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authorMicah Anderson <micah@riseup.net>2013-08-22 16:39:52 -0400
committerMicah Anderson <micah@riseup.net>2013-08-22 16:39:52 -0400
commit5e60e0e3af85f22aa0afe8bf0ecf85619afacfeb (patch)
tree6a91a3de86fa8de0b4167cc947ab72991bf8da31 /src-cryptopp/pkcspad.h
parent30e9097985656920f01a72efc1088caa2b8d41b3 (diff)
Imported Upstream version 0.6.0.12upstream/0.6.0.12
Diffstat (limited to 'src-cryptopp/pkcspad.h')
-rw-r--r--src-cryptopp/pkcspad.h94
1 files changed, 94 insertions, 0 deletions
diff --git a/src-cryptopp/pkcspad.h b/src-cryptopp/pkcspad.h
new file mode 100644
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+++ b/src-cryptopp/pkcspad.h
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+#ifndef CRYPTOPP_PKCSPAD_H
+#define CRYPTOPP_PKCSPAD_H
+
+#include "cryptlib.h"
+#include "pubkey.h"
+
+#ifdef CRYPTOPP_IS_DLL
+#include "sha.h"
+#endif
+
+NAMESPACE_BEGIN(CryptoPP)
+
+//! <a href="http://www.weidai.com/scan-mirror/ca.html#cem_PKCS1-1.5">EME-PKCS1-v1_5</a>
+class PKCS_EncryptionPaddingScheme : public PK_EncryptionMessageEncodingMethod
+{
+public:
+ static const char * StaticAlgorithmName() {return "EME-PKCS1-v1_5";}
+
+ size_t MaxUnpaddedLength(size_t paddedLength) const;
+ void Pad(RandomNumberGenerator &rng, const byte *raw, size_t inputLength, byte *padded, size_t paddedLength, const NameValuePairs &parameters) const;
+ DecodingResult Unpad(const byte *padded, size_t paddedLength, byte *raw, const NameValuePairs &parameters) const;
+};
+
+template <class H> class PKCS_DigestDecoration
+{
+public:
+ static const byte decoration[];
+ static const unsigned int length;
+};
+
+// PKCS_DigestDecoration can be instantiated with the following
+// classes as specified in PKCS#1 v2.0 and P1363a
+class SHA1;
+class RIPEMD160;
+class Tiger;
+class SHA224;
+class SHA256;
+class SHA384;
+class SHA512;
+namespace Weak1 {
+class MD2;
+class MD5;
+}
+// end of list
+
+#ifdef CRYPTOPP_IS_DLL
+CRYPTOPP_DLL_TEMPLATE_CLASS PKCS_DigestDecoration<SHA1>;
+CRYPTOPP_DLL_TEMPLATE_CLASS PKCS_DigestDecoration<SHA224>;
+CRYPTOPP_DLL_TEMPLATE_CLASS PKCS_DigestDecoration<SHA256>;
+CRYPTOPP_DLL_TEMPLATE_CLASS PKCS_DigestDecoration<SHA384>;
+CRYPTOPP_DLL_TEMPLATE_CLASS PKCS_DigestDecoration<SHA512>;
+#endif
+
+//! <a href="http://www.weidai.com/scan-mirror/sig.html#sem_PKCS1-1.5">EMSA-PKCS1-v1_5</a>
+class CRYPTOPP_DLL PKCS1v15_SignatureMessageEncodingMethod : public PK_DeterministicSignatureMessageEncodingMethod
+{
+public:
+ static const char * CRYPTOPP_API StaticAlgorithmName() {return "EMSA-PKCS1-v1_5";}
+
+ size_t MinRepresentativeBitLength(size_t hashIdentifierSize, size_t digestSize) const
+ {return 8 * (digestSize + hashIdentifierSize + 10);}
+
+ void ComputeMessageRepresentative(RandomNumberGenerator &rng,
+ const byte *recoverableMessage, size_t recoverableMessageLength,
+ HashTransformation &hash, HashIdentifier hashIdentifier, bool messageEmpty,
+ byte *representative, size_t representativeBitLength) const;
+
+ struct HashIdentifierLookup
+ {
+ template <class H> struct HashIdentifierLookup2
+ {
+ static HashIdentifier Lookup()
+ {
+ return HashIdentifier(PKCS_DigestDecoration<H>::decoration, PKCS_DigestDecoration<H>::length);
+ }
+ };
+ };
+};
+
+//! PKCS #1 version 1.5, for use with RSAES and RSASS
+/*! Only the following hash functions are supported by this signature standard:
+ \dontinclude pkcspad.h
+ \skip can be instantiated
+ \until end of list
+*/
+struct PKCS1v15 : public SignatureStandard, public EncryptionStandard
+{
+ typedef PKCS_EncryptionPaddingScheme EncryptionMessageEncodingMethod;
+ typedef PKCS1v15_SignatureMessageEncodingMethod SignatureMessageEncodingMethod;
+};
+
+NAMESPACE_END
+
+#endif