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diff --git a/CryptoPP/tea.h b/CryptoPP/tea.h
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+#ifndef CRYPTOPP_TEA_H
+#define CRYPTOPP_TEA_H
+
+/** \file
+*/
+
+#include "seckey.h"
+#include "secblock.h"
+
+NAMESPACE_BEGIN(CryptoPP)
+
+//! _
+struct TEA_Info : public FixedBlockSize<8>, public FixedKeyLength<16>, public VariableRounds<32>
+{
+ static const char *StaticAlgorithmName() {return "TEA";}
+};
+
+/// <a href="http://www.weidai.com/scan-mirror/cs.html#TEA">TEA</a>
+class TEA : public TEA_Info, public BlockCipherDocumentation
+{
+ class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<TEA_Info>
+ {
+ public:
+ void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs &params);
+
+ protected:
+ FixedSizeSecBlock<word32, 4> m_k;
+ word32 m_limit;
+ };
+
+ 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 TEA::Encryption TEAEncryption;
+typedef TEA::Decryption TEADecryption;
+
+//! _
+struct XTEA_Info : public FixedBlockSize<8>, public FixedKeyLength<16>, public VariableRounds<32>
+{
+ static const char *StaticAlgorithmName() {return "XTEA";}
+};
+
+/// <a href="http://www.weidai.com/scan-mirror/cs.html#TEA">XTEA</a>
+class XTEA : public XTEA_Info, public BlockCipherDocumentation
+{
+ class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<XTEA_Info>
+ {
+ public:
+ void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs &params);
+
+ protected:
+ FixedSizeSecBlock<word32, 4> m_k;
+ word32 m_limit;
+ };
+
+ 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;
+};
+
+//! _
+struct BTEA_Info : public FixedKeyLength<16>
+{
+ static const char *StaticAlgorithmName() {return "BTEA";}
+};
+
+//! <a href="http://www.weidai.com/scan-mirror/cs.html#TEA">corrected Block TEA</a> (as described in "xxtea").
+/*! This class hasn't been tested yet. */
+class BTEA : public BTEA_Info, public BlockCipherDocumentation
+{
+ class CRYPTOPP_NO_VTABLE Base : public AlgorithmImpl<SimpleKeyingInterfaceImpl<BlockCipher, BTEA_Info>, BTEA_Info>, public BTEA_Info
+ {
+ public:
+ void UncheckedSetKey(const byte *key, unsigned int length, const NameValuePairs &params)
+ {
+ m_blockSize = params.GetIntValueWithDefault("BlockSize", 60*4);
+ GetUserKey(BIG_ENDIAN_ORDER, m_k.begin(), 4, key, KEYLENGTH);
+ }
+
+ unsigned int BlockSize() const {return m_blockSize;}
+
+ protected:
+ FixedSizeSecBlock<word32, 4> m_k;
+ unsigned int m_blockSize;
+ };
+
+ 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;
+};
+
+NAMESPACE_END
+
+#endif