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authorVadim Dashevskiy <watcherhd@gmail.com>2012-05-15 10:38:20 +0000
committerVadim Dashevskiy <watcherhd@gmail.com>2012-05-15 10:38:20 +0000
commit48540940b6c28bb4378abfeb500ec45a625b37b6 (patch)
tree2ef294c0763e802f91d868bdef4229b6868527de /plugins/CryptoPP/crypto/modexppc.h
parent5c350913f011e119127baeb32a6aedeb4f0d33bc (diff)
initial commit
git-svn-id: http://svn.miranda-ng.org/main/trunk@2 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
Diffstat (limited to 'plugins/CryptoPP/crypto/modexppc.h')
-rw-r--r--plugins/CryptoPP/crypto/modexppc.h34
1 files changed, 34 insertions, 0 deletions
diff --git a/plugins/CryptoPP/crypto/modexppc.h b/plugins/CryptoPP/crypto/modexppc.h
new file mode 100644
index 0000000000..a9df756497
--- /dev/null
+++ b/plugins/CryptoPP/crypto/modexppc.h
@@ -0,0 +1,34 @@
+#ifndef CRYPTOPP_MODEXPPC_H
+#define CRYPTOPP_MODEXPPC_H
+
+#include "modarith.h"
+#include "eprecomp.h"
+#include "smartptr.h"
+#include "pubkey.h"
+
+NAMESPACE_BEGIN(CryptoPP)
+
+CRYPTOPP_DLL_TEMPLATE_CLASS DL_FixedBasePrecomputationImpl<Integer>;
+
+class ModExpPrecomputation : public DL_GroupPrecomputation<Integer>
+{
+public:
+ // DL_GroupPrecomputation
+ bool NeedConversions() const {return true;}
+ Element ConvertIn(const Element &v) const {return m_mr->ConvertIn(v);}
+ virtual Element ConvertOut(const Element &v) const {return m_mr->ConvertOut(v);}
+ const AbstractGroup<Element> & GetGroup() const {return m_mr->MultiplicativeGroup();}
+ Element BERDecodeElement(BufferedTransformation &bt) const {return Integer(bt);}
+ void DEREncodeElement(BufferedTransformation &bt, const Element &v) const {v.DEREncode(bt);}
+
+ // non-inherited
+ void SetModulus(const Integer &v) {m_mr.reset(new MontgomeryRepresentation(v));}
+ const Integer & GetModulus() const {return m_mr->GetModulus();}
+
+private:
+ value_ptr<MontgomeryRepresentation> m_mr;
+};
+
+NAMESPACE_END
+
+#endif