2024-06-18 22:37:32 +02:00
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# # r_podwojne = b"01001001001001000011101101101111011110"
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2024-06-18 22:04:24 +02:00
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#
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2024-06-18 22:37:32 +02:00
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# N = 8
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# # r od n
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# r1 = b"11111111"
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# r2 = b"11111111"
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# r1 = (int(r1, 2)) + (1 << N)
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# r2 = (int(r2, 2)) + (1 << N)
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# # t od 1
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# t1 = b"10001110"
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# t2 = b"10010101"
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# t1 = (int(t1, 2)) + (1 << N)
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# t2 = (int(t2, 2)) + (1 << N)
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# #
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# pdpkt_a = b"000011"
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# pdkpt_b = b"101001"
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# pdpkt_a = (int(pdpkt_a, 2)) + (1 << N)
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# pdkpt_b = (int(pdkpt_b, 2)) + (1 << N)
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#
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# def nastepny_bit(r, t):
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# rc = r
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# tc = t
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# wyn = None
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# #print(bin(rc))
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# #print(bin(tc))
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# for i in range(N):
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# bit = rc & 1
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# bit_z_t = tc & 1
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# if bit_z_t == 1:
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# if wyn == None:
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# wyn = bit
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# else:
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# wyn = wyn ^ bit
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# rc = rc >> 1
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# tc = tc >> 1
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# #print(bit)
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# #print(wyn)
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# #print(bin(rc))
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# #print(bin(tc))
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# #print("xor", bin(wyn))
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# wywalane_z_r = r & 1
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# #print("r", bin(r))
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# r = r >> 1
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# #print("podzielone", bin(r))
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# r = r - (1 << N - 1)
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# r = r + (wyn << N - 1)
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# r = r + (1 << N)
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# #print("r dodane", bin(r))
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# return r, wywalane_z_r
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#
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#
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# #r1, b = nastepny_bit(r1, t1)
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# #print(bin(r1))
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# #print(b)
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#
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#
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# def shrinking_generator(r1, r2, t1, t2,rundy=10000):
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# wyn = []
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# for i in range(rundy):
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# r1, l1 = nastepny_bit(r1, t1)
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# r2, l2 = nastepny_bit(r2, t2)
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# if l1 == 1:
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# wyn.append(l2)
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# print(l2, end="")
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# if i>0 and i%500==0:
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# print()
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# print()
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# return wyn
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#
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# wyn = shrinking_generator(r1,r2,t1,t2)
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# print(len(wyn))
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#
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# wyn = shrinking_generator(pdpkt_a,pdkpt_b,pdpkt_a,pdkpt_b)
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# print(len(wyn))
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# print(wyn)
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