1 files changed, 38 insertions, 0 deletions
diff --git a/plugins/CryptoPP/crypto/md5mac.h b/plugins/CryptoPP/crypto/md5mac.h
new file mode 100644
index 0000000000..bd17e70ba2
--- /dev/null
+++ b/plugins/CryptoPP/crypto/md5mac.h
@@ -0,0 +1,38 @@
+#ifndef CRYPTOPP_MD5MAC_H
+#define CRYPTOPP_MD5MAC_H
+
+/** \file
+*/
+
+#include "seckey.h"
+#include "iterhash.h"
+
+NAMESPACE_BEGIN(CryptoPP)
+
+class CRYPTOPP_NO_VTABLE MD5MAC_Base : public FixedKeyLength<16>, public IteratedHash<word32, LittleEndian, 64, MessageAuthenticationCode>
+{
+public:
+	static std::string StaticAlgorithmName() {return "MD5-MAC";}
+	CRYPTOPP_CONSTANT(DIGESTSIZE = 16)
+
+	MD5MAC_Base() {SetStateSize(DIGESTSIZE);}
+
+	void UncheckedSetKey(const byte *userKey, unsigned int keylength, const NameValuePairs &params);
+	void TruncatedFinal(byte *mac, size_t size);
+	unsigned int DigestSize() const {return DIGESTSIZE;}
+
+protected:
+	static void Transform (word32 *buf, const word32 *in, const word32 *key);
+	void HashEndianCorrectedBlock(const word32 *data) {Transform(m_digest, data, m_key+4);}
+	void Init();
+
+	static const word32 T[12];
+	FixedSizeSecBlock<word32, 12> m_key;
+};
+
+//! <a href="http://www.weidai.com/scan-mirror/mac.html#MD5-MAC">MD5-MAC</a>
+DOCUMENTED_TYPEDEF(MessageAuthenticationCodeFinal<MD5MAC_Base>, MD5MAC)
+
+NAMESPACE_END
+
+#endif