diff options
Diffstat (limited to 'CryptoPP/gf256.cpp')
| -rw-r--r-- | CryptoPP/gf256.cpp | 34 |
1 files changed, 0 insertions, 34 deletions
diff --git a/CryptoPP/gf256.cpp b/CryptoPP/gf256.cpp deleted file mode 100644 index 72026d1e1..000000000 --- a/CryptoPP/gf256.cpp +++ /dev/null @@ -1,34 +0,0 @@ -// gf256.cpp - written and placed in the public domain by Wei Dai - -#include "pch.h" -#include "gf256.h" - -NAMESPACE_BEGIN(CryptoPP) - -GF256::Element GF256::Multiply(Element a, Element b) const -{ - word result = 0, t = b; - - for (unsigned int i=0; i<8; i++) - { - result <<= 1; - if (result & 0x100) - result ^= m_modulus; - - t <<= 1; - if (t & 0x100) - result ^= a; - } - - return (GF256::Element) result; -} - -GF256::Element GF256::MultiplicativeInverse(Element a) const -{ - Element result = a; - for (int i=1; i<7; i++) - result = Multiply(Square(result), a); - return Square(result); -} - -NAMESPACE_END |