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SE keys: store the slot number in the memory slot

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This commit is contained in:
Gilles Peskine 2019-07-12 23:44:37 +02:00
parent 8abe6a2d5c
commit 73167e128f
2 changed files with 23 additions and 0 deletions
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14
library/psa_crypto.c
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@ -363,6 +363,13 @@ static psa_status_t mbedtls_to_psa_error( int ret )
/* Key management */
/****************************************************************/
#if defined(MBEDTLS_PSA_CRYPTO_SE_C)
static inline int psa_key_slot_is_external( const psa_key_slot_t *slot )
{
return( psa_key_lifetime_is_external( slot->lifetime ) );
}
#endif /* MBEDTLS_PSA_CRYPTO_SE_C */
#if defined(MBEDTLS_ECP_C)
static psa_ecc_curve_t mbedtls_ecc_group_to_psa( mbedtls_ecp_group_id grpid )
{
@ -867,6 +874,13 @@ static psa_status_t psa_get_key_from_slot( psa_key_handle_t handle,
/** Wipe key data from a slot. Preserve metadata such as the policy. */
static psa_status_t psa_remove_key_data_from_memory( psa_key_slot_t *slot )
{
#if defined(MBEDTLS_PSA_CRYPTO_SE_C)
if( psa_key_slot_is_external( slot ) )
{
/* No key material to clean. */
}
else
#endif /* MBEDTLS_PSA_CRYPTO_SE_C */
if( slot->type == PSA_KEY_TYPE_NONE )
{
/* No key material to clean. */

9
library/psa_crypto_core.h
View file

@ -29,6 +29,7 @@
#endif
#include "psa/crypto.h"
#include "psa/crypto_se_driver.h"
#include "mbedtls/ecp.h"
#include "mbedtls/rsa.h"
@ -45,17 +46,25 @@ typedef struct
unsigned allocated : 1;
union
{
/* Raw-data key (key_type_is_raw_bytes() in psa_crypto.c) */
struct raw_data
{
uint8_t *data;
size_t bytes;
} raw;
#if defined(MBEDTLS_RSA_C)
/* RSA public key or key pair */
mbedtls_rsa_context *rsa;
#endif /* MBEDTLS_RSA_C */
#if defined(MBEDTLS_ECP_C)
/* EC public key or key pair */
mbedtls_ecp_keypair *ecp;
#endif /* MBEDTLS_ECP_C */
/* Any key type in a secure element */
struct se
{
psa_key_slot_number_t slot_number;
} se;
} data;
} psa_key_slot_t;