switch to CMake

src/PSOEncryption.hh

@@ -0,0 +1,74 @@
+#pragma once
+
+#include <inttypes.h>
+#include <stddef.h>
+
+#include <string>
+
+
+
+#define PC_STREAM_LENGTH 57
+#define GC_STREAM_LENGTH 521
+#define BB_STREAM_LENGTH 1042
+
+class PSOEncryption {
+public:
+  virtual ~PSOEncryption() = default;
+
+  virtual void encrypt(void* data, size_t size) = 0;
+  virtual void decrypt(void* data, size_t size);
+
+protected:
+  PSOEncryption() = default;
+};
+
+class PSOPCEncryption : public PSOEncryption {
+public:
+  explicit PSOPCEncryption(uint32_t seed);
+
+  virtual void encrypt(void* data, size_t size);
+
+protected:
+  void update_stream();
+  uint32_t next();
+
+  uint32_t stream[PC_STREAM_LENGTH];
+  uint16_t offset;
+};
+
+class PSOGCEncryption : public PSOEncryption {
+public:
+  explicit PSOGCEncryption(uint32_t key);
+
+  virtual void encrypt(void* data, size_t size);
+
+protected:
+  void update_stream();
+  uint32_t next();
+
+  uint32_t stream[GC_STREAM_LENGTH];
+  uint16_t offset;
+};
+
+class PSOBBEncryption : public PSOEncryption {
+public:
+  struct KeyFile {
+    uint32_t initial_keys[18];
+    uint32_t private_keys[1024];
+  };
+
+  PSOBBEncryption(const KeyFile& key, const void* seed, size_t seed_size);
+
+  virtual void encrypt(void* data, size_t size);
+  virtual void decrypt(void* data, size_t size);
+
+protected:
+  PSOBBEncryption() = default;
+
+  void postprocess_initial_stream(const std::string& seed);
+
+  void update_stream();
+
+  uint32_t stream[BB_STREAM_LENGTH];
+  uint16_t offset;
+};