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/*****************************************************************************
* security.h - CC3000 Host Driver Implementation.
* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the
* distribution.
*
* Neither the name of Texas Instruments Incorporated nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*****************************************************************************/
#ifndef _INCLUDE_NUTTX_WIRELESS_CC3000_SECURITY_H
#define _INCLUDE_NUTTX_WIRELESS_CC3000_SECURITY_H
/*****************************************************************************
* Included Files
*****************************************************************************/
#include "nvmem.h"
/*****************************************************************************
* Pre-processor Definitions
*****************************************************************************/
#define AES128_KEY_SIZE 16
#ifndef CC3000_UNENCRYPTED_SMART_CONFIG
/*****************************************************************************
* Public Data
*****************************************************************************/
#ifdef __cplusplus
extern "C"
{
#endif
/*****************************************************************************
* Public Function Prototypes
/*****************************************************************************
/*****************************************************************************
* Name: aes_encrypt
*
* Description:
* AES128 encryption: Given AES128 key and 16 bytes plain text, cipher
* text of 16 bytes is computed. The AES implementation is in mode ECB
* (Electronic Code Book).
*
* Input Parameters:
* key AES128 key of size 16 bytes
* state 16 bytes of plain text and cipher text
*
* Returned Value
* None
*
*****************************************************************************/
void aes_encrypt(uint8_t *state, uint8_t *key);
/*****************************************************************************
* Name: aes_decrypt
*
* Description:
* AES128 decryption: Given AES128 key and 16 bytes cipher text, plain
* text of 16 bytes is computed The AES implementation is in mode ECB
* (Electronic Code Book).
*
* Input Parameters:
* key AES128 key of size 16 bytes
* state 16 bytes of plain text and cipher text
*
* Returned Value
* None
*
*****************************************************************************/
void aes_decrypt(uint8_t *state, uint8_t *key);
/*****************************************************************************
* Name: aes_read_key
*
* Description:
* Reads AES128 key from EEPROM. Reads the AES128 key from fileID #12 in
* EEPROM returns an error if the key does not exist.
*
* Input Parameters:
* key AES128 key of size 16 bytes
*
* Returned Value
* On success 0, error otherwise.
*
*****************************************************************************/
signed long aes_read_key(uint8_t *key);
/*****************************************************************************
* Name: aes_write_key
*
* Description:
* Writes AES128 key from EEPROM Writes the AES128 key to fileID #12 in
* EEPROM
*
* Input Parameters:
* key AES128 key of size 16 bytes
*
* Returned Value
* On success 0, error otherwise.
*
*****************************************************************************/
signed long aes_write_key(uint8_t *key);
#endif /* CC3000_UNENCRYPTED_SMART_CONFIG */
#endif /* _INCLUDE_NUTTX_WIRELESS_CC3000_SECURITY_H */
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