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| author | watcherhd <watcherhd@e753b5eb-9565-29b2-b5c5-2cc6f99dfbcb> | 2011-04-21 14:14:52 +0000 |
|---|---|---|
| committer | watcherhd <watcherhd@e753b5eb-9565-29b2-b5c5-2cc6f99dfbcb> | 2011-04-21 14:14:52 +0000 |
| commit | cb4a46e7fbe62d788e66ed6121c717a2d22a4d7c (patch) | |
| tree | 30df260fdc5a1b5a7049c2f8cac8b7ef17513d6d /cryptopp/crypto/emsa2.h | |
| parent | 19b6f534d2e784a1e120bf52c4aa07004798f473 (diff) | |
svn.miranda.im is moving to a new home!
git-svn-id: http://miranda-plugins.googlecode.com/svn/trunk@7 e753b5eb-9565-29b2-b5c5-2cc6f99dfbcb
Diffstat (limited to 'cryptopp/crypto/emsa2.h')
| -rw-r--r-- | cryptopp/crypto/emsa2.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/cryptopp/crypto/emsa2.h b/cryptopp/crypto/emsa2.h new file mode 100644 index 0000000..911bd97 --- /dev/null +++ b/cryptopp/crypto/emsa2.h @@ -0,0 +1,86 @@ +#ifndef CRYPTOPP_EMSA2_H
+#define CRYPTOPP_EMSA2_H
+
+/** \file
+ This file contains various padding schemes for public key algorithms.
+*/
+
+#include "cryptlib.h"
+#include "pubkey.h"
+
+#ifdef CRYPTOPP_IS_DLL
+#include "sha.h"
+#endif
+
+NAMESPACE_BEGIN(CryptoPP)
+
+template <class H> class EMSA2HashId
+{
+public:
+ static const byte id;
+};
+
+template <class BASE>
+class EMSA2HashIdLookup : public BASE
+{
+public:
+ struct HashIdentifierLookup
+ {
+ template <class H> struct HashIdentifierLookup2
+ {
+ static HashIdentifier Lookup()
+ {
+ return HashIdentifier(&EMSA2HashId<H>::id, 1);
+ }
+ };
+ };
+};
+
+// EMSA2HashId can be instantiated with the following classes.
+class SHA1;
+class RIPEMD160;
+class RIPEMD128;
+class SHA256;
+class SHA384;
+class SHA512;
+class Whirlpool;
+class SHA224;
+// end of list
+
+#ifdef CRYPTOPP_IS_DLL
+CRYPTOPP_DLL_TEMPLATE_CLASS EMSA2HashId<SHA1>;
+CRYPTOPP_DLL_TEMPLATE_CLASS EMSA2HashId<SHA224>;
+CRYPTOPP_DLL_TEMPLATE_CLASS EMSA2HashId<SHA256>;
+CRYPTOPP_DLL_TEMPLATE_CLASS EMSA2HashId<SHA384>;
+CRYPTOPP_DLL_TEMPLATE_CLASS EMSA2HashId<SHA512>;
+#endif
+
+//! _
+class CRYPTOPP_DLL EMSA2Pad : public EMSA2HashIdLookup<PK_DeterministicSignatureMessageEncodingMethod>
+{
+public:
+ static const char * CRYPTOPP_API StaticAlgorithmName() {return "EMSA2";}
+
+ size_t MinRepresentativeBitLength(size_t hashIdentifierLength, size_t digestLength) const
+ {return 8*digestLength + 31;}
+
+ void ComputeMessageRepresentative(RandomNumberGenerator &rng,
+ const byte *recoverableMessage, size_t recoverableMessageLength,
+ HashTransformation &hash, HashIdentifier hashIdentifier, bool messageEmpty,
+ byte *representative, size_t representativeBitLength) const;
+};
+
+//! EMSA2, for use with RWSS and RSA_ISO
+/*! Only the following hash functions are supported by this signature standard:
+ \dontinclude emsa2.h
+ \skip EMSA2HashId can be instantiated
+ \until end of list
+*/
+struct P1363_EMSA2 : public SignatureStandard
+{
+ typedef EMSA2Pad SignatureMessageEncodingMethod;
+};
+
+NAMESPACE_END
+
+#endif
|