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Remove duplicate wipe call in psa_destroy_key

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Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine 2021-06-07 23:27:54 +02:00
parent 11794b30f9
commit 2bfbb17f30
1 changed files with 5 additions and 8 deletions
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13
library/psa_crypto.c
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@ -1138,11 +1138,10 @@ psa_status_t psa_destroy_key( mbedtls_svc_key_id_t key )
/* Refuse the destruction of a read-only key (which may or may not work
* if we attempt it, depending on whether the key is merely read-only
* by policy or actually physically read-only).
* Just do the best we can, which is to wipe the copy in memory. */
status = psa_wipe_key_slot( slot );
if( status != PSA_SUCCESS )
return( status );
return( PSA_ERROR_NOT_PERMITTED );
* Just do the best we can, which is to wipe the copy in memory
* (done in this function's cleanup code). */
overall_status = PSA_ERROR_NOT_PERMITTED;
goto exit;
}
#if defined(MBEDTLS_PSA_CRYPTO_SE_C)
@ -1206,12 +1205,10 @@ psa_status_t psa_destroy_key( mbedtls_svc_key_id_t key )
}
#endif /* MBEDTLS_PSA_CRYPTO_SE_C */
#if defined(MBEDTLS_PSA_CRYPTO_SE_C)
exit:
#endif /* MBEDTLS_PSA_CRYPTO_SE_C */
status = psa_wipe_key_slot( slot );
/* Prioritize CORRUPTION_DETECTED from wiping over a storage error */
if( overall_status == PSA_SUCCESS )
if( status != PSA_SUCCESS )
overall_status = status;
return( overall_status );
}