ppc-gcm.h - mozsearch

/******************************************************************************/

/* LICENSE:                                                                   */

/* This submission to NSS is to be made available under the terms of the      */

/* Mozilla Public License, v. 2.0. You can obtain one at http:                */

/* //mozilla.org/MPL/2.0/.                                                    */

/******************************************************************************/

#ifndef PPC_GCM_H

#define PPC_GCM_H 1

#include "blapii.h"

typedef struct ppc_AES_GCMContextStr ppc_AES_GCMContext;

ppc_AES_GCMContext *ppc_AES_GCM_CreateContext(void *context, freeblCipherFunc cipher,

                                              const unsigned char *params);

void ppc_AES_GCM_DestroyContext(ppc_AES_GCMContext *gcm, PRBool freeit);

SECStatus ppc_AES_GCM_EncryptUpdate(ppc_AES_GCMContext *gcm, unsigned char *outbuf,

                                    unsigned int *outlen, unsigned int maxout,

                                    const unsigned char *inbuf, unsigned int inlen,

                                    unsigned int blocksize);

SECStatus ppc_AES_GCM_DecryptUpdate(ppc_AES_GCMContext *gcm, unsigned char *outbuf,

                                    unsigned int *outlen, unsigned int maxout,

                                    const unsigned char *inbuf, unsigned int inlen,

                                    unsigned int blocksize);

SECStatus ppc_AES_GCM_EncryptAEAD(ppc_AES_GCMContext *gcm,

                                  unsigned char *outbuf,

                                  unsigned int *outlen, unsigned int maxout,

                                  const unsigned char *inbuf, unsigned int inlen,

                                  void *params, unsigned int paramLen,

                                  const unsigned char *aad, unsigned int aadLen,

                                  unsigned int blocksize);

SECStatus ppc_AES_GCM_DecryptAEAD(ppc_AES_GCMContext *gcm,

                                  unsigned char *outbuf,

                                  unsigned int *outlen, unsigned int maxout,

                                  const unsigned char *inbuf, unsigned int inlen,

                                  void *params, unsigned int paramLen,

                                  const unsigned char *aad, unsigned int aadLen,

                                  unsigned int blocksize);

/* Prototypes of the functions defined in the assembler file.  */

/* Prepares the constants used in the aggregated reduction method */

void ppc_aes_gcmINIT(unsigned char Htbl[8 * 16],

                     PRUint32 *KS,

                     int NR);

/* Produces the final GHASH value */

void ppc_aes_gcmTAG(unsigned char Htbl[8 * 16],

                    unsigned char *Tp,

                    unsigned long Mlen,

                    unsigned long Alen,

                    unsigned char *X0,

                    unsigned char *TAG);

/* Hashes the Additional Authenticated Data, should be used before enc/dec.

   Operates on any length of data. Partial block is padded internally. */

void ppc_aes_gcmHASH(unsigned char Htbl[8 * 16],

                     const unsigned char *AAD,

                     unsigned long Alen,

                     unsigned char *Tp);

/* Crypt only, used in combination with ppc_aes_gcmAAD().

   Operates on any length of data, however partial block should only be encrypted

   at the last call, otherwise the result will be incorrect. */

void ppc_aes_gcmCRYPT(const unsigned char *PT,

                      unsigned char *CT,

                      unsigned long len,

                      unsigned char *CTRP,

                      PRUint32 *KS,

                      int NR);

#endif