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Refactor structures for pake driver support

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Signed-off-by: Przemek Stekiel <przemyslaw.stekiel@mobica.com>
This commit is contained in:
Przemek Stekiel
2022-11-22 14:00:51 +01:00
parent 03790029a6
commit d91bcb7673
3 changed files with 84 additions and 36 deletions
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45
include/psa/crypto_extra.h
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@@ -1826,14 +1826,7 @@ psa_status_t psa_pake_abort(psa_pake_operation_t *operation);
/** Returns a suitable initializer for a PAKE operation object of type
* psa_pake_operation_t.
*/
#if defined(MBEDTLS_PSA_BUILTIN_PAKE)
#define PSA_PAKE_OPERATION_INIT { PSA_ALG_NONE, 0, 0, 0, 0, \
NULL, 0, \
PSA_PAKE_ROLE_NONE, { 0 }, 0, 0, \
{ .dummy = 0 } }
#else
#define PSA_PAKE_OPERATION_INIT { PSA_ALG_NONE, 0, 0, { 0 } }
#endif
#define PSA_PAKE_OPERATION_INIT { 0, { .dummy = 0 } }
struct psa_pake_cipher_suite_s {
psa_algorithm_t algorithm;
@@ -1904,35 +1897,15 @@ static inline void psa_pake_cs_set_hash(psa_pake_cipher_suite_t *cipher_suite,
}
}
#if defined(MBEDTLS_PSA_BUILTIN_ALG_JPAKE)
#include <mbedtls/ecjpake.h>
/* Note: the format for mbedtls_ecjpake_read/write function has an extra
* length byte for each step, plus an extra 3 bytes for ECParameters in the
* server's 2nd round. */
#define MBEDTLS_PSA_PAKE_BUFFER_SIZE ((3 + 1 + 65 + 1 + 65 + 1 + 32) * 2)
#endif
struct psa_pake_operation_s {
psa_algorithm_t MBEDTLS_PRIVATE(alg);
unsigned int MBEDTLS_PRIVATE(state);
unsigned int MBEDTLS_PRIVATE(sequence);
#if defined(MBEDTLS_PSA_BUILTIN_PAKE)
unsigned int MBEDTLS_PRIVATE(input_step);
unsigned int MBEDTLS_PRIVATE(output_step);
uint8_t *MBEDTLS_PRIVATE(password);
size_t MBEDTLS_PRIVATE(password_len);
psa_pake_role_t MBEDTLS_PRIVATE(role);
uint8_t MBEDTLS_PRIVATE(buffer[MBEDTLS_PSA_PAKE_BUFFER_SIZE]);
size_t MBEDTLS_PRIVATE(buffer_length);
size_t MBEDTLS_PRIVATE(buffer_offset);
#endif
union {
#if defined(MBEDTLS_PSA_BUILTIN_ALG_JPAKE)
mbedtls_ecjpake_context ecjpake;
#endif
/* Make the union non-empty even with no supported algorithms. */
uint8_t dummy;
} MBEDTLS_PRIVATE(ctx);
/** Unique ID indicating which driver got assigned to do the
* operation. Since driver contexts are driver-specific, swapping
* drivers halfway through the operation is not supported.
* ID values are auto-generated in psa_crypto_driver_wrappers.h
* ID value zero means the context is not valid or not assigned to
* any driver (i.e. none of the driver contexts are active). */
unsigned int MBEDTLS_PRIVATE(id);
psa_driver_pake_context_t MBEDTLS_PRIVATE(ctx);
};
static inline struct psa_pake_cipher_suite_s psa_pake_cipher_suite_init(void)