diff --git a/configs/crypto-config-suite-b.h b/configs/crypto-config-suite-b.h
index 3eea061..3fec3d0 100644
--- a/configs/crypto-config-suite-b.h
+++ b/configs/crypto-config-suite-b.h
@@ -1,5 +1,5 @@
 /**
- * \file crypto-config-symmetric-only.h
+ * \file crypto-config-suite-b.h
  *
  * \brief \brief Minimal crypto configuration for
  * TLS NSA Suite B Profile (RFC 6460).
diff --git a/configs/ext/README.md b/configs/ext/README.md
index b07cbc1..f679e32 100644
--- a/configs/ext/README.md
+++ b/configs/ext/README.md
@@ -1,26 +1,22 @@
 Summary
 -------
 
-The two files:
+The file:
 
-* crypto_config_profile_medium.h
 * tfm_mbedcrypto_config_profile_medium.h
 
-are copyright The Mbed TLS Contributors, and are distributed under the license normally
+is copyright The Mbed TLS Contributors, and is distributed under the license normally
 used by Mbed TLS: a dual Apache 2.0 or GPLv2-or-later license.
 
 Background
 ----------
 
-The two files crypto_config_profile_medium.h and tfm_mbedcrypto_config_profile_medium.h
-are taken verbatim from the TF-M source code here:
+The file tfm_mbedcrypto_config_profile_medium.h was derived from the file tfm_mbedcrypto_config_profile_medium.h taken from the TF-M source code here:
 
 https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git/tree/lib/ext/mbedcrypto/mbedcrypto_config
 
-In TF-M, they are distributed under a 3-Clause BSD license, as noted at the top of the files.
+It was derived according to the Mbed TLS configuration file split that occurred as part of the Mbed TLS repository split, see  https://github.com/Mbed-TLS/mbedtls/blob/development/docs/proposed/config-split.md.
 
-In Mbed TLS, with permission from the TF-M project, they are distributed under a dual [Apache-2.0](https://spdx.org/licenses/Apache-2.0.html) OR [GPL-2.0-or-later](https://spdx.org/licenses/GPL-2.0-or-later.html) license, with copyright assigned to The Mbed TLS Contributors.
+In TF-M, the original file is distributed under a 3-Clause BSD license, as noted at the top of the file.
 
-We only retain the note at the top of the files because the intent is to take these files verbatim,
-for ease of maintenance. Currently however, they contain changes, showing how these configurations
-will need to be adapted for 4.0.
+In Mbed TLS, with permission from the TF-M project, tfm_mbedcrypto_config_profile_medium.h is distributed under a dual [Apache-2.0](https://spdx.org/licenses/Apache-2.0.html) OR [GPL-2.0-or-later](https://spdx.org/licenses/GPL-2.0-or-later.html) license, with copyright assigned to The Mbed TLS Contributors.