sec  1024D/94EDFB9E 2010-07-11 Udi M (9446) 

Create a revocation certificate for this key? (y/N) y
Please select the reason for the revocation:
  0 = No reason specified
  1 = Key has been compromised
  2 = Key is superseded
  3 = Key is no longer used
  Q = Cancel
(Probably you want to select 1 here)
Your decision?
Enter an optional description; end it with an empty line:
> Backup
>
Reason for revocation: Key has been compromised
Backup
Is this okay? (y/N) y

You need a passphrase to unlock the secret key for
user: "Udi M (9446) "
1024-bit DSA key, ID 94EDFB9E, created 2010-07-11

Enter passphrase: