1 files changed, 25 insertions, 0 deletions
diff --git a/oaep.h b/oaep.h
new file mode 100644
index 0000000..96baaa1
--- /dev/null
+++ b/oaep.h
@@ -0,0 +1,25 @@
+#ifndef CRYPTOPP_OAEP_H
+#define CRYPTOPP_OAEP_H
+
+#include "pubkey.h"
+
+NAMESPACE_BEGIN(CryptoPP)
+
+extern byte OAEP_P_DEFAULT[];	// defined in misc.cpp
+
+/// <a href="http://www.weidai.com/scan-mirror/ca.html#cem_OAEP-MGF1">EME-OAEP</a>, for use with RSAES
+template <class H, class MGF=P1363_MGF1<H>, byte *P=OAEP_P_DEFAULT, unsigned int PLen=0>
+class OAEP : public PK_PaddingAlgorithm, public EncryptionStandard
+{
+public:
+	static std::string StaticAlgorithmName() {return "OAEP-" + MGF::StaticAlgorithmName();}
+	typedef OAEP<H, MGF, P, PLen> EncryptionPaddingAlgorithm;
+
+	unsigned int MaxUnpaddedLength(unsigned int paddedLength) const;
+	void Pad(RandomNumberGenerator &rng, const byte *raw, unsigned int inputLength, byte *padded, unsigned int paddedLength) const;
+	DecodingResult Unpad(const byte *padded, unsigned int paddedLength, byte *raw) const;
+};
+
+NAMESPACE_END
+
+#endif