mcuxCsslMemory_Copy Function Definitions More...

Functions
mcuxCsslMemory_Status_t	mcuxCsslMemory_Copy (mcuxCsslParamIntegrity_Checksum_t chk, void const pSrc, void pDst, uint32_t dstLength, uint32_t length)
	Copies `length` bytes of data from `pSrc` to `pDst`.

Detailed Description

mcuxCsslMemory_Copy Function Definitions

Function Documentation

mcuxCsslMemory_Status_t mcuxCsslMemory_Copy	(	mcuxCsslParamIntegrity_Checksum_t	chk,
		void const *	pSrc,
		void *	pDst,
		uint32_t	dstLength,
		uint32_t	length )

Copies length bytes of data from pSrc to pDst.

The implementation is secure in the following aspects:

Constant execution time: If pSrc and pDst have the same offset to the nearest 16-byte boundary, and if length is the same, the execution sequence of the code is always identical.
Parameter integrity protection: An incorrect parameter checksum makes the function return immediately.
Code flow protection: The function call is protected. Additionally, the result depends on all steps of the calculation.
Buffer overflow protection: No data is written to pDst beyond dstLength bytes.

Parameters

[in]	chk	The parameter checksum, generated with #MCUX_CSSL_PI_PROTECT.
[in]	pSrc	The data to be copied. Must not be NULL. Must not overlap with `pDst`.
[out]	pDst	The destination pointer. Must not be NULL. Must not overlap with `pSrc`.
[in]	dstLength	The size of the destination data buffer in bytes.
[in]	length	The number of bytes to copy.

Return values

MCUXCSSLMEMORY_STATUS_OK	If the operation was successful.
MCUXCSSLMEMORY_STATUS_INVALID_PARAMETER	If one of the parameters was invalid (i.e. `pSrc` or `pDst` was NULL or `length` was zero).
MCUXCSSLMEMORY_STATUS_FAULT	If a fault was detected.