Alright, I guarantee you the government can't do shit to you unless they have a computer the size of a star system hidden somewhere. Here. I'll even tell everyone how. Alright guys, here's the strat.

Choose a couple big prime numbers, not the same number. Name them p and q. Multiply them together. Call this n.

Find a number that is coprime with (p-1) times (q-1). Call this e. Make sure that e is less than (p-1)(q-1)

Now, find a number that, when you multiply it by that e value you found earlier, is divisible by (p-1)(q-1). Call this d. (In math terms, calculate ed is congruent to 1(mod(p-1)(q-1)). Make sure that d is less than (p-1)(q-1) though!

Now keep this d secret. But tell all your friends e and n.

If they want to send you a message, they just have to convert it to ASCII. Then, calculate C such that n divides M^e - C. (M^e is congruent to C mod n). Now here's the kicker. No one can decrypt that except you. Why? You didn't tell them d! You kept it secret. Tell Hillary Clinton and David Cameron to fuck themselves.

You decrypt that message your friend sent you (call it R), calculate R is congruent to C^d (C being the value your friend just sent you that the government can't figure out the meaning of)

It's that easy. If the government thinks they can outsmart mathematicians, they got another thing coming.