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Remove superfluous call in PSA cipher setup

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As pointed out by Ronald. The key slot is populated using
get_key_from_slot, and after calling the driver the slot is
validated to not contain an external key, so calling
get_transparent_key is superfluous.

Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
This commit is contained in:
Steven Cooreman 2020-09-09 16:19:34 +02:00
parent 16afd3d9b4
commit b5e52f2e31
1 changed files with 0 additions and 4 deletions
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4
library/psa_crypto.c
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@ -4112,11 +4112,7 @@ static psa_status_t psa_cipher_setup( psa_cipher_operation_t *operation,
* available for the given algorithm & key. */
mbedtls_cipher_init( &operation->ctx.cipher );
status = psa_get_transparent_key( handle, &slot, usage, alg);
if( status != PSA_SUCCESS )
goto exit;
key_bits = psa_get_key_slot_bits( slot );
cipher_info = mbedtls_cipher_info_from_psa( alg, slot->attr.type, key_bits, NULL );
if( cipher_info == NULL )
{