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author | Alexander Harkness <bearbin@gmail.com> | 2013-11-24 15:21:13 +0100 |
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committer | Alexander Harkness <bearbin@gmail.com> | 2013-11-24 15:21:13 +0100 |
commit | 3438e5d3ddf8444f0e31009ffbe8237ef3752c22 (patch) | |
tree | 7c2f76d5e9281c130e60fb932c4dda89a49863b6 /CryptoPP/pssr.h | |
parent | Moved source to src (diff) | |
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Diffstat (limited to 'CryptoPP/pssr.h')
-rw-r--r-- | CryptoPP/pssr.h | 66 |
1 files changed, 0 insertions, 66 deletions
diff --git a/CryptoPP/pssr.h b/CryptoPP/pssr.h deleted file mode 100644 index 6ec6936e5..000000000 --- a/CryptoPP/pssr.h +++ /dev/null @@ -1,66 +0,0 @@ -#ifndef CRYPTOPP_PSSR_H -#define CRYPTOPP_PSSR_H - -#include "pubkey.h" -#include "emsa2.h" - -#ifdef CRYPTOPP_IS_DLL -#include "sha.h" -#endif - -NAMESPACE_BEGIN(CryptoPP) - -class CRYPTOPP_DLL PSSR_MEM_Base : public PK_RecoverableSignatureMessageEncodingMethod -{ - virtual bool AllowRecovery() const =0; - virtual size_t SaltLen(size_t hashLen) const =0; - virtual size_t MinPadLen(size_t hashLen) const =0; - virtual const MaskGeneratingFunction & GetMGF() const =0; - -public: - size_t MinRepresentativeBitLength(size_t hashIdentifierLength, size_t digestLength) const; - size_t MaxRecoverableLength(size_t representativeBitLength, size_t hashIdentifierLength, size_t digestLength) const; - bool IsProbabilistic() const; - bool AllowNonrecoverablePart() const; - bool RecoverablePartFirst() const; - void ComputeMessageRepresentative(RandomNumberGenerator &rng, - const byte *recoverableMessage, size_t recoverableMessageLength, - HashTransformation &hash, HashIdentifier hashIdentifier, bool messageEmpty, - byte *representative, size_t representativeBitLength) const; - DecodingResult RecoverMessageFromRepresentative( - HashTransformation &hash, HashIdentifier hashIdentifier, bool messageEmpty, - byte *representative, size_t representativeBitLength, - byte *recoverableMessage) const; -}; - -template <bool USE_HASH_ID> class PSSR_MEM_BaseWithHashId; -template<> class PSSR_MEM_BaseWithHashId<true> : public EMSA2HashIdLookup<PSSR_MEM_Base> {}; -template<> class PSSR_MEM_BaseWithHashId<false> : public PSSR_MEM_Base {}; - -template <bool ALLOW_RECOVERY, class MGF=P1363_MGF1, int SALT_LEN=-1, int MIN_PAD_LEN=0, bool USE_HASH_ID=false> -class PSSR_MEM : public PSSR_MEM_BaseWithHashId<USE_HASH_ID> -{ - virtual bool AllowRecovery() const {return ALLOW_RECOVERY;} - virtual size_t SaltLen(size_t hashLen) const {return SALT_LEN < 0 ? hashLen : SALT_LEN;} - virtual size_t MinPadLen(size_t hashLen) const {return MIN_PAD_LEN < 0 ? hashLen : MIN_PAD_LEN;} - virtual const MaskGeneratingFunction & GetMGF() const {static MGF mgf; return mgf;} - -public: - static std::string CRYPTOPP_API StaticAlgorithmName() {return std::string(ALLOW_RECOVERY ? "PSSR-" : "PSS-") + MGF::StaticAlgorithmName();} -}; - -//! <a href="http://www.weidai.com/scan-mirror/sig.html#sem_PSSR-MGF1">PSSR-MGF1</a> -struct PSSR : public SignatureStandard -{ - typedef PSSR_MEM<true> SignatureMessageEncodingMethod; -}; - -//! <a href="http://www.weidai.com/scan-mirror/sig.html#sem_PSS-MGF1">PSS-MGF1</a> -struct PSS : public SignatureStandard -{ - typedef PSSR_MEM<false> SignatureMessageEncodingMethod; -}; - -NAMESPACE_END - -#endif |