diff options
| author | Jeffrey Walton <noloader@gmail.com> | 2015-11-05 01:59:46 -0500 |
|---|---|---|
| committer | Jeffrey Walton <noloader@gmail.com> | 2015-11-05 01:59:46 -0500 |
| commit | 48809d4e85c125814425c621d8d0d89f95405924 (patch) | |
| tree | 1010fd16c4b1199f3d27dd726dda241a2bd29f83 /gf256.h | |
| parent | 025337a94aceb75d188149db70c2094673772816 (diff) | |
| download | cryptopp-git-48809d4e85c125814425c621d8d0d89f95405924.tar.gz | |
CRYPTOPP 5.6.3 RC6 checkin
Diffstat (limited to 'gf256.h')
| -rw-r--r-- | gf256.h | 134 |
1 files changed, 67 insertions, 67 deletions
@@ -1,67 +1,67 @@ -#ifndef CRYPTOPP_GF256_H -#define CRYPTOPP_GF256_H - -#include "cryptlib.h" -#include "misc.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 - {CRYPTOPP_UNUSED(ignored);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 - {CRYPTOPP_UNUSED(a);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 +#ifndef CRYPTOPP_GF256_H
+#define CRYPTOPP_GF256_H
+
+#include "cryptlib.h"
+#include "misc.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
+ {CRYPTOPP_UNUSED(ignored); 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
+ {CRYPTOPP_UNUSED(a); 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
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