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Merge pull request #2246 from philsmd/master

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fixes #2244: avoid false negatives by allowing a more flexible zlib header
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Jens Steube 2019-12-11 19:01:15 +01:00 committed by GitHub
commit a4b39b7b9c
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2 changed files with 4 additions and 2 deletions
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4
OpenCL/m21800-pure.cl
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@ -513,7 +513,9 @@ KERNEL_FQ void m21800_comp (KERN_ATTR_TMPS_ESALT (electrum_tmp_t, electrum_t))
// early reject
if ((buf[0] & 0x0007ffff) != 0x00059c78) return;
u32 zlib_header = buf[0] & 0x0007ffff;
if ((zlib_header != 0x00049c78) && (zlib_header != 0x00059c78)) return;
buf[1] ^= iv[1];
buf[2] ^= iv[2];

2
tools/test_modules/m21800.pm
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@ -168,7 +168,7 @@ sub module_generate_hash
my $zlib_rate = ord (substr ($compressed_data, 2, 1)) & 0x07;
if ($zlib_rate != 0x05)
if (($zlib_rate != 0x04) && ($zlib_rate != 0x05))
{
next;
}