These utilities are shared by t_cose and attest_token. They are are just part of test code for attestation. This is logically part of neither t_cose or attest_token so it doesn't belog in either.
Eventually it is likely to be an official part of QCBOR, but it is not complete enough for that yet. It works fine for what it is, but it is only enough for the needs of t_cose and attest_token. It needs to be more to be part of QCBOR.
So the copy here is part of Arm TF-M software and not part of QCBOR even though it is in QCBOR directory. This is a convenient place for it.
Copyright 2019, Laurence Lundblade
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