Adds Migration guide

Commit adds a migraiton guide entry that was
missing.

Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
This commit is contained in:
Thomas Daubney 2021-06-17 09:23:41 +01:00
parent 22ecf49e9a
commit 50afb4378f

View file

@ -0,0 +1,10 @@
Remove the truncated HMAC extension
-----------------------------------
This affects all users who use the truncated HMAC extension for cryptographic
operations.
The config option `MBEDTLS_SSL_TRUNCATED_HMAC` has been removed. Users concerned
about overhead are better served by using any of the CCM-8 ciphersuites rather
than a CBC ciphersuite with truncated HMAC, and so going forward this must be
the approach taken.