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Code Issues Releases Activity

correct padding for GOST 34.11

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orignal 2017-03-16 16:30:32 -04:00
parent 8b40354786
commit 289e9c809f
1 changed files with 8 additions and 2 deletions
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10
Gost.cpp
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@ -407,9 +407,15 @@ namespace crypto
s = m + s; s = m + s;
len -= 64; len -= 64;
} }
memset (m.buf, 0, 64);
memcpy (m.buf + 64, buf, l);
// stage 3 // stage 3
size_t padding = 64 - l;
if (padding)
{
memset (m.buf, 0, padding - 1);
m.buf[padding - 1] = 1;
}
memcpy (m.buf + padding, buf, l);
h = gN (N, h, m); h = gN (N, h, m);
N.Add (l*8); N.Add (l*8);
s = m + s; s = m + s;