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Create a file which contains the new public encryption key. This can be transferred to the host via scp or simply cut and pasted into a file.
In this sample case, it is stored in a file called equifax. Contents should be similar to what you see below:-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v2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=OdeH
-----END PGP PUBLIC KEY BLOCK-----Import the key:
> /usr/bin/gpg --import equifax
gpg: key 89973065 : public key "equifaxws07172019 <equifaxwspgp@equifax.com>" imported
gpg: Total number processed: 1
gpg: imported: 1 (RSA: 1)Trust the new key (Use the unique key id, in bold red font above. Each imported key will display a different id.):
> /bin/echo -e "trust\n5\ny\nq\n" | /usr/bin/gpg --batch --no-tty --command-fd 0 --edit-key 89973065
gpg (GnuPG) 2.0.14; Copyright (C) 2009 Free Software Foundation, Inc.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
pub 2048R/89973065 created: 2018-11-15 expires: 2019-07-17 usage: SC
...................trust: unknown validity: unknown
sub 2048R/97C85F31 created: 2018-11-15 expires: 2019-07-17 usage: E
[ unknown] (1). equifaxws07172019 <equifaxwspgp@equifax.com>
pub 2048R/89973065 created: 2018-11-15 expires: 2019-07-17 usage: SC
...................trust: unknown validity: unknown
sub 2048R/97C85F31 created: 2018-11-15 expires: 2019-07-17 usage: E
[ unknown] (1). equifaxws07172019 <equifaxwspgp@equifax.com>
Please decide how far you trust this user to correctly verify other users' keys
(by looking at passports, checking fingerprints from different sources, etc.)
..1 = I don't know or won't say
..2 = I do NOT trust
..3 = I trust marginally
..4 = I trust fully
..5 = I trust ultimately
..m = back to the main menu
pub 2048R/89973065 created: 2018-11-15 expires: 2019-07-17 usage: SC
...................trust: ultimate validity: unknown
sub 2048R/97C85F31 created: 2018-11-15 expires: 2019-07-17 usage: E
[ unknown] (1). equifaxws07172019 <equifaxwspgp@equifax.com>
Please note that the shown key validity is not necessarily correct
unless you restart the program.
...