我正在查看 GnuPG 手册 (手册),在第 18 页发现以下章节:
chloe% gpg -edit-key chloe@cyb.org
Secret key is available.
pub 1024D/26B6AAE1 created: 1999-06-15 expires: never trust: -/u
sub 2048g/0CF8CB7A created: 1999-06-15 expires: never
sub 1792G/08224617 created: 1999-06-15 expires: 2002-06-14
sub 960D/B1F423E7 created: 1999-06-15 expires: 2002-06-14
(1) Chloe (Jester) <chloe@cyb.org>
(2) Chloe (Plebian) <chloe@tel.net>
它说:关键字pub标识公共主签名密钥,而关键字sub标识公共下级密钥。
我不理解,什么是下级密钥?有帮助吗?