1f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project/* LibTomCrypt, modular cryptographic library -- Tom St Denis 2f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project * 3f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project * LibTomCrypt is a library that provides various cryptographic 4f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project * algorithms in a highly modular and flexible manner. 5f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project * 6f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project * The library is free for all purposes without any express 7f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project * guarantee it works. 8f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project * 9f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com 10f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project */ 11f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project#include "tomcrypt.h" 12f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project 13f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project/** 14f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project @file crypt_unregister_cipher.c 15f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project Unregister a cipher, Tom St Denis 16f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project*/ 17f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project 18f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project/** 19f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project Unregister a cipher from the descriptor table 20f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project @param cipher The cipher descriptor to remove 21f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project @return CRYPT_OK on success 22f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project*/ 23f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Projectint unregister_cipher(const struct ltc_cipher_descriptor *cipher) 24f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project{ 25f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project int x; 26f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project 27f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project LTC_ARGCHK(cipher != NULL); 28f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project 29f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project /* is it already registered? */ 30f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project LTC_MUTEX_LOCK(<c_cipher_mutex); 31f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project for (x = 0; x < TAB_SIZE; x++) { 32f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project if (XMEMCMP(&cipher_descriptor[x], cipher, sizeof(struct ltc_cipher_descriptor)) == 0) { 33f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project cipher_descriptor[x].name = NULL; 34f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project cipher_descriptor[x].ID = 255; 35f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project LTC_MUTEX_UNLOCK(<c_cipher_mutex); 36f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project return CRYPT_OK; 37f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project } 38f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project } 39f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project LTC_MUTEX_UNLOCK(<c_cipher_mutex); 40f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project return CRYPT_ERROR; 41f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project} 42f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project 43f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project/* $Source: /cvs/libtom/libtomcrypt/src/misc/crypt/crypt_unregister_cipher.c,v $ */ 44f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project/* $Revision: 1.6 $ */ 45f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project/* $Date: 2006/11/01 09:28:17 $ */ 46