Date: Thu, 21 May 2015 00:12:43 +0300 From: Aleksey Cherepanov <lyosha@...nwall.com> To: john-dev@...ts.openwall.com Subject: format tags and gost 2012 aka stribog We met GOST-34.11-2012 hashes in the PHDays Hash Runner 2015. Dhiru Kholia added 2 formats for them (stribog-256 and stribog-512) because the hashes use different length of block and the sizes of ciphertexts differ too. Dhiru used $stribog$ tag and distinguished hashes between the formats by length. There were no split() method that adds the tag while we needed it to make --show=types to work. So I added the split() method and also changed tags to $stribog-256$ and $stribog-512$ . It seemed good for the contest environment. I am not sure what approach is the best for real environment because both of them have pros and contras. Any suggestions? Also name stribog seems wrong: stribog is the name of algo, but it may be friendlier to users to call it "GOST...". The tag may follow the name. So $gost12$ ? What important properties should format tags exhibit in general? Thanks! -- Regards, Aleksey Cherepanov
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