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19.py
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19.py
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from common import AES_CTR, randstr
from random import randint
data = '''
SSBoYXZlIG1ldCB0aGVtIGF0IGNsb3NlIG9mIGRheQ==
Q29taW5nIHdpdGggdml2aWQgZmFjZXM=
RnJvbSBjb3VudGVyIG9yIGRlc2sgYW1vbmcgZ3JleQ==
RWlnaHRlZW50aC1jZW50dXJ5IGhvdXNlcy4=
SSBoYXZlIHBhc3NlZCB3aXRoIGEgbm9kIG9mIHRoZSBoZWFk
T3IgcG9saXRlIG1lYW5pbmdsZXNzIHdvcmRzLA==
T3IgaGF2ZSBsaW5nZXJlZCBhd2hpbGUgYW5kIHNhaWQ=
UG9saXRlIG1lYW5pbmdsZXNzIHdvcmRzLA==
QW5kIHRob3VnaHQgYmVmb3JlIEkgaGFkIGRvbmU=
T2YgYSBtb2NraW5nIHRhbGUgb3IgYSBnaWJl
VG8gcGxlYXNlIGEgY29tcGFuaW9u
QXJvdW5kIHRoZSBmaXJlIGF0IHRoZSBjbHViLA==
QmVpbmcgY2VydGFpbiB0aGF0IHRoZXkgYW5kIEk=
QnV0IGxpdmVkIHdoZXJlIG1vdGxleSBpcyB3b3JuOg==
QWxsIGNoYW5nZWQsIGNoYW5nZWQgdXR0ZXJseTo=
QSB0ZXJyaWJsZSBiZWF1dHkgaXMgYm9ybi4=
VGhhdCB3b21hbidzIGRheXMgd2VyZSBzcGVudA==
SW4gaWdub3JhbnQgZ29vZCB3aWxsLA==
SGVyIG5pZ2h0cyBpbiBhcmd1bWVudA==
VW50aWwgaGVyIHZvaWNlIGdyZXcgc2hyaWxsLg==
V2hhdCB2b2ljZSBtb3JlIHN3ZWV0IHRoYW4gaGVycw==
V2hlbiB5b3VuZyBhbmQgYmVhdXRpZnVsLA==
U2hlIHJvZGUgdG8gaGFycmllcnM/
VGhpcyBtYW4gaGFkIGtlcHQgYSBzY2hvb2w=
QW5kIHJvZGUgb3VyIHdpbmdlZCBob3JzZS4=
VGhpcyBvdGhlciBoaXMgaGVscGVyIGFuZCBmcmllbmQ=
V2FzIGNvbWluZyBpbnRvIGhpcyBmb3JjZTs=
SGUgbWlnaHQgaGF2ZSB3b24gZmFtZSBpbiB0aGUgZW5kLA==
U28gc2Vuc2l0aXZlIGhpcyBuYXR1cmUgc2VlbWVkLA==
U28gZGFyaW5nIGFuZCBzd2VldCBoaXMgdGhvdWdodC4=
VGhpcyBvdGhlciBtYW4gSSBoYWQgZHJlYW1lZA==
QSBkcnVua2VuLCB2YWluLWdsb3Jpb3VzIGxvdXQu
SGUgaGFkIGRvbmUgbW9zdCBiaXR0ZXIgd3Jvbmc=
VG8gc29tZSB3aG8gYXJlIG5lYXIgbXkgaGVhcnQs
WWV0IEkgbnVtYmVyIGhpbSBpbiB0aGUgc29uZzs=
SGUsIHRvbywgaGFzIHJlc2lnbmVkIGhpcyBwYXJ0
SW4gdGhlIGNhc3VhbCBjb21lZHk7
SGUsIHRvbywgaGFzIGJlZW4gY2hhbmdlZCBpbiBoaXMgdHVybiw=
VHJhbnNmb3JtZWQgdXR0ZXJseTo=
QSB0ZXJyaWJsZSBiZWF1dHkgaXMgYm9ybi4=
'''.split()
data = [a.decode('base64') for a in data]
key = randstr(16)
nonce = randint(0, 2**64 - 1)
enc = [AES_CTR(a, key, nonce) for a in data]
print enc
print
print "I am too lazy to solve this by hand, but if you want to do so, above are the encrypted texts."
print "Here are some ideas for solving:"
print " 1. Pair them off"
print " 2. XOR them"
print " 3. Check for frequencies"
print " 4. Check for bigrams"
print " 5. Check for trigrams"
print " 6. ???"
print " 7. Profit!"