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Make it possible to enable CTR_DRBG/PSA without a PSA AES driver

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Make it possible, but not officially supported, to switch the CTR_DRBG
module to PSA mode even if MBEDTLS_AES_C is defined. This is not really
useful in practice, but is convenient to test the PSA mode without setting
up drivers.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine
2024-06-20 21:47:31 +02:00
parent cd693c36fd
commit 4804847b15
4 changed files with 47 additions and 25 deletions
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8
tests/include/test/psa_crypto_helpers.h
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@ -16,6 +16,8 @@
#include <psa/crypto.h>
#endif
#include <mbedtls/ctr_drbg.h>
#if defined(MBEDTLS_PSA_CRYPTO_C)
/** Initialize the PSA Crypto subsystem. */
#define PSA_INIT() PSA_ASSERT(psa_crypto_init())
@ -430,12 +432,12 @@ uint64_t mbedtls_test_parse_binary_string(data_t *bin_string);
* This is like #PSA_DONE except it does nothing under the same conditions as
* #AES_PSA_INIT.
*/
#if defined(MBEDTLS_AES_C)
#if !defined(MBEDTLS_CTR_DRBG_USE_PSA_CRYPTO)
#define AES_PSA_INIT() ((void) 0)
#define AES_PSA_DONE() ((void) 0)
#else /* MBEDTLS_AES_C */
#else /* MBEDTLS_CTR_DRBG_USE_PSA_CRYPTO */
#define AES_PSA_INIT() PSA_INIT()
#define AES_PSA_DONE() PSA_DONE()
#endif /* MBEDTLS_AES_C */
#endif /* MBEDTLS_CTR_DRBG_USE_PSA_CRYPTO */
#endif /* PSA_CRYPTO_HELPERS_H */