Opaque drivers only have a destroy function if the key is stored in
the secure element.
Expand on how key creation works. Provide more explanations of
allocate_key in drivers for secure elements with storage. Discuss key
destruction as well.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Call the functions listed in the driver description "entry points".
It's more precise than "functions", which could also mean any C
function defined in the driver code.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Working draft of the PSA cryptography unified interface specification.
Eventually this document will be under Arm PSA architecture ownership,
but for the time being this draft is maintained in Mbed TLS.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>