On Mon, Mar 02, 2020 at 07:27:57AM -0500, James Bottomley wrote: > Modify the TPM2 key format blob output to export and import in the > ASN.1 form for TPM2 sealed object keys. For compatibility with prior > trusted keys, the importer will also accept two TPM2B quantities > representing the public and private parts of the key. However, the > export via keyctl pipe will only output the ASN.1 format. > > The benefit of the ASN.1 format is that it's a standard and thus the > exported key can be used by userspace tools (openssl_tpm2_engine, > openconnect and tpm2-tss-engine). The format includes policy > specifications, thus it gets us out of having to construct policy > handles in userspace and the format includes the parent meaning you > don't have to keep passing it in each time. > > This patch only implements basic handling for the ASN.1 format, so > keys with passwords but no policy. > > Signed-off-by: James Bottomley <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx> tpm_key (like you have tpm2_key prefix). /Jarkko
