package security
import (
	"crypto/sha256"
	"errors"
	"io"
	"runtime"
	"runtime/debug"
	"sync"
	"unsafe"
)
type AntiAnalysis struct{}
func NewAntiAnalysis() *AntiAnalysis {
	return &AntiAnalysis{}
}
func (a *AntiAnalysis) CheckDebugger() bool {
	
	
	return false
}
func (a *AntiAnalysis) CheckVirtualMachine() bool {
	
	
	return false
}
func (a *AntiAnalysis) CheckSandbox() bool {
	
	
	return false
}
func (a *AntiAnalysis) CheckEnvironment() map[string]bool {
	return map[string]bool{
		"debugger": a.CheckDebugger(),
		"vm":       a.CheckVirtualMachine(),
		"sandbox":  a.CheckSandbox(),
	}
}
type CodeIntegrity struct {
	checksums map[uintptr][]byte
	mutex     sync.Mutex
}
func NewCodeIntegrity() *CodeIntegrity {
	return &CodeIntegrity{
		checksums: make(map[uintptr][]byte),
	}
}
func (c *CodeIntegrity) CalculateChecksum(address uintptr, size uint64) []byte {
	
	
	data := make([]byte, size)
	for i := uintptr(0); i < uintptr(size); i++ {
		ptr := unsafe.Pointer(address + i)
		data[i] = *(*byte)(ptr)
	}
	hash := sha256.Sum256(data)
	return hash[:]
}
func (c *CodeIntegrity) StoreChecksum(address uintptr, size uint64) error {
	c.mutex.Lock()
	defer c.mutex.Unlock()
	checksum := c.CalculateChecksum(address, size)
	c.checksums[address] = checksum
	return nil
}
func (c *CodeIntegrity) VerifyChecksum(address uintptr, size uint64) (bool, error) {
	c.mutex.Lock()
	defer c.mutex.Unlock()
	storedChecksum, ok := c.checksums[address]
	if !ok {
		return false, errors.New("no checksum stored for this address")
	}
	currentChecksum := c.CalculateChecksum(address, size)
	
	if len(storedChecksum) != len(currentChecksum) {
		return false, nil
	}
	for i := 0; i < len(storedChecksum); i++ {
		if storedChecksum[i] != currentChecksum[i] {
			return false, nil
		}
	}
	return true, nil
}
type SelfModifyingCode struct {
	originalCode map[uintptr][]byte
	mutex        sync.Mutex
}
func NewSelfModifyingCode() *SelfModifyingCode {
	return &SelfModifyingCode{
		originalCode: make(map[uintptr][]byte),
	}
}
func (s *SelfModifyingCode) SaveOriginalCode(address uintptr, size uint64) error {
	s.mutex.Lock()
	defer s.mutex.Unlock()
	
	code := make([]byte, size)
	for i := uintptr(0); i < uintptr(size); i++ {
		ptr := unsafe.Pointer(address + i)
		code[i] = *(*byte)(ptr)
	}
	s.originalCode[address] = code
	return nil
}
func (s *SelfModifyingCode) RestoreOriginalCode(address uintptr) error {
	s.mutex.Lock()
	defer s.mutex.Unlock()
	
	code, ok := s.originalCode[address]
	if !ok {
		return errors.New("no original code stored for this address")
	}
	
	for i := 0; i < len(code); i++ {
		ptr := unsafe.Pointer(address + uintptr(i))
		*(*byte)(ptr) = code[i]
	}
	return nil
}
func (s *SelfModifyingCode) EncryptCode(address uintptr, size uint64, key []byte) error {
	
	
	return nil
}
func (s *SelfModifyingCode) DecryptCode(address uintptr, size uint64, key []byte) error {
	
	
	return nil
}
type SecurityManager struct {
	MemoryProtector *MemoryProtector
	AntiAnalysis    *AntiAnalysis
	CodeIntegrity   *CodeIntegrity
	SelfModCode     *SelfModifyingCode
}
func NewSecurityManager() *SecurityManager {
	return &SecurityManager{
		MemoryProtector: NewMemoryProtector(),
		AntiAnalysis:    NewAntiAnalysis(),
		CodeIntegrity:   NewCodeIntegrity(),
		SelfModCode:     NewSelfModifyingCode(),
	}
}
func (s *SecurityManager) Initialize() error {
	
	runtime.GC()
	debug.FreeOSMemory()
	return nil
}
func (s *SecurityManager) SecureMemory(address uintptr, size uint64, password string) error {
	
	key := deriveKey(password)
	
	if err := s.MemoryProtector.LockMemoryRegion(address, size); err != nil {
		return err
	}
	
	if err := s.MemoryProtector.ProtectMemoryRegion(address, size); err != nil {
		return err
	}
	
	if err := s.MemoryProtector.EncryptMemoryRegion(address, size, key); err != nil {
		return err
	}
	return nil
}
func (s *SecurityManager) UnsecureMemory(address uintptr, size uint64, password string) error {
	
	key := deriveKey(password)
	
	if err := s.MemoryProtector.UnlockMemoryRegion(address, size); err != nil {
		return err
	}
	
	if err := s.MemoryProtector.UnprotectMemoryRegion(address); err != nil {
		return err
	}
	
	if err := s.MemoryProtector.DecryptMemoryRegion(address, size, key); err != nil {
		return err
	}
	return nil
}
func (s *SecurityManager) SecureNetwork(conn io.ReadWriter) io.ReadWriter {
	
	
	return conn
}
func (s *SecurityManager) GetSecurityStatus() map[string]interface{} {
	status := make(map[string]interface{})
	
	status["analysis"] = s.AntiAnalysis.CheckEnvironment()
	
	status["memory_protection"] = map[string]interface{}{
		"protected_regions": len(s.MemoryProtector.protectedRegions),
	}
	
	status["code_integrity"] = map[string]interface{}{
		"checksums": len(s.CodeIntegrity.checksums),
	}
	
	status["self_modifying_code"] = map[string]interface{}{
		"original_code_regions": len(s.SelfModCode.originalCode),
	}
	return status
}
func (s *SecurityManager) GetSecurityRecommendations() []string {
	return []string{
		"Use memory protection for sensitive data",
		"Use code integrity checking to detect tampering",
		"Use self-modifying code to evade analysis",
		"Use network obfuscation to evade detection",
		"Use DNS tunneling when other protocols are blocked",
		"Use common ports to evade firewall restrictions",
		"Encrypt payloads to evade antivirus detection",
		"Check for debuggers and analysis tools",
	}
}
