aes_xts.h

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/*
 * aes_xts.h
 *
 * AES-XTS Implementation
 *
 * Copyright 2019-2024 DigiCert, Inc. All Rights Reserved.
 * Proprietary and Confidential Material.
 *
 */

/*------------------------------------------------------------------*/

#ifndef __AES_XTS_HEADER__
#define __AES_XTS_HEADER__

#include "../cap/capdecl.h"

#ifdef __ENABLE_MOCANA_CRYPTO_INTERFACE__
#include "../crypto_interface/crypto_interface_aes_xts_priv.h"
#endif

#ifdef __cplusplus
extern "C" {
#endif


/*------------------------------------------------------------------*/

/*  The structure for key information */
typedef struct aesXTSCipherContext
{
    aesCipherContext    *pKey1;
    aesCipherContext    *pKey2;
    MocSymCtx         pMocSymCtx;
    ubyte             enabled;

} aesXTSCipherContext, AES_XTS_Ctx;



/*------------------------------------------------------------------*/
/*  Function prototypes  */

MOC_EXTERN BulkCtx  CreateAESXTSCtx(MOC_SYM(hwAccelDescr hwAccelCtx) const ubyte *pKeyMaterial, sbyte4 keyLength, sbyte4 encrypt);
MOC_EXTERN BulkCtx  CreateAESXTSCtxExt(MOC_SYM(hwAccelDescr hwAccelCtx) const ubyte *pKeyMaterial, sbyte4 keyLength, sbyte4 encrypt, void *pExtCtx);
    
MOC_EXTERN MSTATUS  DeleteAESXTSCtx(MOC_SYM(hwAccelDescr hwAccelCtx) BulkCtx *pCtx);
MOC_EXTERN MSTATUS  DeleteAESXTSCtxExt(MOC_SYM(hwAccelDescr hwAccelCtx) BulkCtx *pCtx, void *pExtCtx);

MOC_EXTERN MSTATUS  DoAESXTS(MOC_SYM(hwAccelDescr hwAccelCtx) BulkCtx pCtx, ubyte *pData, sbyte4 dataLen,
            sbyte4 encrypt, ubyte *pTweak);
MOC_EXTERN MSTATUS  DoAESXTSExt(MOC_SYM(hwAccelDescr hwAccelCtx) BulkCtx pCtx, ubyte *pData, sbyte4 dataLen,
            sbyte4 encrypt, ubyte *pTweak, void *pExtCtx);
    
/* algo specific API -- might be easier to use in some cases */

MOC_EXTERN MSTATUS AESXTSInit( MOC_SYM(hwAccelDescr hwAccelCtx)
                                aesXTSCipherContext *pCtx,
                                const ubyte *pKey1, const ubyte *pKey2,
                                sbyte4 keyLength, sbyte4 encrypt);

MOC_EXTERN MSTATUS AESXTSInitExt( MOC_SYM(hwAccelDescr hwAccelCtx)
                                  aesXTSCipherContext *pCtx,
                                  const ubyte *pKey1, const ubyte *pKey2,
                                  sbyte4 keyLength, sbyte4 encrypt, void *pExtCtx);
    
MOC_EXTERN MSTATUS AESXTSEncrypt( MOC_SYM(hwAccelDescr hwAccelCtx)
                                  aesXTSCipherContext *pCtx,
                                  ubyte pTweak[AES_BLOCK_SIZE],
                                  ubyte *pPlain, ubyte4 plainLen);
MOC_EXTERN MSTATUS AESXTSEncryptExt( MOC_SYM(hwAccelDescr hwAccelCtx)
                                     aesXTSCipherContext *pCtx,
                                     ubyte pTweak[AES_BLOCK_SIZE],
                                     ubyte *pPlain, ubyte4 plainLen, void *pExtCtx);
MOC_EXTERN MSTATUS AESXTSDecrypt( MOC_SYM(hwAccelDescr hwAccelCtx)
                                  aesXTSCipherContext *pCtx,
                                  ubyte pTweak[AES_BLOCK_SIZE],
                                  ubyte *pCipher, ubyte4 cipherLen);

MOC_EXTERN MSTATUS AESXTSDecryptExt( MOC_SYM(hwAccelDescr hwAccelCtx)
                                     aesXTSCipherContext *pCtx,
                                     ubyte pTweak[AES_BLOCK_SIZE],
                                     ubyte *pCipher, ubyte4 cipherLen, void *pExtCtx);

MOC_EXTERN MSTATUS CloneAESXTSCtx( MOC_SYM(hwAccelDescr hwAccelCtx)
                                  BulkCtx pCtx, BulkCtx *ppNewCtx);

#ifdef __cplusplus
}
#endif

#endif /* __AES_XTS_HEADER__ */