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Set tag to 'impossible' value on failure to encrypt

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Signed-off-by: Paul Elliott <paul.elliott@arm.com>
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Paul Elliott 2021-05-21 18:02:33 +01:00
parent 6eb959854b
commit f47b0957ab
1 changed files with 5 additions and 0 deletions
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5
library/psa_crypto.c
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@ -3626,6 +3626,11 @@ psa_status_t psa_aead_finish( psa_aead_operation_t *operation,
exit:
/* In case the operation fails and the user fails to check for failure or
* the zero tag size, make sure the tag is set to something impossible. */
if( status != PSA_SUCCESS )
memset(tag, '!', tag_size);
psa_aead_abort( operation );
return( status );