Mbed OS Reference
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PSA cryptography module: Mbed TLS vendor extensions. More...
Go to the source code of this file.
Data Structures | |
struct | mbedtls_psa_stats_s |
Statistics about resource consumption related to the PSA keystore. More... | |
Macros | |
#define | PSA_CRYPTO_ITS_RANDOM_SEED_UID 0xFFFFFF52 |
UID for secure storage seed. More... | |
#define | PSA_KEY_TYPE_DSA_PUBLIC_KEY ((psa_key_type_t)0x4002) |
DSA public key. More... | |
#define | PSA_KEY_TYPE_DSA_KEY_PAIR ((psa_key_type_t)0x7002) |
DSA key pair (private and public key). More... | |
#define | PSA_KEY_TYPE_IS_DSA(type) (PSA_KEY_TYPE_PUBLIC_KEY_OF_KEY_PAIR(type) == PSA_KEY_TYPE_DSA_PUBLIC_KEY) |
Whether a key type is an DSA key (pair or public-only). More... | |
#define | PSA_ALG_DSA(hash_alg) (PSA_ALG_DSA_BASE | ((hash_alg) & PSA_ALG_HASH_MASK)) |
DSA signature with hashing. More... | |
#define | PSA_ALG_DETERMINISTIC_DSA(hash_alg) (PSA_ALG_DETERMINISTIC_DSA_BASE | ((hash_alg) & PSA_ALG_HASH_MASK)) |
Deterministic DSA signature with hashing. More... | |
#define | PSA_DH_FAMILY_CUSTOM ((psa_dh_family_t) 0x7e) |
Custom Diffie-Hellman group. More... | |
#define | PSA_KEY_DOMAIN_PARAMETERS_SIZE(key_type, key_bits) |
Safe output buffer size for psa_get_key_domain_parameters(). More... | |
Typedefs | |
typedef struct mbedtls_psa_stats_s | mbedtls_psa_stats_t |
Statistics about resource consumption related to the PSA keystore. More... | |
Functions | |
void | mbedtls_psa_crypto_free (void) |
Library deinitialization. More... | |
void | mbedtls_psa_get_stats (mbedtls_psa_stats_t *stats) |
Get statistics about resource consumption related to the PSA keystore. More... | |
psa_status_t | mbedtls_psa_inject_entropy (const uint8_t *seed, size_t seed_size) |
Inject an initial entropy seed for the random generator into secure storage. More... | |
psa_status_t | psa_set_key_domain_parameters (psa_key_attributes_t *attributes, psa_key_type_t type, const uint8_t *data, size_t data_length) |
Set domain parameters for a key. More... | |
psa_status_t | psa_get_key_domain_parameters (const psa_key_attributes_t *attributes, uint8_t *data, size_t data_size, size_t *data_length) |
Get domain parameters for a key. More... | |
PSA cryptography module: Mbed TLS vendor extensions.
This file is reserved for vendor-specific definitions.
Definition in file crypto_extra.h.
#define PSA_CRYPTO_ITS_RANDOM_SEED_UID 0xFFFFFF52 |
UID for secure storage seed.
Definition at line 40 of file crypto_extra.h.
typedef struct mbedtls_psa_stats_s mbedtls_psa_stats_t |
Statistics about resource consumption related to the PSA keystore.
void mbedtls_psa_crypto_free | ( | void | ) |
Library deinitialization.
This function clears all data associated with the PSA layer, including the whole key store.
This is an Mbed TLS extension.
void mbedtls_psa_get_stats | ( | mbedtls_psa_stats_t * | stats | ) |
Get statistics about resource consumption related to the PSA keystore.
psa_status_t mbedtls_psa_inject_entropy | ( | const uint8_t * | seed, |
size_t | seed_size | ||
) |
Inject an initial entropy seed for the random generator into secure storage.
This function injects data to be used as a seed for the random generator used by the PSA Crypto implementation. On devices that lack a trusted entropy source (preferably a hardware random number generator), the Mbed PSA Crypto implementation uses this value to seed its random generator.
On devices without a trusted entropy source, this function must be called exactly once in the lifetime of the device. On devices with a trusted entropy source, calling this function is optional. In all cases, this function may only be called before calling any other function in the PSA Crypto API, including psa_crypto_init().
When this function returns successfully, it populates a file in persistent storage. Once the file has been created, this function can no longer succeed.
If any error occurs, this function does not change the system state. You can call this function again after correcting the reason for the error if possible.
This is an Mbed TLS extension.
[in] | seed | Buffer containing the seed value to inject. |
[in] | seed_size | Size of the seed buffer. The size of the seed in bytes must be greater or equal to both MBEDTLS_ENTROPY_MIN_PLATFORM and MBEDTLS_ENTROPY_BLOCK_SIZE. It must be less or equal to MBEDTLS_ENTROPY_MAX_SEED_SIZE. |
PSA_SUCCESS | The seed value was injected successfully. The random generator of the PSA Crypto implementation is now ready for use. You may now call psa_crypto_init() and use the PSA Crypto implementation. |
PSA_ERROR_INVALID_ARGUMENT | seed_size is out of range. |
PSA_ERROR_STORAGE_FAILURE | There was a failure reading or writing from storage. |
PSA_ERROR_NOT_PERMITTED | The library has already been initialized. It is no longer possible to call this function. |