chore: initial commit (extracted from Launchers monorepo)

Plugin: ns7zip v2.0.0 Architectures: x86-ansi, x86-unicode, amd64-unicode License: LGPL-2.1-or-later
2026-04-29 14:07:51 +02:00
commit d074cc7c07
3848 changed files with 1076682 additions and 0 deletions
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+// Crypto/Rar5Aes.h
+
+#ifndef ZIP7_INC_CRYPTO_RAR5_AES_H
+#define ZIP7_INC_CRYPTO_RAR5_AES_H
+
+#include "../../../C/Sha256.h"
+
+#include "../../Common/MyBuffer.h"
+
+#include "MyAes.h"
+
+namespace NCrypto {
+namespace NRar5 {
+
+const unsigned kSaltSize = 16;
+const unsigned kPswCheckSize32 = 2;
+const unsigned kAesKeySize = 32;
+
+namespace NCryptoFlags
+{
+  const unsigned kPswCheck = 1 << 0;
+  const unsigned kUseMAC   = 1 << 1;
+}
+
+struct CKeyBase
+{
+protected:
+  UInt32 _key32[kAesKeySize / 4];
+  UInt32 _hashKey32[SHA256_NUM_DIGEST_WORDS];
+  UInt32 _check_Calced32[kPswCheckSize32];
+
+  void Wipe()
+  {
+    memset(this, 0, sizeof(*this));
+  }
+  
+  void CopyCalcedKeysFrom(const CKeyBase &k)
+  {
+    *this = k;
+  }
+};
+
+struct CKey: public CKeyBase
+{
+  CByteBuffer _password;
+  bool _needCalc;
+  unsigned _numIterationsLog;
+  Byte _salt[kSaltSize];
+  
+  bool IsKeyEqualTo(const CKey &key)
+  {
+    return _numIterationsLog == key._numIterationsLog
+        && memcmp(_salt, key._salt, sizeof(_salt)) == 0
+        && _password == key._password;
+  }
+
+  CKey();
+  ~CKey();
+  
+  void Wipe();
+
+#ifdef Z7_CPP_IS_SUPPORTED_default
+  // CKey(const CKey &) = default;
+  CKey& operator =(const CKey &) = default;
+#endif
+};
+
+
+class CDecoder Z7_final:
+  public CAesCbcDecoder,
+  public CKey
+{
+  UInt32 _check32[kPswCheckSize32];
+  bool _canCheck;
+  UInt64 Flags;
+
+  bool IsThereCheck() const { return (Flags & NCryptoFlags::kPswCheck) != 0; }
+public:
+  Byte _iv[AES_BLOCK_SIZE];
+  
+  CDecoder();
+
+  Z7_COM7F_IMP(Init())
+
+  void SetPassword(const Byte *data, size_t size);
+  HRESULT SetDecoderProps(const Byte *data, unsigned size, bool includeIV, bool isService);
+
+  bool CalcKey_and_CheckPassword();
+
+  bool UseMAC() const { return (Flags & NCryptoFlags::kUseMAC) != 0; }
+  UInt32 Hmac_Convert_Crc32(UInt32 crc) const;
+  void Hmac_Convert_32Bytes(Byte *data) const;
+};
+
+}}
+
+#endif