AESCTR_SegmentedOperation Struct Reference

Struct containing the parameters required for encrypting/decrypting a message using a segmented operation. This struct must be updated for each "add data" and "finalize" step. Modifying the structure and any buffers that it points to while an operation is in progress is prohibited. More...

#include <AESCTR.h>

Data Fields
const uint8_t *	input
uint8_t *	output
size_t	inputLength

Detailed Description

Struct containing the parameters required for encrypting/decrypting a message using a segmented operation. This struct must be updated for each "add data" and "finalize" step. Modifying the structure and any buffers that it points to while an operation is in progress is prohibited.

The driver may access it at any point during the operation. It must remain in scope for the entire duration of the operation.

Field Documentation

input

const uint8_t* AESCTR_SegmentedOperation::input

• Encryption: The plaintext buffer to be encrypted in the CTR operation.
• Decryption: The ciphertext to be decrypted.

output

uint8_t* AESCTR_SegmentedOperation::output

• Encryption: The output ciphertext buffer that the encrypted plaintext is copied to.
• Decryption: The plaintext derived from the decrypted ciphertext is copied here.

Size of the output buffer must be greater than or equal to the inputLength.

For CC27XX devices with _HSM-suffixed key encoding, the output buffer needs to be 32-bit aligned.

inputLength

size_t AESCTR_SegmentedOperation::inputLength

Length of the input in bytes. An equal number of bytes will be output by the operation. Must be a non-zero multiple of block size (16-bytes) when calling AESCTR_addData(). May be zero when calling AESCTR_finalize() to finalize a segmented operation without additional data.

For CC27XX devices with _HSM-suffixed key encoding, the inputLength must be block-size aligned.

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The documentation for this struct was generated from the following file:

• AESCTR.h