使用指纹认证不仅可以登录
我是在18.04并已成功启用指纹登录。 我想使用我的指纹不仅可以登录，但如果可能的话还可以：
- 当我执行
sudo命令时在终端中进行身份validation - 在Gnome中进行身份validation（即在安装应用程序时等）
- 解锁密钥环项目（这是我能找到的唯一信息，显然这个不可能）
输出grep print /etc/pam.d -R ：
/etc/pam.d/gdm-fingerprint:auth required pam_fprintd.so /etc/pam.d/gdm-fingerprint:password required pam_fprintd.so
/etc/pam.d/gdm-fingerprint内容
#%PAM-1.0 auth requisite pam_nologin.so auth required pam_succeed_if.so user != root quiet_success auth required pam_fprintd.so auth optional pam_gnome_keyring.so @include common-account # SELinux needs to be the first session rule. This ensures that any # lingering context has been cleared. Without this it is possible # that a module could execute code in the wrong domain. session [success=ok ignore=ignore module_unknown=ignore default=bad] pam_selinux.so close session required pam_loginuid.so # SELinux needs to intervene at login time to ensure that the process # starts in the proper default security context. Only sessions which are # intended to run in the user's context should be run after this. session [success=ok ignore=ignore module_unknown=ignore default=bad] pam_selinux.so open session optional pam_keyinit.so force revoke session required pam_limits.so session required pam_env.so readenv=1 session required pam_env.so readenv=1 user_readenv=1 envfile=/etc/default/locale @include common-session session optional pam_gnome_keyring.so auto_start password required pam_fprintd.so
/etc/pam.d/sudo内容
#%PAM-1.0 session required pam_env.so readenv=1 user_readenv=0 session required pam_env.so readenv=1 envfile=/etc/default/locale user_readenv=0 @include common-auth @include common-account @include common-session-noninteractive
跑
sudo pam-auth-update
并使用空格键在对话框中启用Fingerprint authentication ：
