Complete, document and fully use internal HMAC API
Since HMAC moved into its own compilation unit, the internal API needed
to be documented and finalized. This means no more reaching deep into
the operation structure from within the PSA Crypto core. This will make
future refactoring work easier, since internal HMAC is now opaque to the
core.
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
diff --git a/include/psa/crypto_builtin_composites.h b/include/psa/crypto_builtin_composites.h
index fd7f6f9..2fb0633 100644
--- a/include/psa/crypto_builtin_composites.h
+++ b/include/psa/crypto_builtin_composites.h
@@ -53,6 +53,8 @@
/** The HMAC part of the context. */
uint8_t opad[PSA_HMAC_MAX_HASH_BLOCK_SIZE];
} psa_hmac_internal_data;
+
+#define MBEDTLS_PSA_HMAC_OPERATION_INIT {0, {0}, {0}}
#endif /* PSA_WANT_ALG_HMAC */
#include "mbedtls/cmac.h"