www.pudn.com > CNGCryptFile.rar > MyCNGCryptFile.h

// MyCNGCryptFile.h: interface for the CMyCNGCryptFile class. 
// 
////////////////////////////////////////////////////////////////////// 
 
#if !defined(AFX_MYCNGCRYPTFILE_H__E72946B6_46C1_44A5_B25A_02E983654883__INCLUDED_) 
#define AFX_MYCNGCRYPTFILE_H__E72946B6_46C1_44A5_B25A_02E983654883__INCLUDED_ 
 
#if _MSC_VER > 1000 
#pragma once 
#endif // _MSC_VER > 1000 
 
#include  
//#include //Problem found cut and paste 
//Manaully include in the project settings "C:\Program Files\Microsoft CNG Development Kit\Include" 
// "C:\Program Files\Microsoft CNG Development Kit\Lib\X86" 
 
//TODO DA controllare cosa serve veramente 
 
#ifndef NTSTATUS 
typedef LONG NTSTATUS, *PNSTATUS; 
#endif 
 
#ifndef STATUS_SUCCESS 
#define STATUS_SUCCESS                  ((NTSTATUS)0x00000000L) 
#define STATUS_NOT_SUPPORTED            ((NTSTATUS)0xC00000BBL) 
#define STATUS_UNSUCCESSFUL             ((NTSTATUS)0xC0000001L) 
#define STATUS_INVALID_PARAMETER        ((NTSTATUS)0xC000000DL) 
#define STATUS_HMAC_NOT_SUPPORTED       ((NTSTATUS)0xC000A001L) 
#define STATUS_BUFFER_TOO_SMALL         ((NTSTATUS)0xC0000023L) 
#define STATUS_NOT_IMPLEMENTED          ((NTSTATUS)0xC0000002L) 
#define STATUS_ENTRYPOINT_NOT_FOUND     ((NTSTATUS)0xC0000139l) 
#endif 
 
const DWORD CHUNK_SIZE = 16; 
 
#define SYMM_KEY_SIZE_SECRET 16 
 
//Set IV 
static const BYTE rgbIV[] = 
{ 
	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 
	0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F 
}; 
 
//Set AES KEY 
static const BYTE rgbAES128Key[] = 
{ 
	'D', 'r', '.', 'L', 'u', 'i', 'j', 'i',  
	'C', 'N', 'G', ' ', 'T', 'e', 's', 't' 
}; 
 
class CMyCNGCryptFile   
{ 
	//File  
	void SetLenghtFileToOpen(ULONGLONG iLenghtFileToOpen ); 
	bool LastCryptBuffRead(); 
	void SetTotByteRead(UINT iByteRead); 
	ULONGLONG m_iLenghtFileToOpen; 
	ULONGLONG m_iTotalByteRead; 
 
 
	//Handle  
	BCRYPT_ALG_HANDLE       m_hAesAlg		; 
	BCRYPT_KEY_HANDLE       m_hKey			;	 
	PBYTE                   m_pbKeyObject	; 
	PBYTE                   m_pbIV			; 
	 
	//Handle for Hash 
	BCRYPT_HASH_HANDLE		m_hHash			; 
	PBYTE					m_pbHashObject	; 
	BCRYPT_ALG_HANDLE		m_hHashAlg		; 
 
	//  
	bool OpenMSPrimitiveProviderAES(); 
	bool CreateSymmetricKey_AES_CBC(DWORD &cbKeyObject, DWORD &cbIV ); 
	bool CreateSymmetricKey_SHA1_Hash(PCWSTR pwszText, DWORD cbKeyObj); 
	bool Crypt(bool bEncrypt,PUCHAR pbufFileToOpen, ULONG iBytesRead, ULONG cbIV, PBYTE pbufFileToSave, DWORD& iBufToSave); 
	bool CryptLastByte(bool bEncrypt,PUCHAR pbufFileToOpen, ULONG iBytesRead, ULONG cbIV, PBYTE pbufFileToSave, DWORD& iBufToSave); 
	 
 
	CString m_sError; 
public: 
	bool EnumProviders(CStringList *lstRegisteredProviders); 
	bool CryptFile(bool bEncrypt, CString sFileToOpen,CString sFileToCrypt,CString sKey); 
	CMyCNGCryptFile(); 
	virtual ~CMyCNGCryptFile(); 
	CString GetLastError(); 
 
}; 
 
#endif // !defined(AFX_MYCNGCRYPTFILE_H__E72946B6_46C1_44A5_B25A_02E983654883__INCLUDED_)