42 lines
1,001 B
Python
42 lines
1,001 B
Python
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p = 196732205348849427366498732223276547339
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secret = REDACTED
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def calc_root(num, mod, n):
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f = GF(mod)
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temp = f(num)
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return temp.nth_root(n)
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def gen_v_list(primelist, p, secret):
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a = []
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for prime in primelist:
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a.append(calc_root(prime, p, secret))
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return a
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def decodeInt(i, primelist):
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pl = sorted(primelist)[::-1]
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out = ''
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for j in pl:
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if i%j == 0:
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out += '1'
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else:
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out += '0'
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return out
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def bin2asc(b):
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return hex(int(b,2)).replace('0x','').decode('hex')
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primelist = [2,3,5,7,11,13,17,19,23,29,31,37,43,47,53,59]
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message = REDACTED
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chunks = []
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for i in range(0,len(message),2):
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chunks += [message[i:i+2]]
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vlist = gen_v_list(primelist,p,secret)
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print(vlist)
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for chunk in chunks:
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binarized = bin(int(chunk.encode('hex'),16)).replace('0b','').zfill(16)[::-1] #lsb first
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enc = 1
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for bit in range(len(binarized)):
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enc *= vlist[bit]**int(binarized[bit])
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enc = enc%p
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print(enc)
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