之前 GPG UID 名称都是用的 Scvoet，也就是我的用户名。前段时间将各个平台的昵称都改成了我的英文名 Percy，今天将 GPG 的 UID 名称也一起改为我的英文名。
命令所返回的信息有所删减，删去了大部分不必要的确认环节和密钥列表展示。
打开命令行工具，输入 UID 所关联的电子邮箱。
> gpg --edit-key [email protected]gpg (GnuPG) 2.2.23; Copyright (C) 2020 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 rsa3072/B42805AC703F532A
created: 2021-02-25 expires: 2023-02-25 usage: SC
trust: ultimate validity: ultimate
ssb rsa3072/8EA8D7910D16C163
created: 2021-02-25 expires: 2023-02-25 usage: E
[ultimate] (1). Scvoet <[email protected]>先添加一个新的 UID
gpg> adduid中间会出现要求你依次填写 UID 的相关信息，只需输入新的名称，其他信息与旧 UID 保持一致即可。
Real name: Percy
Email address: [email protected]
Comment:
You selected this USER-ID:
"Percy <[email protected]>"完成后确认信息，确认后会要求你输入证书对应的密码句（passphrase）。
Change (N)ame, (C)omment, (E)mail or (O)kay/(Q)uit? 新的 UID 出现了。
sec rsa3072/B42805AC703F532A
created: 2021-02-25 expires: 2023-02-25 usage: SC
trust: ultimate validity: ultimate
ssb rsa3072/8EA8D7910D16C163
created: 2021-02-25 expires: 2023-02-25 usage: E
[ultimate] (1). Scvoet <[email protected]>
[ unknown] (2)* Percy <[email protected]>先提升新 UID 的信任等级，因为生成后就已经选中了，所以我们不需要先选择，直接进行操作即可。
gpg> trustPlease 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
Your decision?一般情况下，选择 5 完全信任即可，稍后还会有确认环节。
现在选中旧的 UID。
gpg> uid 1选中后数字旁边将会出现 * 号注明。
sec rsa3072/B42805AC703F532A
created: 2021-02-25 expires: 2023-02-25 usage: SC
trust: ultimate validity: ultimate
ssb rsa3072/8EA8D7910D16C163
created: 2021-02-25 expires: 2023-02-25 usage: E
[ultimate] (1) Scvoet <[email protected]>
[ unknown] (2)* Percy <[email protected]>删除它，依旧有确认环节。
gpg> deluid最后保存改名就完成了。
gpg> save