Calculate hashes of ssl encryption and decryption keys
Optimize the key switching mechanism to set the key only if
a different operation is performed with the context.
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
diff --git a/include/mbedtls/check_config.h b/include/mbedtls/check_config.h
index f91f6b4..5e2a661 100644
--- a/include/mbedtls/check_config.h
+++ b/include/mbedtls/check_config.h
@@ -677,6 +677,11 @@
#error "MBEDTLS_ARC4_C cannot be defined with MBEDTLS_SSL_TRANSFORM_OPTIMIZE_CIPHERS on"
#endif
+#if defined(MBEDTLS_VALIDATE_SSL_KEYS_INTEGRITY) && !defined(MBEDTLS_SSL_TRANSFORM_OPTIMIZE_CIPHERS) && \
+ defined(MBEDTLS_ARC4_C)
+#error "MBEDTLS_VALIDATE_SSL_KEYS_INTEGRITY requires MBEDTLS_SSL_TRANSFORM_OPTIMIZE_CIPHERS to be defined."
+#endif
+
#if defined(MBEDTLS_SSL_TLS_C) && (defined(MBEDTLS_SSL_PROTO_SSL3) && \
defined(MBEDTLS_SSL_PROTO_TLS1_1) && !defined(MBEDTLS_SSL_PROTO_TLS1))
#error "Illegal protocol selection"