diff options
Diffstat (limited to 'src/libs/7zip/unix/CPP/7zip/Crypto/7zAes.h')
-rw-r--r-- | src/libs/7zip/unix/CPP/7zip/Crypto/7zAes.h | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/src/libs/7zip/unix/CPP/7zip/Crypto/7zAes.h b/src/libs/7zip/unix/CPP/7zip/Crypto/7zAes.h new file mode 100644 index 000000000..79d723fae --- /dev/null +++ b/src/libs/7zip/unix/CPP/7zip/Crypto/7zAes.h @@ -0,0 +1,117 @@ +// 7zAes.h + +#ifndef __CRYPTO_7Z_AES_H +#define __CRYPTO_7Z_AES_H + +#include "Common/Buffer.h" +#include "Common/MyCom.h" +#include "Common/MyVector.h" + +#include "../ICoder.h" +#include "../IPassword.h" + +namespace NCrypto { +namespace NSevenZ { + +const int kKeySize = 32; + +class CKeyInfo +{ +public: + int NumCyclesPower; + UInt32 SaltSize; + Byte Salt[16]; + CByteBuffer Password; + Byte Key[kKeySize]; + + bool IsEqualTo(const CKeyInfo &a) const; + void CalculateDigest(); + + CKeyInfo() { Init(); } + void Init() + { + NumCyclesPower = 0; + SaltSize = 0; + for (int i = 0; i < sizeof(Salt); i++) + Salt[i] = 0; + } +}; + +class CKeyInfoCache +{ + int Size; + CObjectVector<CKeyInfo> Keys; +public: + CKeyInfoCache(int size): Size(size) {} + bool Find(CKeyInfo &key); + // HRESULT Calculate(CKeyInfo &key); + void Add(CKeyInfo &key); +}; + +class CBase +{ + CKeyInfoCache _cachedKeys; +protected: + CKeyInfo _key; + Byte _iv[16]; + UInt32 _ivSize; + void CalculateDigest(); + CBase(); +}; + +class CBaseCoder: + public ICompressFilter, + public ICryptoSetPassword, + public CMyUnknownImp, + public CBase +{ +protected: + CMyComPtr<ICompressFilter> _aesFilter; + + virtual HRESULT CreateFilter() = 0; + #ifndef CRYPTO_AES + HRESULT CreateFilterFromDLL(REFCLSID clsID); + #endif +public: + STDMETHOD(Init)(); + STDMETHOD_(UInt32, Filter)(Byte *data, UInt32 size); + + STDMETHOD(CryptoSetPassword)(const Byte *data, UInt32 size); +}; + +#ifndef EXTRACT_ONLY + +class CEncoder: + public CBaseCoder, + public ICompressWriteCoderProperties, + // public ICryptoResetSalt, + public ICryptoResetInitVector +{ + virtual HRESULT CreateFilter(); +public: + MY_UNKNOWN_IMP3( + ICryptoSetPassword, + ICompressWriteCoderProperties, + // ICryptoResetSalt, + ICryptoResetInitVector) + STDMETHOD(WriteCoderProperties)(ISequentialOutStream *outStream); + // STDMETHOD(ResetSalt)(); + STDMETHOD(ResetInitVector)(); +}; +#endif + +class CDecoder: + public CBaseCoder, + public ICompressSetDecoderProperties2 +{ + virtual HRESULT CreateFilter(); +public: + MY_UNKNOWN_IMP2( + ICryptoSetPassword, + ICompressSetDecoderProperties2) + STDMETHOD(SetDecoderProperties2)(const Byte *data, UInt32 size); +}; + +}} + +#endif |