NIST 800-57 compatible unattended encryption?

[Brian Minton]

On Fri, Feb 22, 2019 at 08:35:51AM +1100, gnupg at raf.org wrote:
> 
> All of it. If you look at Part 1, Section 5, pp 29-31,
> you'll see the complete list of the different types of
> cryptographic key that are considered to be part of the
> standard and hence approved:

Based on my quick skimming of the document, this is what openpgp uses
asymmetric crypto for:

>   10 Private key-transport key
>   11 Public key-transport key

From that document, the definition of key-transport key is as follows:

10. Private key-transport key: Private key-transport keys are the private keys
of asymmetric (public) key pairs that are used to decrypt keys that have been
encrypted with the corresponding public key using a public-key algorithm.
Key-transport keys are usually used to establish keys (e.g., key-wrapping
keys, data-encryption keys or MAC keys) and, optionally, other keying material
(e.g., Initialization Vectors). 

That usage (data-encryption keys) is exactly what gnupg uses to encrypt a
file.   You can go through the document and see the rest of the policies,
whether or not they apply to gnupg as implemented, but at first glance, that
is the case.

-- 
Brian Minton
brian at minton dot name https://brian.minton.name
Live long, and prosper longer!
OpenPGP fingerprint = 8213 71DD 4665 CF4F AE20  2206 0424 DC19 B678 A1A9
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