def test_compress_expand(self):
# round trip compress, decompress public key
n = random.getrandbits(300)
short = key_compress(n)
backagain = key_expand(short)
# nlen = len(str(n))
# print (nlen, len(short), float(len(short))/nlen)
assert n == backagain, (n, short)
def decrypt_message(privatekey, cypher_compressed):
# try to decrypt message
cypher_int = ' '.join(str(key_expand(c)) for c in cypher_compressed.split('|')) + ' '
return decrypt(privatekey, cypher_int)