tree 936f9ea46e4df6667b84fffd363ca7d57176c2e9
parent 05d69890ee67641d0cffd30880dd82636cccb6ab
author Gilles Peskine <Gilles.Peskine@arm.com> 1529446267 +0200
committer itayzafrir <itay.zafrir@arm.com> 1536758571 +0300

psa_export_key: fix asymmetric key in larger buffer

Exporting an asymmetric key only worked if the target buffer had
exactly the right size, because psa_export_key uses
mbedtls_pk_write_key_der or mbedtls_pk_write_pubkey_der and these
functions write to the end of the buffer, which psa_export_key did not
correct for. Fix this by moving the data to the beginning of the
buffer if necessary.

Add non-regression tests.