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correct padding for GOST 34.11

pull/832/head
orignal 8 years ago
parent
commit
289e9c809f
  1. 10
      Gost.cpp

10
Gost.cpp

@ -407,9 +407,15 @@ namespace crypto @@ -407,9 +407,15 @@ namespace crypto
s = m + s;
len -= 64;
}
memset (m.buf, 0, 64);
memcpy (m.buf + 64, buf, l);
// 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);
N.Add (l*8);
s = m + s;

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