The Tor Browser: security/nss/lib/freebl/ctr.h@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* This Source Code Form is subject to the terms of the Mozilla Public

     2  * License, v. 2.0. If a copy of the MPL was not distributed with this

     3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     5 #ifndef CTR_H

     6 #define CTR_H 1

     8 #include "blapii.h"

    10 /* This structure is defined in this header because both ctr.c and gcm.c

    11  * need it. */

    12 struct CTRContextStr {

    13    freeblCipherFunc cipher;

    14    void *context;

    15    unsigned char counter[MAX_BLOCK_SIZE];

    16    unsigned char buffer[MAX_BLOCK_SIZE];

    17    unsigned long counterBits;

    18    unsigned int bufPtr;

    19 };

    21 typedef struct CTRContextStr CTRContext;

    23 SECStatus CTR_InitContext(CTRContext *ctr, void *context,

    24 			freeblCipherFunc cipher, const unsigned char *param,

    25 			unsigned int blocksize);

    27 /*

    28  * The context argument is the inner cipher context to use with cipher. The

    29  * CTRContext does not own context. context needs to remain valid for as long

    30  * as the CTRContext is valid.

    31  *

    32  * The cipher argument is a block cipher in the ECB encrypt mode.

    33  */

    34 CTRContext * CTR_CreateContext(void *context, freeblCipherFunc cipher,

    35 			const unsigned char *param, unsigned int blocksize);

    37 void CTR_DestroyContext(CTRContext *ctr, PRBool freeit);

    39 SECStatus CTR_Update(CTRContext *ctr, unsigned char *outbuf,

    40 			unsigned int *outlen, unsigned int maxout,

    41 			const unsigned char *inbuf, unsigned int inlen,

    42 			unsigned int blocksize);

    44 #ifdef USE_HW_AES

    45 SECStatus CTR_Update_HW_AES(CTRContext *ctr, unsigned char *outbuf,

    46 			unsigned int *outlen, unsigned int maxout,

    47 			const unsigned char *inbuf, unsigned int inlen,

    48 			unsigned int blocksize);

    49 #endif

    51 #endif

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