGP Desktop / OpenPGP / GnuPG private key files to JtR. The code is committed to magnum-jumbo repository (https://github.com/magnumripper/magnum-jumbo.git). Usage ===== 1. Compile gpg2john by running "make gpg2john" in src/ folder. 2. Run gpg2john on PGP private key file(s). gpg2john supports .skr. .gpg and .asc files 3. Run john on the output of gpg2john. These instructions are also available in doc/README.gpg file. Benchmarks ========= ✗ ../run/john -fo:gpg -t # AMD X3 720 CPU (1 core) Benchmarking: OpenPGP / GnuPG Secret Key [32/64]... DONE Many salts: 6228 c/s real, 6228 c/s virtual Only one salt: 6212 c/s real, 6212 c/s virtua ✗ ../run/john -fo:gpg -t # AMD X3 720 CPU (3 cores) Benchmarking: OpenPGP / GnuPG Secret Key [32/64]... (3xOMP) DONE Many salts: 18432 c/s real, 6144 c/s virtual Only one salt: 18240 c/s real, 6141 c/s virtual For faster cracking (upto 10X), you can use the experimental gpg-opencl plug-in. This plug-in is based on, pgpry - PGP private key recovery, Copyright (C) 2010 Jonas Gehring magnum, I think that this plug-in is ready for inclusion in jumbo-7 release. -- Cheers, Dhiru
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