There are a few ways you can send encrypted information, but they all boil down to the same concept: Create a problem that is very difficult to solve unless you already know part of the answer. For example, I have a number that when divided by 7(a prime key in this case) has a remainder of 3. It could be 10, 17, 24, etc… We then take that number’s remainder, raise it to a power and multipy it by a large number to create a huge result. I send this result to the other party without sending my prime, along with the number I multiplied. They choose their own prime and do some more math with my result and send back the result. Since I know my prime, its simple for me to get the result but anyone watching would have to do a lot of math to get the answer.
Two excellent videos on the subject: https://youtu.be/NmM9HA2MQGI https://youtu.be/Yjrfm_oRO0w
Why wait?
https://www.theoaklandpress.com/2023/04/23/riverside-county-sheriffs-investigators-lose-60-pounds-of-meth-in-failed-drug-sting/
https://www.npr.org/2021/10/06/1043651361/oath-keepers-california-sheriff-chad-bianco-january-6-us-capitol
https://ktla.com/news/local-news/deputy-caught-with-100-pounds-of-fentanyl-was-working-for-el-chapos-cartel-report-says/amp/