wipe.h

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/*
 Copyright (c) 2008 TrueCrypt Foundation. All rights reserved.

 Governed by the TrueCrypt License 2.6 the full text of which is contained
 in the file License.txt included in TrueCrypt binary and source code
 distribution packages.
*/

#ifndef TC_HEADER_Common_Wipe
#define TC_HEADER_Common_Wipe

#include "Tcdefs.h"

#ifdef __cplusplus
extern "C" {
#endif

typedef enum
{
	/* WARNING: As these values are written to config files, if they or their meanings
	are changed, incompatiblity with other versions may arise (upgrade, downgrade, etc.).
	When adding a new constant, verify that the value is unique within this block. */
	TC_WIPE_NONE = 0,
	TC_WIPE_1_RAND = 100,
	TC_WIPE_3_DOD_5220 = 300,
	TC_WIPE_7_DOD_5220 = 700,
	TC_WIPE_35_GUTMANN = 3500

} WipeAlgorithmId;

#define TC_WIPE_RAND_CHAR_COUNT 3

size_t GetWipePassCount (WipeAlgorithmId algorithm);
BOOL WipeBuffer (WipeAlgorithmId algorithm, byte randChars[TC_WIPE_RAND_CHAR_COUNT], int pass, byte *buffer, size_t size);

#ifdef __cplusplus
}
#endif

#endif // TC_HEADER_Common_Wipe