import hashlib #for signatures
import math
import Crypto.Random.random as rand
import Keccak #cn_fast_hash
import mnemonic #making 25 word mnemonic to remember your keys
import binascii #conversion between hex, int, and binary. Also for the crc32 thing
import ed25519 #Bernsteins python ed25519 code from cr.yp.to
import zlib