103 lines
3.2 KiB
C
103 lines
3.2 KiB
C
/* panama.h */
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/**************************************************************************+
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*
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* PANAMA high-performance reference C-code, based on the description in
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* the paper 'Fast Hashing and Stream Encryption with PANAMA', presented
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* at the Fast Software Encryption Workshop, Paris, 1998, see "Fast
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* Software Encryption - 5th International Workshop, FSE'98", edited by
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* Serge Vaudenay, LNCS-1372, Springer-Verlag, 1998, pp 60-74, also
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* available on-line at http://standard.pictel.com/ftp/research/security
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*
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* Algorithm design by Joan Daemen and Craig Clapp
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*
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* panama.h - Header file for Panama C-code implementation.
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*
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*
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* History:
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*
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* 29-Oct-98 Craig Clapp Implemention for Dr. Dobbs, Dec. 1998 issue,
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* based on earlier performance-benchmark code.
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*
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*
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* Notes: This code is supplied for the purposes of evaluating the
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* performance of the Panama stream/hash module and as a
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* reference implementation for generating test vectors for
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* compatibility / interoperability verification.
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*
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*
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+**************************************************************************/
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#ifndef NULL
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#define NULL 0
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#endif
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#define WORDLENGTH 32
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#define ONES 0xffffffffL
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/* standard C idioms for Microsoft and TriMedia compiler features */
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#define restrict /* 'restrict' keyword is not part of ANSI C, null it out */
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#define ROTL32(a,shift) (((a) << (shift)) | ((a) >> (WORDLENGTH - (shift))))
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/****** structure definitions ******/
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#define PAN_STAGE_SIZE 8
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#define PAN_STAGES 32
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#define PAN_STATE_SIZE 17
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typedef struct {
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word32 word[PAN_STAGE_SIZE];
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} PAN_STAGE;
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typedef struct {
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PAN_STAGE stage[PAN_STAGES];
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int tap_0;
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} PAN_BUFFER;
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typedef struct {
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word32 word[PAN_STATE_SIZE];
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} PAN_STATE;
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typedef struct {
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PAN_BUFFER buffer;
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PAN_STATE state;
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word32 wkeymat[8];
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byte *keymat;
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int keymat_pointer;
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} PANAMA_KEY;
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/****** function prototypes ******/
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static void pan_pull(word32 * restrict In, /* input array */
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word32 * restrict Out, /* output array */
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word32 pan_blocks, /* number of blocks to be Pulled */
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PAN_BUFFER * restrict buffer, /* LFSR buffer */
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PAN_STATE * restrict state); /* 17-word finite-state machine */
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static void pan_push(word32 * restrict In, /* input array */
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word32 pan_blocks, /* number of blocks to be Pushed */
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PAN_BUFFER * restrict buffer, /* LFSR buffer */
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PAN_STATE * restrict state); /* 17-word finite-state machine */
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static void pan_reset(PAN_BUFFER * buffer, PAN_STATE * state);
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#ifndef USE_MODULES
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void _mcrypt_panama_set_key(PANAMA_KEY * pan_key, char *in_key, int keysize,
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char *init_vec, int vecsize);
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void _mcrypt_panama_encrypt(PANAMA_KEY * pan_key, byte * buf, int length);
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void _mcrypt_panama_decrypt(PANAMA_KEY * pan_key, byte * buf, int length);
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int _mcrypt_panama_get_size ();
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int _mcrypt_panama_get_block_size();
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int _panama_is_block_algorithm();
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int _mcrypt_panama_get_key_size();
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int _mcrypt_panama_get_supported_key_sizes(int *size);
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char * _mcrypt_panama_get_algorithms_name();
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int _mcrypt_panama_self_test();
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word32 _mcrypt_panama_algorithm_version();
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#endif
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