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comparison: security/nss/lib/freebl/ctr.h
security/nss/lib/freebl/ctr.h
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| -1:000000000000 | 0:1961f177ab5f |
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| 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/. */ | |
| 4 | |
| 5 #ifndef CTR_H | |
| 6 #define CTR_H 1 | |
| 7 | |
| 8 #include "blapii.h" | |
| 9 | |
| 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 }; | |
| 20 | |
| 21 typedef struct CTRContextStr CTRContext; | |
| 22 | |
| 23 SECStatus CTR_InitContext(CTRContext *ctr, void *context, | |
| 24 freeblCipherFunc cipher, const unsigned char *param, | |
| 25 unsigned int blocksize); | |
| 26 | |
| 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); | |
| 36 | |
| 37 void CTR_DestroyContext(CTRContext *ctr, PRBool freeit); | |
| 38 | |
| 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); | |
| 43 | |
| 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 | |
| 50 | |
| 51 #endif |
