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I'd like to express demand for having tpm2_encodeobject available in RHEL-9
for the purpose of testing TPM2 support in gnutls.
I do understand that so far no tpm2-tools releases include it,
and I don't really expect this request to be fulfilled in the near future,
but let's have it voiced and tracked so that I at least know when it becomes available.

https://github.com/tpm2-software/tpm2-tools/commit/cd38f7cdb1f39084a99b5b3e1b340a3910225c27

Following commands seem working on RHEL-9.3.0-updates-20230606.41 with tpm2-tools-5.2-3.el9.x86_64:
# tpm2_createprimary -c primary.ctx
# tpm2_create -C primary.ctx -u key.pub -r key.priv -f pem -o pub.pem
# tpm2_encodeobject -C primary.ctx -u key.pub -r key.priv -o priv.pem
# tpm2_encodeobject -C primary.ctx -u key.pub -r key.pub -o pub.pem

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (tpm2-tools bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2023:6658