diff options
author | Micah Anderson <micah@riseup.net> | 2013-08-22 16:39:52 -0400 |
---|---|---|
committer | Micah Anderson <micah@riseup.net> | 2013-08-22 16:57:38 -0400 |
commit | 6d35b188b668c5007409e63a15e8340ed34dcfb8 (patch) | |
tree | c9dd25f3675b3b6f9b29b0786057f8a4d377bc2b /src-cryptopp/oaep.h | |
parent | 86a1089dc6694f58d0f3356bdf9c8fe4061421f5 (diff) | |
parent | 5e60e0e3af85f22aa0afe8bf0ecf85619afacfeb (diff) |
Merge tag 'upstream/0.6.0.12'
Upstream version 0.6.0.12
Diffstat (limited to 'src-cryptopp/oaep.h')
-rw-r--r-- | src-cryptopp/oaep.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/src-cryptopp/oaep.h b/src-cryptopp/oaep.h new file mode 100644 index 0000000..4bf6b0d --- /dev/null +++ b/src-cryptopp/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 |