compile time warning of 128bit ctr_drbg keys and standardized warnings
a compile time print was added warning in case of 128bit ctr_drbg keys.
This was don't to avoid an actual warning in these cases
(making build with warnings as errors possible).
Additional warnings on the Changelog/headers were set to use the same phrasing
phrasing was approved by Gilles and Janos.
diff --git a/include/mbedtls/ctr_drbg.h b/include/mbedtls/ctr_drbg.h
index 5e0d1f0..f08a979 100644
--- a/include/mbedtls/ctr_drbg.h
+++ b/include/mbedtls/ctr_drbg.h
@@ -11,8 +11,8 @@
* The Mbed TLS implementation of CTR_DRBG uses AES-256 (default) or AES-128
* as the underlying block cipher.
*
- * * \warning ARC4 is considered a weak cipher and its use constitutes a
- * security risk. We recommend considering stronger ciphers instead.
+ * \warning Using 128-bit keys for CTR_DRBG limits the security of generated
+ * keys and operations that use random values generated to 128-bit security.
*/
/*
* Copyright (C) 2006-2018, Arm Limited (or its affiliates), All Rights Reserved