diff options
| author | Vadim Dashevskiy <watcherhd@gmail.com> | 2012-05-15 10:38:20 +0000 |
|---|---|---|
| committer | Vadim Dashevskiy <watcherhd@gmail.com> | 2012-05-15 10:38:20 +0000 |
| commit | 48540940b6c28bb4378abfeb500ec45a625b37b6 (patch) | |
| tree | 2ef294c0763e802f91d868bdef4229b6868527de /plugins/CryptoPP/crypto/oaep.h | |
| parent | 5c350913f011e119127baeb32a6aedeb4f0d33bc (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/oaep.h')
| -rw-r--r-- | plugins/CryptoPP/crypto/oaep.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/plugins/CryptoPP/crypto/oaep.h b/plugins/CryptoPP/crypto/oaep.h new file mode 100644 index 0000000000..b40c30b9b5 --- /dev/null +++ b/plugins/CryptoPP/crypto/oaep.h @@ -0,0 +1,42 @@ +#ifndef CRYPTOPP_OAEP_H
+#define CRYPTOPP_OAEP_H
+
+#include "pubkey.h"
+#include "sha.h"
+
+NAMESPACE_BEGIN(CryptoPP)
+
+//! _
+class CRYPTOPP_DLL OAEP_Base : public PK_EncryptionMessageEncodingMethod
+{
+public:
+ bool ParameterSupported(const char *name) const {return strcmp(name, Name::EncodingParameters()) == 0;}
+ size_t MaxUnpaddedLength(size_t paddedLength) const;
+ void Pad(RandomNumberGenerator &rng, const byte *raw, size_t inputLength, byte *padded, size_t paddedLength, const NameValuePairs ¶meters) const;
+ DecodingResult Unpad(const byte *padded, size_t paddedLength, byte *raw, const NameValuePairs ¶meters) const;
+
+protected:
+ virtual unsigned int DigestSize() const =0;
+ virtual HashTransformation * NewHash() const =0;
+ virtual MaskGeneratingFunction * NewMGF() const =0;
+};
+
+//! <a href="http://www.weidai.com/scan-mirror/ca.html#cem_OAEP-MGF1">EME-OAEP</a>, for use with classes derived from TF_ES
+template <class H, class MGF=P1363_MGF1>
+class OAEP : public OAEP_Base, public EncryptionStandard
+{
+public:
+ static std::string CRYPTOPP_API StaticAlgorithmName() {return std::string("OAEP-") + MGF::StaticAlgorithmName() + "(" + H::StaticAlgorithmName() + ")";}
+ typedef OAEP<H, MGF> EncryptionMessageEncodingMethod;
+
+protected:
+ unsigned int DigestSize() const {return H::DIGESTSIZE;}
+ HashTransformation * NewHash() const {return new H;}
+ MaskGeneratingFunction * NewMGF() const {return new MGF;}
+};
+
+CRYPTOPP_DLL_TEMPLATE_CLASS OAEP<SHA>;
+
+NAMESPACE_END
+
+#endif
|