add WIP p generator

rust/client/src/main.rs

@@ -58,7 +58,7 @@ fn pow_mod(num: BigUint, pow: BigUint, modulo: BigUint) -> BigUint {
 fn main() {
 
     let mut randomgen = StdRng::from_entropy();
-    let mut private_key = [0u8; 4096];
+    let mut private_key = [0u8; 256];
     randomgen.fill_bytes(&mut private_key);
     let private_key = BigUint::from_bytes_be(&private_key);