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https://github.com/holub/mame
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123 lines
2.5 KiB
C++
123 lines
2.5 KiB
C++
// Crypto/MyAes.h
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#ifndef ZIP7_INC_CRYPTO_MY_AES_H
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#define ZIP7_INC_CRYPTO_MY_AES_H
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#include "../../../C/Aes.h"
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#include "../../Common/MyBuffer2.h"
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#include "../../Common/MyCom.h"
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#include "../ICoder.h"
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namespace NCrypto {
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#ifdef Z7_EXTRACT_ONLY
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#define Z7_IFACEN_IAesCoderSetFunctions(x)
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#else
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#define Z7_IFACEN_IAesCoderSetFunctions(x) \
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virtual bool SetFunctions(UInt32 algo) x
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#endif
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class CAesCoder:
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public ICompressFilter,
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public ICryptoProperties,
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#ifndef Z7_EXTRACT_ONLY
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public ICompressSetCoderProperties,
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#endif
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public CMyUnknownImp
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{
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Z7_COM_QI_BEGIN2(ICompressFilter)
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Z7_COM_QI_ENTRY(ICryptoProperties)
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#ifndef Z7_EXTRACT_ONLY
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Z7_COM_QI_ENTRY(ICompressSetCoderProperties)
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#endif
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Z7_COM_QI_END
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Z7_COM_ADDREF_RELEASE
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public:
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Z7_IFACE_COM7_IMP_NONFINAL(ICompressFilter)
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Z7_IFACE_COM7_IMP(ICryptoProperties)
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private:
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#ifndef Z7_EXTRACT_ONLY
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Z7_IFACE_COM7_IMP(ICompressSetCoderProperties)
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#endif
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protected:
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bool _keyIsSet;
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// bool _encodeMode;
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// bool _ctrMode;
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// unsigned _offset;
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unsigned _keySize;
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unsigned _ctrPos; // we need _ctrPos here for Init() / SetInitVector()
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AES_CODE_FUNC _codeFunc;
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AES_SET_KEY_FUNC _setKeyFunc;
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private:
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// UInt32 _aes[AES_NUM_IVMRK_WORDS + 3];
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CAlignedBuffer1 _aes;
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Byte _iv[AES_BLOCK_SIZE];
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// UInt32 *Aes() { return _aes + _offset; }
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protected:
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UInt32 *Aes() { return (UInt32 *)(void *)(Byte *)_aes; }
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Z7_IFACE_PURE(IAesCoderSetFunctions)
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public:
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CAesCoder(
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// bool encodeMode,
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unsigned keySize
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// , bool ctrMode
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);
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virtual ~CAesCoder() {} // we need virtual destructor for derived classes
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void SetKeySize(unsigned size) { _keySize = size; }
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};
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#ifndef Z7_EXTRACT_ONLY
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struct CAesCbcEncoder: public CAesCoder
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{
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CAesCbcEncoder(unsigned keySize = 0): CAesCoder(keySize)
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{
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_setKeyFunc = Aes_SetKey_Enc;
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_codeFunc = g_AesCbc_Encode;
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}
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Z7_IFACE_IMP(IAesCoderSetFunctions)
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};
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#endif
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struct CAesCbcDecoder: public CAesCoder
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{
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CAesCbcDecoder(unsigned keySize = 0): CAesCoder(keySize)
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{
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_setKeyFunc = Aes_SetKey_Dec;
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_codeFunc = g_AesCbc_Decode;
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}
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Z7_IFACE_IMP(IAesCoderSetFunctions)
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};
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#ifndef Z7_SFX
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struct CAesCtrCoder: public CAesCoder
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{
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private:
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// unsigned _ctrPos;
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// Z7_IFACE_COM7_IMP(ICompressFilter)
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// Z7_COM7F_IMP(Init())
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Z7_COM7F_IMP2(UInt32, Filter(Byte *data, UInt32 size))
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public:
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CAesCtrCoder(unsigned keySize = 0): CAesCoder(keySize)
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{
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_ctrPos = 0;
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_setKeyFunc = Aes_SetKey_Enc;
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_codeFunc = g_AesCtr_Code;
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}
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Z7_IFACE_IMP(IAesCoderSetFunctions)
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};
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#endif
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}
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#endif
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