1. List all the gpg keys

• gpg –list-key

 

2. Delete the secret key with public key = DE20DD27

• gpg –delete-secret-keys DE20DD27

 

3. Delete the public key = DE20DD27

• gpg –delete-key DE20DD27

 

4. Verify the result by listing the key again

 

Reference: Delete Gpg Key

Done =)