1 #ifndef CRYPTOPP_MODEXPPC_H
2 #define CRYPTOPP_MODEXPPC_H
3 
4 #include "cryptlib.h"
5 #include "modarith.h"
6 #include "integer.h"
7 #include "algebra.h"
8 #include "eprecomp.h"
9 #include "smartptr.h"
10 #include "pubkey.h"
11 
12 #if CRYPTOPP_MSC_VERSION
13 # pragma warning(push)
14 # pragma warning(disable: 4231 4275)
15 #endif
16 
17 NAMESPACE_BEGIN(CryptoPP)
18 
19 CRYPTOPP_DLL_TEMPLATE_CLASS DL_FixedBasePrecomputationImpl<Integer>;
20 
21 class ModExpPrecomputation : public DL_GroupPrecomputation<Integer>
22 {
23 public:
~ModExpPrecomputation()24 	virtual ~ModExpPrecomputation() {}
25 
26 	// DL_GroupPrecomputation
NeedConversions()27 	bool NeedConversions() const {return true;}
ConvertIn(const Element & v)28 	Element ConvertIn(const Element &v) const {return m_mr->ConvertIn(v);}
ConvertOut(const Element & v)29 	virtual Element ConvertOut(const Element &v) const {return m_mr->ConvertOut(v);}
GetGroup()30 	const AbstractGroup<Element> & GetGroup() const {return m_mr->MultiplicativeGroup();}
BERDecodeElement(BufferedTransformation & bt)31 	Element BERDecodeElement(BufferedTransformation &bt) const {return Integer(bt);}
DEREncodeElement(BufferedTransformation & bt,const Element & v)32 	void DEREncodeElement(BufferedTransformation &bt, const Element &v) const {v.DEREncode(bt);}
33 
34 	// non-inherited
SetModulus(const Integer & v)35 	void SetModulus(const Integer &v) {m_mr.reset(new MontgomeryRepresentation(v));}
GetModulus()36 	const Integer & GetModulus() const {return m_mr->GetModulus();}
37 
38 private:
39 	value_ptr<MontgomeryRepresentation> m_mr;
40 };
41 
42 NAMESPACE_END
43 
44 #if CRYPTOPP_MSC_VERSION
45 # pragma warning(pop)
46 #endif
47 
48 #endif
49