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| *******************************************************************************/ |
| |
| /* |
| // |
| // Purpose: |
| // Cryptography Primitive. |
| // Internal Definitions and |
| // Internal DES based Encrypt/Decrypt Function Prototypes |
| // |
| // |
| */ |
| |
| |
| #if !defined(_PCP_DES_H) |
| #define _PCP_DES_H |
| |
| |
| /* |
| // really DES round key saved in terms of pear of 24-bit half mentioned in FIPS 46-3 |
| */ |
| typedef Ipp64u RoundKeyDES; |
| typedef Ipp32u HalfRoundKeyDES; |
| |
| /* |
| // DES context |
| */ |
| struct _cpDES { |
| IppCtxId idCtx; /* DES spec identifier */ |
| Ipp32u dummy; /* alignment only (linux problem)*/ |
| RoundKeyDES enc_keys[16]; /* array of keys for encryprion */ |
| RoundKeyDES dec_keys[16]; /* array of keys for decryprion */ |
| }; |
| |
| /* alignment */ |
| #define DES_ALIGNMENT ((int)(sizeof(Ipp64u))) |
| |
| #define MBS_DES (8) /* data block (bytes) */ |
| |
| /* |
| // Useful macros |
| */ |
| #define DES_ID(ctx) ((ctx)->idCtx) |
| #define DES_EKEYS(ctx) ((ctx)->enc_keys) |
| #define DES_DKEYS(ctx) ((ctx)->dec_keys) |
| #define DES_ID_TEST(ctx) (DES_ID((ctx))==idCtxDES) |
| |
| /* |
| // Internal Tables |
| */ |
| #define MITIGATED (4) |
| |
| #define IMPLEMENTATION MITIGATED |
| |
| |
| #if (IMPLEMENTATION == MITIGATED) |
| extern const __ALIGN64 Ipp32u DESspbox[16*16]; |
| #endif |
| |
| |
| /* |
| // internal functions |
| */ |
| #define SetKey_DES OWNAPI(SetKey_DES) |
| void SetKey_DES(const Ipp8u* pKey, IppsDESSpec* pCtx); |
| |
| #define Cipher_DES OWNAPI(Cipher_DES) |
| Ipp64u Cipher_DES(Ipp64u inpBlk, const RoundKeyDES* pRKey, const Ipp32u spbox[]); |
| |
| #define ENCRYPT_DES(blk, pCtx) Cipher_DES((blk), DES_EKEYS((pCtx)), DESspbox) |
| #define DECRYPT_DES(blk, pCtx) Cipher_DES((blk), DES_DKEYS((pCtx)), DESspbox) |
| |
| /* TDES prototypes */ |
| #define ECB_TDES OWNAPI(ECB_TDES) |
| void ECB_TDES(const Ipp64u* pSrc, Ipp64u* pDst, int nBlocks, const RoundKeyDES* pRKey[3], const Ipp32u spbox[]); |
| #define EncryptCBC_TDES OWNAPI(EncryptCBC_TDES) |
| void EncryptCBC_TDES(const Ipp64u* pSrc, Ipp64u* pDst, int nBlocks, const RoundKeyDES* pRKey[3], Ipp64u iv, const Ipp32u spbox[]); |
| #define DecryptCBC_TDES OWNAPI(DecryptCBC_TDES) |
| void DecryptCBC_TDES(const Ipp64u* pSrc, Ipp64u* pDst, int nBlocks, const RoundKeyDES* pRKey[3], Ipp64u iv, const Ipp32u spbox[]); |
| |
| #endif /* _PCP_DES_H */ |