gecko/security/nss/lib/freebl/ctr.h
Brian Smith 4453811aee Bug 795972: Upgrade NSS to NSS_3_14_BETA1, r=me
--HG--
rename : security/nss/lib/freebl/sechash.h => security/nss/lib/cryptohi/sechash.h
rename : security/nss/lib/softoken/secmodt.h => security/nss/lib/pk11wrap/secmodt.h
rename : security/nss/lib/freebl/hasht.h => security/nss/lib/util/hasht.h
extra : rebase_source : 7da6cd73ca2605a261085ad7fb3b90315e38ad6b
2012-10-01 11:02:15 -07:00

45 lines
1.3 KiB
C

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef CTR_H
#define CTR_H 1
#include "blapii.h"
/* This structure is defined in this header because both ctr.c and gcm.c
* need it. */
struct CTRContextStr {
freeblCipherFunc cipher;
void *context;
unsigned char counter[MAX_BLOCK_SIZE];
unsigned char buffer[MAX_BLOCK_SIZE];
unsigned long counterBits;
unsigned int bufPtr;
};
typedef struct CTRContextStr CTRContext;
SECStatus CTR_InitContext(CTRContext *ctr, void *context,
freeblCipherFunc cipher, const unsigned char *param,
unsigned int blocksize);
/*
* The context argument is the inner cipher context to use with cipher. The
* CTRContext does not own context. context needs to remain valid for as long
* as the CTRContext is valid.
*
* The cipher argument is a block cipher in the ECB encrypt mode.
*/
CTRContext * CTR_CreateContext(void *context, freeblCipherFunc cipher,
const unsigned char *param, unsigned int blocksize);
void CTR_DestroyContext(CTRContext *ctr, PRBool freeit);
SECStatus CTR_Update(CTRContext *ctr, unsigned char *outbuf,
unsigned int *outlen, unsigned int maxout,
const unsigned char *inbuf, unsigned int inlen,
unsigned int blocksize);
#endif