Hi @Roku
CLA is a “Contributor’s License Agreement.”
If this is a personal contribution, the easiest way to do this is if you create an mbed account and accept this click through agreement. Alternatively, you can find a slightly different agreement to sign here, which can be signed and returned to us, and is applicable if you don’t want to create an Mbed account or alternatively if this is a corporate contribution.
Since you already have an Mbed acount, and I am assuming this is a personal contribution, the simplest way id for you to accept the click through agreement.
Regards,
Mbed TLS Team member
Ron