mbedtls_psa_cipher_finish() function

Finish encrypting or decrypting a message in a cipher operation.

Syntax

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Summary

Declaration

Definition

from psa_crypto_cipher.h:192

psa_status_t mbedtls_psa_cipher_finish( mbedtls_psa_cipher_operation_t *operation, uint8_t *output, size_t output_size, size_t *output_length);

Implemented in psa_crypto_cipher.c:552

Arguments

Argument

Description

operation

Active cipher operation.

output

Buffer where the output is to be written.

output_size

Size of the \p output buffer in bytes.

output_length

On success, the number of bytes that make up the returned output.

Return value

#PSA_SUCCESS \emptydescription #PSA_ERROR_INVALID_ARGUMENT The total input size passed to this operation is not valid for this particular algorithm. For example, the algorithm is a based on block cipher and requires a whole number of blocks, but the total input size is not a multiple of the block size. #PSA_ERROR_INVALID_PADDING This is a decryption operation for an algorithm that includes padding, and the ciphertext does not contain valid padding. #PSA_ERROR_BUFFER_TOO_SMALL The size of the \p output buffer is too small. #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription

Notes

The signature of this function is that of a PSA driver cipher_finish entry point. This function behaves as a cipher_finish entry point as defined in the PSA driver interface specification for transparent drivers.