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Update documentation

pull/142/head
Jeffrey Walton 2016-02-29 09:33:33 -05:00
parent 850aed5bed
commit af40e81730
1 changed files with 21 additions and 8 deletions
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29
modarith.h
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@ -22,8 +22,12 @@ CRYPTOPP_DLL_TEMPLATE_CLASS AbstractEuclideanDomain<Integer>;
//! \class ModularArithmetic //! \class ModularArithmetic
//! \brief Ring of congruence classes modulo n //! \brief Ring of congruence classes modulo n
//! \note this implementation represents each congruence class as the smallest //! \details This implementation represents each congruence class as the smallest
//! non-negative integer in that class //! non-negative integer in that class.
//! \details Each instance of the class provides two temporary elements to
//! preserve intermediate calculations for future use. For example,
//! \ref ModularArithmetic::Multiply "Multiply" saves its last result in member
//! variable <tt>m_result1</tt>.
class CRYPTOPP_DLL ModularArithmetic : public AbstractRing<Integer> class CRYPTOPP_DLL ModularArithmetic : public AbstractRing<Integer>
{ {
public: public:
@ -50,6 +54,9 @@ public:
ModularArithmetic(BufferedTransformation &bt); // construct from BER encoded parameters ModularArithmetic(BufferedTransformation &bt); // construct from BER encoded parameters
//! \brief Clone a ModularArithmetic //! \brief Clone a ModularArithmetic
//! \returns pointer to a new ModularArithmetic
//! \details Clone effectively copy constructs a new ModularArithmetic. The caller is
//! responsible for deleting the pointer returned from this method.
virtual ModularArithmetic * Clone() const {return new ModularArithmetic(*this);} virtual ModularArithmetic * Clone() const {return new ModularArithmetic(*this);}
//! \brief Encodes in DER format //! \brief Encodes in DER format
@ -246,7 +253,6 @@ public:
protected: protected:
Integer m_modulus; Integer m_modulus;
mutable Integer m_result, m_result1; mutable Integer m_result, m_result1;
}; };
// const ModularArithmetic::RandomizationParameter ModularArithmetic::DefaultRandomizationParameter = 0 ; // const ModularArithmetic::RandomizationParameter ModularArithmetic::DefaultRandomizationParameter = 0 ;
@ -258,8 +264,19 @@ protected:
class CRYPTOPP_DLL MontgomeryRepresentation : public ModularArithmetic class CRYPTOPP_DLL MontgomeryRepresentation : public ModularArithmetic
{ {
public: public:
MontgomeryRepresentation(const Integer &modulus); // modulus must be odd #ifndef CRYPTOPP_MAINTAIN_BACKWARDS_COMPATIBILITY_562
virtual ~MontgomeryRepresentation() {}
#endif
//! \brief Construct a IsMontgomeryRepresentation
//! \param modulus congruence class modulus
//! \note The modulus must be odd.
MontgomeryRepresentation(const Integer &modulus);
//! \brief Clone a MontgomeryRepresentation
//! \returns pointer to a new MontgomeryRepresentation
//! \details Clone effectively copy constructs a new MontgomeryRepresentation. The caller is
//! responsible for deleting the pointer returned from this method.
virtual ModularArithmetic * Clone() const {return new MontgomeryRepresentation(*this);} virtual ModularArithmetic * Clone() const {return new MontgomeryRepresentation(*this);}
bool IsMontgomeryRepresentation() const {return true;} bool IsMontgomeryRepresentation() const {return true;}
@ -284,10 +301,6 @@ public:
void SimultaneousExponentiate(Element *results, const Element &base, const Integer *exponents, unsigned int exponentsCount) const void SimultaneousExponentiate(Element *results, const Element &base, const Integer *exponents, unsigned int exponentsCount) const
{AbstractRing<Integer>::SimultaneousExponentiate(results, base, exponents, exponentsCount);} {AbstractRing<Integer>::SimultaneousExponentiate(results, base, exponents, exponentsCount);}
#ifndef CRYPTOPP_MAINTAIN_BACKWARDS_COMPATIBILITY_562
virtual ~MontgomeryRepresentation() {}
#endif
private: private:
Integer m_u; Integer m_u;
mutable IntegerSecBlock m_workspace; mutable IntegerSecBlock m_workspace;