#! /usr/bin/env python from AES_128 import AES_128_CTR, gen_rand_data from binascii import a2b_base64 from random import randint key = gen_rand_data() nonce = randint(0,2**64-1) ciphertexts = [AES_128_CTR(p, key, nonce) for p in ['SSBoYXZlIG1ldCB0aGVtIGF0IGNsb3NlIG9mIGRheQ==', 'Q29taW5nIHdpdGggdml2aWQgZmFjZXM=', 'RnJvbSBjb3VudGVyIG9yIGRlc2sgYW1vbmcgZ3JleQ==', 'RWlnaHRlZW50aC1jZW50dXJ5IGhvdXNlcy4=', 'SSBoYXZlIHBhc3NlZCB3aXRoIGEgbm9kIG9mIHRoZSBoZWFk', 'T3IgcG9saXRlIG1lYW5pbmdsZXNzIHdvcmRzLA==', 'T3IgaGF2ZSBsaW5nZXJlZCBhd2hpbGUgYW5kIHNhaWQ=', 'UG9saXRlIG1lYW5pbmdsZXNzIHdvcmRzLA==', 'QW5kIHRob3VnaHQgYmVmb3JlIEkgaGFkIGRvbmU=', 'T2YgYSBtb2NraW5nIHRhbGUgb3IgYSBnaWJl', 'VG8gcGxlYXNlIGEgY29tcGFuaW9u', 'QXJvdW5kIHRoZSBmaXJlIGF0IHRoZSBjbHViLA==', 'QmVpbmcgY2VydGFpbiB0aGF0IHRoZXkgYW5kIEk=', 'QnV0IGxpdmVkIHdoZXJlIG1vdGxleSBpcyB3b3JuOg==', 'QWxsIGNoYW5nZWQsIGNoYW5nZWQgdXR0ZXJseTo=', 'QSB0ZXJyaWJsZSBiZWF1dHkgaXMgYm9ybi4=', 'VGhhdCB3b21hbidzIGRheXMgd2VyZSBzcGVudA==', 'SW4gaWdub3JhbnQgZ29vZCB3aWxsLA==', 'SGVyIG5pZ2h0cyBpbiBhcmd1bWVudA==', 'VW50aWwgaGVyIHZvaWNlIGdyZXcgc2hyaWxsLg==', 'V2hhdCB2b2ljZSBtb3JlIHN3ZWV0IHRoYW4gaGVycw==', 'V2hlbiB5b3VuZyBhbmQgYmVhdXRpZnVsLA==',
#! /usr/bin/env python
from AES_128 import gen_rand_data, AES_128_CTR, AES_128_CTR
def get_unencrypted_data():
from AES_128 import AES_128_ECB_decrypt
from binascii import a2b_base64
filename = '25.txt'
key = 'YELLOW SUBMARINE'
data = a2b_base64(''.join(l for l in open(filename)))
return AES_128_ECB_decrypt(data, key, unpad=True)
key = gen_rand_data()
nonce = 0
def get_encrypted_data():
data = get_unencrypted_data()
return AES_128_CTR(data, key, nonce)
def edit(ciphertext, offset, newtext):
data = AES_128_CTR(ciphertext, key, nonce)
d = [c for c in data]
newtext = [c for c in newtext]
d[offset:offset + len(newtext)] = newtext
data = ''.join(d)
return AES_128_CTR(data, key, nonce)
def initialize():
global ciphertexts
key = gen_rand_data()
nonce = randint(0,2**64-1)
ciphertexts = [AES_128_CTR(a2b_base64(p.strip()), key, nonce) for p in open('20.txt')]
