1 files changed, 54 insertions, 0 deletions

diff --git a/lib/cryptopp/shacal2.h b/lib/cryptopp/shacal2.h
new file mode 100644
index 000000000..66c987fd7
--- /dev/null
+++ b/lib/cryptopp/shacal2.h
@@ -0,0 +1,54 @@
+#ifndef CRYPTOPP_SHACAL2_H
+#define CRYPTOPP_SHACAL2_H
+
+/** \file
+*/
+
+#include "seckey.h"
+#include "secblock.h"
+
+NAMESPACE_BEGIN(CryptoPP)
+
+//! _
+struct SHACAL2_Info : public FixedBlockSize<32>, public VariableKeyLength<16, 16, 64>
+{
+	static const char *StaticAlgorithmName() {return "SHACAL-2";}
+};
+
+/// <a href="http://www.weidai.com/scan-mirror/cs.html#SHACAL-2">SHACAL-2</a>
+class SHACAL2 : public SHACAL2_Info, public BlockCipherDocumentation
+{
+	class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<SHACAL2_Info>
+	{
+	public:
+		void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs &params);
+
+	protected:
+		FixedSizeSecBlock<word32, 64> m_key;
+
+		static const word32 K[64];
+	};
+
+	class CRYPTOPP_NO_VTABLE Enc : public Base
+	{
+	public:
+		void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
+	};
+
+	class CRYPTOPP_NO_VTABLE Dec : public Base
+	{
+	public:
+		void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
+	};
+
+public:
+	typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption;
+	typedef BlockCipherFinal<DECRYPTION, Dec> Decryption;
+};
+
+typedef SHACAL2::Encryption SHACAL2Encryption;
+typedef SHACAL2::Decryption SHACAL2Decryption;
+
+NAMESPACE_END
+
+#endif