This is like asking
I was talking to this medicine person today who was telling me about his perfectly effective zero-cost therapy. He was wondering how to market the idea as it didn't get any tracktion [sic]
in the market.* Firstly, "tech person" is strange considering this place is Hacker News, and possibly insulting.
* "Unbreakable" is unbelievable.
* "Crypto" is not specific enough. (Is it a symmetric cipher, asymmetric crypto, a secure hash?)
There are cryptological competitions like this [0] one (it is too late to contest now in that one). I am not an expert, but I think if you were doing your own "crypto contest" thing, you would need to ensure the winners get at least on the order of 50000$ (consider that people get thousands of dollars just on bug bounties, the money may need to replace tenure, attackers may be better funded, etc.)
[0] https://csrc.nist.gov/Projects/Lightweight-Cryptography/Roun...