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Add buffer copying to psa_aead_finish()

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Signed-off-by: David Horstmann <david.horstmann@arm.com>
This commit is contained in:
David Horstmann 2023-12-11 15:35:59 +00:00
parent 2914fac28a
commit 6db0e73dc4
1 changed files with 11 additions and 2 deletions
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13
library/psa_crypto.c
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@ -5192,15 +5192,21 @@ static psa_status_t psa_aead_final_checks(const psa_aead_operation_t *operation)
/* Finish encrypting a message in a multipart AEAD operation. */ /* Finish encrypting a message in a multipart AEAD operation. */
psa_status_t psa_aead_finish(psa_aead_operation_t *operation, psa_status_t psa_aead_finish(psa_aead_operation_t *operation,
uint8_t *ciphertext, uint8_t *ciphertext_external,
size_t ciphertext_size, size_t ciphertext_size,
size_t *ciphertext_length, size_t *ciphertext_length,
uint8_t *tag, uint8_t *tag_external,
size_t tag_size, size_t tag_size,
size_t *tag_length) size_t *tag_length)
{ {
psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED; psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
LOCAL_OUTPUT_DECLARE(ciphertext_external, ciphertext);
LOCAL_OUTPUT_DECLARE(tag_external, tag);
LOCAL_OUTPUT_ALLOC(ciphertext_external, ciphertext_size, ciphertext);
LOCAL_OUTPUT_ALLOC(tag_external, tag_size, tag);
*ciphertext_length = 0; *ciphertext_length = 0;
*tag_length = tag_size; *tag_length = tag_size;
@ -5231,6 +5237,9 @@ exit:
psa_aead_abort(operation); psa_aead_abort(operation);
LOCAL_OUTPUT_FREE(ciphertext_external, ciphertext);
LOCAL_OUTPUT_FREE(tag_external, tag);
return status; return status;
} }