| // SPDX-License-Identifier: BSD-2-Clause |
| /* LibTomCrypt, modular cryptographic library -- Tom St Denis |
| * |
| * LibTomCrypt is a library that provides various cryptographic |
| * algorithms in a highly modular and flexible manner. |
| * |
| * The library is free for all purposes without any express |
| * guarantee it works. |
| */ |
| #include "tomcrypt_private.h" |
| |
| #ifdef LTC_CCM_MODE |
| |
| /** |
| Reset a CCM state to as if you just called ccm_init(). This saves the initialization time. |
| @param ccm The CCM state to reset |
| @return CRYPT_OK on success |
| */ |
| int ccm_reset(ccm_state *ccm) |
| { |
| LTC_ARGCHK(ccm != NULL); |
| zeromem(ccm->PAD, sizeof(ccm->PAD)); |
| zeromem(ccm->ctr, sizeof(ccm->ctr)); |
| zeromem(ccm->CTRPAD, sizeof(ccm->CTRPAD)); |
| ccm->CTRlen = 0; |
| ccm->current_ptlen = 0; |
| ccm->current_aadlen = 0; |
| |
| return CRYPT_OK; |
| } |
| |
| #endif |
| |
| /* ref: $Format:%D$ */ |
| /* git commit: $Format:%H$ */ |
| /* commit time: $Format:%ai$ */ |
