QuickHash Library

API

CRC16C API Overview

CRC16C API assists you in generating CRC16C checksums.

CRC16C checksums can be generated in two modes: accumulative and non-accumulative.

The accumulative mode is applied when the data for which the checksum is calculated (data) represents one or more continuous memory block(s) or when the data is created at runtime in many steps (for instance, when reading a file).

Non-accumulative mode can be applied when the data represents only one continuous memory block.

Note. When the data represents just one continuous memory block, both methods can be applied.

To generate the checksum in the accumulative mode, perform the following:

• Allocate at least SLC_CRC16C_CONTEXTSIZE bytes for the context.

• Call the SL_CRC16C_Init function to initialize the context.

• Call the SL_CRC16C_Update function for each continuous memory block of data to perform the calculations.

Note. You can use SL_CRC16C_UpdateStr function (instead of SL_CRC16C_Update function) if the data represents a null-terminated string.

• Call the SL_CRC16C_Final or the SL_CRC16C_FinalHex function to obtain the checksum.

Note. Call the SL_CRC16C_FinalHex function when you need to retrieve the hexadecimal string representation of the checksum.

To generate the checksum in the non-accumulative mode, perform the following:

• Call the SL_CRC16C_Calculate or the SL_CRC16C_CalculateHex function to calculate and retrieve the checksum.

Note 1. Call the SL_CRC16C_CalculateHex function when you need to retrieve the hexadecimal string representation of the checksum.

Note 2. You can use SL_CRC16C_CalculateStr and SL_CRC16C_CalculateStrHex functions (instead of SL_CRC16C_Calculate and SL_CRC16C_CalculateHex functions) if the data represents a null-terminated string.

CRC16C API Functions   |   Useful Links   |   HashCalc

Samples   CRC16C checksum generation for a file

               CRC16C checksum generation for a string