Keys substitution

[Filippo Valsorda]

Hi, i created a keyring a couple of years ago without any serious
intent. I kept my keys "not so secure".

Now i want to restart, without changing ID, as i am always the same
person, but revoking all from the past.
What have I to do?
Thanks a lot

------------------------------------
sec   1024D/01A82A13 2008-09-21
uid                  Filippo V <filippo at bovonesas.it>
uid                  FiloSottile (Work and spam e-mail)
<filosottile.wiki at gmail.com>
ssb   2048R/19755070 2009-07-31