It is Nov 27, 2022 now. The environment is below:
user@domain:~$ date
Sun Nov 27 00:32:12 HKT 2022
user@domain:~$ gpg -K --keyid-format long --with-fingerprint --with-subkey-fingerprint --with-keygrip user
sec rsa4096/CCCCCCCCCCCCCCCC 2022-03-31 [C] [expires: 2022-11-30]
Key fingerprint = BBBB BBBB BBBB BBBB BBBB BBBB BBBB BBBB BBBB BBBB
Keygrip = DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
uid [ultimate] Chen LIU (first on nested) <[email protected]>
user@domain:~$ gpg --edit-key user quit
gpg (GnuPG) 2.2.12; Copyright (C) 2018 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.
Secret key is available.
sec rsa4096/CCCCCCCCCCCCCCCC
created: 2022-03-31 expires: 2022-11-30 usage: C
trust: ultimate validity: ultimate
ssb ed25519/AAAAAAAAAAAAAAAA
created: 2022-03-31 expired: 2022-04-29 usage: A
ssb ed25519/SSSSSSSSSSSSSSSS
created: 2022-03-31 expired: 2022-04-28 usage: S
ssb cv25519/EEEEEEEEEEEEEEEE
created: 2022-03-31 expired: 2022-04-27 usage: E
[ultimate] (1). Testuser (first on nested) <[email protected]>
user@domain:~$
I know in interactive mode to do as below:
user@domain:~$ gpg --edit-key email
...
gpg> key 2
gpg> expire
Changing expiration time for a subkey.
Please specify how long the key should be valid.
0 = key does not expire
<n> = key expires in n days
<n>w = key expires in n weeks
<n>m = key expires in n months
<n>y = key expires in n years
Key is valid for? (0) 3
Key expires at Wednesday, November 30, 2022 AM12:46:14 HKT
Is this correct? (y/N) y
...
gpg> save
user@domain:~$ gpg -K --keyid-format long --with-fingerprint --with-subkey-fingerprint --with-keygrip email
sec rsa4096/CCCCCCCCCCCCCCCC 2022-03-31 [C] [expires: 2022-11-30]
Key fingerprint = BBBB BBBB BBBB BBBB BBBB BBBB BBBB BBBB BBBB BBBB
Keygrip = DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
uid [ultimate] Testuser (first on nested) <[email protected]>
ssb ed25519/SSSSSSSSSSSSSSSS 2022-03-31 [S] [expires: 2022-11-29]
Key fingerprint = FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF
Keygrip = GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG
BUT How to expand the expiration of Sign subkey in shell script?
- how to get the output result of gpg --edit-key email?
- how to put "key 2", "expire", "3", "y", "save" into gpg?
While the sign subkey is not expired, it can showed in gpg -K. I can:
gpg --quick-set-expire "BBBB BBBB BBBB BBBB BBBB BBBB BBBB BBBB BBBB BBBB" 2022-11-29 "FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF"
