How to Remove RPM GPG Public Key

 Public keys can be erased after importing just like packages. Here's how to
remove the CentOS GPG public key:

rpm -e <GPG public key>


[root@localhost]# rpm -qa gpg-pubkey*

gpg-pubkey-e8562897-459f07a4

[root@localhost]# rpm -e gpg-pubkey-e8562897-459f07a4

[root@localhost]# rpm -qa gpg-pubkey*

[root@localhost]#

If there are duplicates exist:
For example, Import the same key two times


[root@localhost]# rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5

[root@localhost]# rpm -qa gpg-pubkey*

gpg-pubkey-e8562897-459f07a4

[root@localhost]# rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5

[root@localhost]# rpm -qa gpg-pubkey*

gpg-pubkey-e8562897-459f07a4

gpg-pubkey-e8562897-459f07a4
Now try to remove Public Key, You will get error message like this:


[root@localhost]# rpm -e gpg-pubkey-e8562897-459f07a4

error: "gpg-pubkey-e8562897-459f07a4" specifies multiple packages

How to solve this:
Use --allmatches switch along with -e, It removes all versions of the package
which match PACKAGE_NAME(Public Key ).


[root@localhost]# rpm -e --allmatches gpg-pubkey-e8562897-459f07a4

[root@localhost]# rpm -qa gpg-pubkey*

[root@localhost]#