The 53 year old, known as the 'Dark Destroyer', last fought 21 years ago but says he needs to get closure from the sport.
Benn, who won world titles at two different weights, ended his career with two defeats to Ireland's Steve Collins in 1996.
He's now looking to avenge those defeats.
Speaking to Sky Sports, he said: "It's still in me and I'm doing things I have never done before. I feel in tip top condition and it's not about money.
"For me, I don't care if it's [Chris ]Eubank, I don't care if it's Steve [Collins], I just need closure and once I get closure, that's it boom. I can go back working for Jesus."
It's unclear whether the boxing authorities will give them licences to fight.
If they are granted, a bout could take place later this year.