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Improve documentation

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This commit is contained in:
Gilles Peskine 2019-06-26 11:21:41 +02:00
parent 7a52464fba
commit c93a43bed6
1 changed files with 14 additions and 7 deletions
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21
include/psa/crypto_se_driver.h
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@ -972,8 +972,8 @@ typedef struct {
* the end of this structure.
*/
typedef struct {
/** The version of the driver model that this driver implements.
* This is a protection against linking driver binaries built against
/** The version of the driver HAL that this driver implements.
* This is a protection against loading driver binaries built against
* a different version of this specification.
* Use #PSA_DRV_SE_HAL_VERSION.
*/
@ -986,12 +986,12 @@ typedef struct {
psa_drv_se_key_derivation_t derivation;
} psa_drv_se_t;
/** The current version of the opaque driver model.
/** The current version of the secure element driver HAL.
*/
/* 0.0.0 patchlevel 5 */
#define PSA_DRV_SE_HAL_VERSION 0x00000005
/** Register an external cryptoprocessor driver.
/** Register an external cryptoprocessor (secure element) driver.
*
* This function is only intended to be used by driver code, not by
* application code. In implementations with separation between the
@ -1004,11 +1004,18 @@ typedef struct {
* implementation-defined whether this function may be called
* after psa_crypto_init().
*
* \note Implementations store metadata about keys including the lifetime
* value. Therefore, from one instantiation of the PSA Cryptography
* library to the next one, if there is a key in storage with a certain
* lifetime value, you must always register the same driver (or an
* updated version that communicates with the same secure element)
* with the same lifetime value.
*
* \param lifetime The lifetime value through which this driver will
* be exposed to applications.
* The values #PSA_KEY_LIFETIME_VOLATILE and
* #PSA_KEY_LIFETIME_PERSISTENT are reserved and
* may not be used for opaque drivers. Implementations
* may not be used for drivers. Implementations
* may reserve other values.
* \param[in] methods The method table of the driver. This structure must
* remain valid for as long as the cryptography
@ -1026,9 +1033,9 @@ typedef struct {
* \return PSA_ERROR_ALREADY_EXISTS
* There is already a registered driver for this value of \p lifetime.
* \return PSA_ERROR_INVALID_ARGUMENT
* \p lifetime is a reserved value
* \p lifetime is a reserved value.
* \return PSA_ERROR_NOT_SUPPORTED
* `methods->interface_version` is not supported by this implementation.
* `methods->hal_version` is not supported by this implementation.
* \return PSA_ERROR_INSUFFICIENT_MEMORY
* \return PSA_ERROR_NOT_PERMITTED
*/