diff options
| author | watcherhd <watcherhd@e753b5eb-9565-29b2-b5c5-2cc6f99dfbcb> | 2011-11-26 14:19:43 +0000 |
|---|---|---|
| committer | watcherhd <watcherhd@e753b5eb-9565-29b2-b5c5-2cc6f99dfbcb> | 2011-11-26 14:19:43 +0000 |
| commit | 7aff1e4cb053394db57c2814d5fe1e6493e0cc75 (patch) | |
| tree | c8585e44049b37e4da152495c954242204c2c38d /CryptoPP/crypto/gf256.h | |
| parent | 6f3d69266933ef120d229e0daf2da164b77214d0 (diff) | |
Project folders rename part 2
git-svn-id: http://miranda-plugins.googlecode.com/svn/trunk@214 e753b5eb-9565-29b2-b5c5-2cc6f99dfbcb
Diffstat (limited to 'CryptoPP/crypto/gf256.h')
| -rw-r--r-- | CryptoPP/crypto/gf256.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/CryptoPP/crypto/gf256.h b/CryptoPP/crypto/gf256.h new file mode 100644 index 0000000..24a86f5 --- /dev/null +++ b/CryptoPP/crypto/gf256.h @@ -0,0 +1,66 @@ +#ifndef CRYPTOPP_GF256_H
+#define CRYPTOPP_GF256_H
+
+#include "cryptlib.h"
+
+NAMESPACE_BEGIN(CryptoPP)
+
+//! GF(256) with polynomial basis
+class GF256
+{
+public:
+ typedef byte Element;
+ typedef int RandomizationParameter;
+
+ GF256(byte modulus) : m_modulus(modulus) {}
+
+ Element RandomElement(RandomNumberGenerator &rng, int ignored = 0) const
+ {return rng.GenerateByte();}
+
+ bool Equal(Element a, Element b) const
+ {return a==b;}
+
+ Element Zero() const
+ {return 0;}
+
+ Element Add(Element a, Element b) const
+ {return a^b;}
+
+ Element& Accumulate(Element &a, Element b) const
+ {return a^=b;}
+
+ Element Inverse(Element a) const
+ {return a;}
+
+ Element Subtract(Element a, Element b) const
+ {return a^b;}
+
+ Element& Reduce(Element &a, Element b) const
+ {return a^=b;}
+
+ Element Double(Element a) const
+ {return 0;}
+
+ Element One() const
+ {return 1;}
+
+ Element Multiply(Element a, Element b) const;
+
+ Element Square(Element a) const
+ {return Multiply(a, a);}
+
+ bool IsUnit(Element a) const
+ {return a != 0;}
+
+ Element MultiplicativeInverse(Element a) const;
+
+ Element Divide(Element a, Element b) const
+ {return Multiply(a, MultiplicativeInverse(b));}
+
+private:
+ word m_modulus;
+};
+
+NAMESPACE_END
+
+#endif
|