AES software driver for SAM.
This file defines a useful set of functions for the AES on SAM devices.
Copyright (c) 2013-2018 Microchip Technology Inc. and its subsidiaries.
#include "compiler.h"Data Structures | |
| struct | aes_config |
| AES Configuration structure. More... | |
| struct | aes_dev_inst |
| AES driver software instance structure. More... | |
Typedefs | |
| typedef void(* | aes_callback_t )(void) |
| Interrupt callback function type for AES. More... | |
| typedef enum aes_interrupt_source | aes_interrupt_source_t |
| AES interrupt source type. More... | |
Enumerations | |
| enum | aes_cfb_size { AES_CFB_SIZE_128 = 0, AES_CFB_SIZE_64, AES_CFB_SIZE_32, AES_CFB_SIZE_16, AES_CFB_SIZE_8 } |
| AES CFB size. More... | |
| enum | aes_countermeature_type { AES_COUNTERMEASURE_TYPE_1 = 0x01, AES_COUNTERMEASURE_TYPE_2 = 0x02, AES_COUNTERMEASURE_TYPE_3 = 0x04, AES_COUNTERMEASURE_TYPE_4 = 0x08, AES_COUNTERMEASURE_TYPE_ALL = 0x0F } |
| AES CounterMeasure type. More... | |
| enum | aes_dma_mode { AES_MANUAL_MODE = 0, AES_DMA_MODE } |
| AES DMA mode. More... | |
| enum | aes_encrypt_mode { AES_DECRYPTION = 0, AES_ENCRYPTION } |
| AES Processing mode. More... | |
| enum | aes_interrupt_source { AES_INTERRUPT_INPUT_BUFFER_READY = AESA_IER_ODATARDY, AES_INTERRUPT_OUTPUT_DATA_READY = AESA_IER_IBUFRDY } |
| AES interrupt source type. More... | |
| enum | aes_key_size { AES_KEY_SIZE_128 = 0, AES_KEY_SIZE_192, AES_KEY_SIZE_256 } |
| AES Cryptographic key size. More... | |
| enum | aes_opmode { AES_ECB_MODE = 0, AES_CBC_MODE, AES_OFB_MODE, AES_CFB_MODE, AES_CTR_MODE } |
| AES Confidentiality mode. More... | |
Functions | |
| static void | aes_decryption_key_generate (struct aes_dev_inst *const dev_inst) |
| Starts the computation of the last Nk words of the expanded key. More... | |
| void | aes_disable (struct aes_dev_inst *const dev_inst) |
| Disable the AES. More... | |
| static void | aes_disable_interrupt (struct aes_dev_inst *const dev_inst, aes_interrupt_source_t source) |
| Disable the AES interrupt. More... | |
| void | aes_enable (struct aes_dev_inst *const dev_inst) |
| Enable the AES. More... | |
| static void | aes_enable_interrupt (struct aes_dev_inst *const dev_inst, aes_interrupt_source_t source) |
| Enable the AES interrupt. More... | |
| void | aes_get_config_defaults (struct aes_config *const cfg) |
| Initializes a AES configuration structure to defaults. More... | |
| bool | aes_init (struct aes_dev_inst *const dev_inst, Aesa *const aes, struct aes_config *const cfg) |
| Initialize the AES module. More... | |
| static uint32_t | aes_read_input_buffer_pointer (struct aes_dev_inst *const dev_inst) |
| Read the input buffer pointer position. More... | |
| static uint32_t | aes_read_interrupt_mask (struct aes_dev_inst *const dev_inst) |
| Get the AES interrupt mask status. More... | |
| static uint32_t | aes_read_output_buffer_pointer (struct aes_dev_inst *const dev_inst) |
| Read the output buffer pointer position. More... | |
| static uint32_t | aes_read_output_data (struct aes_dev_inst *const dev_inst) |
| Read the output data. More... | |
| static uint32_t | aes_read_status (struct aes_dev_inst *const dev_inst) |
| Get the AES status. More... | |
| static void | aes_reset (struct aes_dev_inst *const dev_inst) |
| Perform a software reset of the AES. More... | |
| void | aes_set_callback (struct aes_dev_inst *const dev_inst, aes_interrupt_source_t source, aes_callback_t callback, uint8_t irq_level) |
| Set callback for AES. More... | |
| static void | aes_set_config (struct aes_dev_inst *const dev_inst) |
| Configure the AES. More... | |
| static void | aes_set_new_message (struct aes_dev_inst *const dev_inst) |
| Notifies the module that the next input data block is the beginning of a new message. More... | |
| static void | aes_write_drng_seed (struct aes_dev_inst *const dev_inst, uint32_t ul_drng_seed) |
| Write the DRNG seed. More... | |
| void | aes_write_initvector (struct aes_dev_inst *const dev_inst, const uint32_t *p_vector) |
| Write the initialization vector (for the CBC, CFB, OFB & CTR cipher modes) More... | |
| static void | aes_write_input_buffer_pointer (struct aes_dev_inst *const dev_inst, uint32_t ul_in_position) |
| Write the input buffer pointer position. More... | |
| static void | aes_write_input_data (struct aes_dev_inst *const dev_inst, uint32_t ul_data) |
| Write the input data. More... | |
| void | aes_write_key (struct aes_dev_inst *const dev_inst, const uint32_t *p_key) |
| Write the 128/192/256bit cryptographic key. More... | |
| static void | aes_write_output_buffer_pointer (struct aes_dev_inst *const dev_inst, uint32_t ul_out_position) |
| Write the output buffer pointer position. More... | |
1.8.5