cracen_aead_decrypt()

psa_status_t cracen_aead_decrypt	(	const psa_key_attributes_t *	attributes,
		const uint8_t *	key_buffer,
		size_t	key_buffer_size,
		psa_algorithm_t	alg,
		const uint8_t *	nonce,
		size_t	nonce_length,
		const uint8_t *	additional_data,
		size_t	additional_data_length,
		const uint8_t *	ciphertext,
		size_t	ciphertext_length,
		uint8_t *	plaintext,
		size_t	plaintext_size,
		size_t *	plaintext_length )

#include <subsys/nrf_security/src/drivers/cracen/cracenpsa/include/cracen_psa_aead.h>

Authenticate and decrypt a message using AEAD.

Parameters

[in]	attributes	Key attributes.
[in]	key_buffer	Key material buffer.
[in]	key_buffer_size	Size of the key buffer in bytes.
[in]	alg	AEAD algorithm.
[in]	nonce	Nonce or IV.
[in]	nonce_length	Length of the nonce in bytes.
[in]	additional_data	Additional Authenticated Data (AAD).
[in]	additional_data_length	Length of Additional Authenticated Data (AAD) in bytes.
[in]	ciphertext	Ciphertext and tag to decrypt.
[in]	ciphertext_length	Length of the ciphertext in bytes.
[out]	plaintext	Buffer to store the plaintext.
[in]	plaintext_size	Size of the plaintext buffer in bytes.
[out]	plaintext_length	Length of the decrypted plaintext in bytes.

Return values

PSA_SUCCESS	The operation completed successfully.
PSA_ERROR_INVALID_HANDLE	The key handle is invalid.
PSA_ERROR_INVALID_SIGNATURE	The authentication tag is invalid.
PSA_ERROR_NOT_SUPPORTED	The algorithm is not supported.
PSA_ERROR_BUFFER_TOO_SMALL	The plaintext buffer is too small.