On Wed 2017-01-04 16:29:50 -0500, Lou Wynn wrote: > What is going on here? Does GPG2 use some special way to mark the usage > of a subkey? How can I make it interchangeable with other programs?
the "public key algorithm" is "RSA (Encrypt or Sign)". The usage info is stored in the "key flags" subpackets in self-signatures (over uids for the primary key, and binding signatures for the subkeys). Please see: https://tools.ietf.org/html/rfc4880#section-5.2.3.21 https://tools.ietf.org/html/rfc4880#section-9.1 the "public key algorithm" values 2 (RSA Encrypt-only) and 3 (RSA sign-only) are deprecated. --dkg
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