psa: Add PSA Crypto configuration
Add an option that can enable the exposure of PSA Crypto APIs from
libmbedcrypto.
diff --git a/include/mbedtls/check_config.h b/include/mbedtls/check_config.h
index 425e3ea..a41277f 100644
--- a/include/mbedtls/check_config.h
+++ b/include/mbedtls/check_config.h
@@ -496,6 +496,12 @@
#error "MBEDTLS_PLATFORM_NV_SEED_WRITE_MACRO and MBEDTLS_PLATFORM_STD_NV_SEED_WRITE cannot be defined simultaneously"
#endif
+#if defined(MBEDTLS_PSA_CRYPTO_C) && \
+ !( defined(MBEDTLS_CTR_DRBG_C) && \
+ defined(MBEDTLS_ENTROPY_C) )
+#error "MBEDTLS_PSA_CRYPTO_C defined, but not all prerequisites"
+#endif
+
#if defined(MBEDTLS_RSA_C) && ( !defined(MBEDTLS_BIGNUM_C) || \
!defined(MBEDTLS_OID_C) )
#error "MBEDTLS_RSA_C defined, but not all prerequisites"
diff --git a/include/mbedtls/config.h b/include/mbedtls/config.h
index 16ed503..0242bd8 100644
--- a/include/mbedtls/config.h
+++ b/include/mbedtls/config.h
@@ -2591,6 +2591,25 @@
#define MBEDTLS_POLY1305_C
/**
+ * \def MBEDTLS_PSA_CRYPTO_C
+ *
+ * Enable the Platform Security Architecture cryptography API.
+ *
+ * \note This option only has an effect when the build option
+ * USE_CRYPTO_SUBMODULE is also in use.
+ *
+ * \warning This feature is experimental and available on an opt-in basis only.
+ * PSA APIs are subject to change at any time. The implementation comes with
+ * less assurance and support than the rest of Mbed TLS.
+ *
+ * Module: crypto/library/psa_crypto.c
+ *
+ * Requires: MBEDTLS_CTR_DRBG_C, MBEDTLS_ENTROPY_C
+ *
+ */
+//#define MBEDTLS_PSA_CRYPTO_C
+
+/**
* \def MBEDTLS_RIPEMD160_C
*
* Enable the RIPEMD-160 hash algorithm.