cracen_sw_aes_ccm_decrypt()

psa_status_t cracen_sw_aes_ccm_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/cracen_sw/include/cracen_sw_aes_ccm.h>

Perform a single-part software AES-CCM decryption.

Parameters

[in]	attributes	Key attributes.
[in]	key_buffer	Key material.
[in]	key_buffer_size	Size of the key material.
[in]	alg	Algorithm to use.
[in]	nonce	Nonce value.
[in]	nonce_length	Length of the nonce.
[in]	additional_data	Additional authenticated data.
[in]	additional_data_length	Length of the additional data.
[in]	ciphertext	Input ciphertext and tag to decrypt.
[in]	ciphertext_length	Length of the ciphertext and tag.
[out]	plaintext	Output buffer for plaintext.
[in]	plaintext_size	Size of the plaintext buffer.
[out]	plaintext_length	Pointer to store the actual plaintext length.

Return values

PSA_SUCCESS	Decryption and verification completed successfully.
PSA_ERROR_INVALID_SIGNATURE	Authentication tag verification failed.
PSA_ERROR_BUFFER_TOO_SMALL	Output buffer too small.
PSA_ERROR_INVALID_ARGUMENT	Invalid nonce length, invalid key size, or ciphertext too short.
PSA_ERROR_NOT_SUPPORTED	Unsupported algorithm or key type.