SHA2LPF3SW.h File Reference

Detailed Description

SHA2 software driver implementation for the Low Power F3 family.

============================================================================

This file should only be included in the board file to fill the SHA2_config struct.

Some devices in the Low Power F3 family do not have a dedicated hardware crypto accelerator. As a result, there are several limitations and advantages over accelerator based implementations.

Limitations

• Asynchronously canceling an operation is not possible. The APIs will always run to completion.
• Invoking driver APIs from multiple contexts at the same time using the same handle is not permitted or guarded against.
• Callback return mode is not supported.
• Blocking return mode does not yield and operates exactly the same as polling mode.

Advantages

• Since this is a software implementation that uses dependency injection, it is possible for multiple clients to simultaneously invoke driver APIs with their respective handles.

Supported Digest Sizes

The driver is built on top of a SHA256 software implementation stored in ROM. As a result, digest sizes other than 256 bits are not supported with this driver.

SHA2_HashTypes Supported
SHA2_HASH_TYPE_256

#include <stdint.h>
#include <stdbool.h>
#include <ti/drivers/SHA2.h>
#include <ti/devices/DeviceFamily.h>
#include <DeviceFamily_constructPath(driverlib/hapi.h)>

Include dependency graph for SHA2LPF3SW.h:

Go to the source code of this file.

Data Structures
struct	SHA2LPF3SW_HWAttrs
	Hardware-specific configuration attributes. More...