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Convert oneshot AEAD over to multipart struct

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Multipart AEAD operation struct has to be public as it's allocated by
the caller, so to save duplication of code, switch oneshot AEAD over to
using the multipart operation struct.

Signed-off-by: Paul Elliott <paul.elliott@arm.com>
This commit is contained in:
Paul Elliott 2021-04-20 14:13:23 +01:00
parent e0f06c624c
commit 07a30c4c00
2 changed files with 31 additions and 39 deletions
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22
include/psa/crypto_struct.h
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@ -75,6 +75,8 @@ extern "C" {
#include "mbedtls/cmac.h"
#include "mbedtls/gcm.h"
#include "mbedtls/ccm.h"
#include "mbedtls/chachapoly.h"
/* Include the context definition for the compiled-in drivers for the primitive
* algorithms. */
@ -153,17 +155,27 @@ struct psa_aead_operation_s
{
psa_algorithm_t alg;
unsigned int key_set : 1;
unsigned int iv_set : 1;
uint8_t iv_size;
uint8_t block_size;
unsigned int nonce_set : 1;
uint8_t tag_length;
union
{
unsigned dummy; /* Enable easier initializing of the union. */
mbedtls_cipher_context_t cipher;
#if defined(MBEDTLS_PSA_BUILTIN_ALG_CCM)
mbedtls_ccm_context ccm;
#endif /* MBEDTLS_PSA_BUILTIN_ALG_CCM */
#if defined(MBEDTLS_PSA_BUILTIN_ALG_GCM)
mbedtls_gcm_context gcm;
#endif /* MBEDTLS_PSA_BUILTIN_ALG_GCM */
#if defined(MBEDTLS_PSA_BUILTIN_ALG_CHACHA20_POLY1305)
mbedtls_chachapoly_context chachapoly;
#endif /* MBEDTLS_PSA_BUILTIN_ALG_CHACHA20_POLY1305 */
} ctx;
};
#define PSA_AEAD_OPERATION_INIT {0, 0, 0, 0, 0, {0}}
#define PSA_AEAD_OPERATION_INIT {0, 0, 0, 0, {0}}
static inline struct psa_aead_operation_s psa_aead_operation_init( void )
{
const struct psa_aead_operation_s v = PSA_AEAD_OPERATION_INIT;