def test_function(self): # Test all possible operations up to 8 bits for l in xrange(2, 9): space = [[0, 1] for _ in xrange(0, l)] it1 = itertools.product(*space) it2 = itertools.product(*space) for x in it1: for y in it2: c = bitwise.bitwise_and_circuit(l) n1 = int(''.join(map(str, x)), 2) n2 = int(''.join(map(str, y)), 2) source_c = sources.digital_source_circuit(x + y) circuit.connect_circuits(source_c, c, {i: i for i in xrange(0, 2 * l)}) result = int(''.join(map(str, c.evaluate())), 2) self.assertEqual(n1 & n2, result)
def block_operation(chunk, h0, h1, h2, h3, h4, rounds=80): """ Returns (h0, h1, h2, h3, h4), the h-constants that result from running the SHA-1 algorithm on one block. """ a, b, c, d, e = h0, h1, h2, h3, h4 w = create_words(chunk, rounds) # Main loop here for i in xrange(0, rounds): if 0 <= i <= 19: # f = (b and c) or ((not b) and d) b_and_c = bitwise_and_circuit(32) connect_circuits(b, b_and_c, {x: x for x in xrange(0, 32)}) connect_circuits(c, b_and_c, {x: x + 32 for x in xrange(0, 32)}) not_b = bitwise_not_circuit(32) connect_circuits(b, not_b, {x: x for x in xrange(0, 32)}) not_b_and_d = bitwise_and_circuit(32) connect_circuits(not_b, not_b_and_d, {x: x for x in xrange(0, 32)}) connect_circuits(d, not_b_and_d, {x: x + 32 for x in xrange(0, 32)}) f = bitwise_or_circuit(32) connect_circuits(b_and_c, f, {x: x for x in xrange(0, 32)}) connect_circuits(not_b_and_d, f, {x: x + 32 for x in xrange(0, 32)}) k = digital_source_int_circuit(0x5A827999, 32) elif 20 <= i <= 39: # f = b xor c xor d b_xor_c = bitwise_xor_circuit(32) connect_circuits(b, b_xor_c, {x: x for x in xrange(0, 32)}) connect_circuits(c, b_xor_c, {x: x + 32 for x in xrange(0, 32)}) f = bitwise_xor_circuit(32) connect_circuits(b_xor_c, f, {x: x for x in xrange(0, 32)}) connect_circuits(d, f, {x: x + 32 for x in xrange(0, 32)}) k = digital_source_int_circuit(0x6ED9EBA1, 32) elif 40 <= i <= 59: # f = (b and c) or (b and d) or (c and d) b_and_c = bitwise_and_circuit(32) connect_circuits(b, b_and_c, {x: x for x in xrange(0, 32)}) connect_circuits(c, b_and_c, {x: x + 32 for x in xrange(0, 32)}) b_and_d = bitwise_and_circuit(32) connect_circuits(b, b_and_d, {x: x for x in xrange(0, 32)}) connect_circuits(d, b_and_d, {x: x + 32 for x in xrange(0, 32)}) c_and_d = bitwise_and_circuit(32) connect_circuits(c, c_and_d, {x: x for x in xrange(0, 32)}) connect_circuits(d, c_and_d, {x: x + 32 for x in xrange(0, 32)}) bnc_or_bnd = bitwise_or_circuit(32) connect_circuits(b_and_c, bnc_or_bnd, {x: x for x in xrange(0, 32)}) connect_circuits(b_and_d, bnc_or_bnd, {x: x + 32 for x in xrange(0, 32)}) f = bitwise_or_circuit(32) connect_circuits(bnc_or_bnd, f, {x: x for x in xrange(0, 32)}) connect_circuits(c_and_d, f, {x: x + 32 for x in xrange(0, 32)}) k = digital_source_int_circuit(0x8F1BBCDC, 32) elif 60 <= i <= 79: # f = b xor c xor d b_xor_c = bitwise_xor_circuit(32) connect_circuits(b, b_xor_c, {x: x for x in xrange(0, 32)}) connect_circuits(c, b_xor_c, {x: x + 32 for x in xrange(0, 32)}) f = bitwise_xor_circuit(32) connect_circuits(b_xor_c, f, {x: x for x in xrange(0, 32)}) connect_circuits(d, f, {x: x + 32 for x in xrange(0, 32)}) k = digital_source_int_circuit(0xCA62C1D6, 32) else: raise Exception("Invalid word index in main loop!") # (a leftrotate 5) + f temp = ripple_adder_no_carry(32) connect_circuits(a, temp, {x: x - 5 for x in xrange(5, 32)}) connect_circuits(a, temp, {x: x + 27 for x in xrange(0, 5)}) connect_circuits(f, temp, {x: x + 32 for x in xrange(0, 32)}) # result + e temp2 = ripple_adder_no_carry(32) connect_circuits(temp, temp2, {x: x for x in xrange(0, 32)}) connect_circuits(e, temp2, {x: x + 32 for x in xrange(0, 32)}) # result + k temp = ripple_adder_no_carry(32) connect_circuits(temp2, temp, {x: x for x in xrange(0, 32)}) connect_circuits(k, temp, {x: x + 32 for x in xrange(0, 32)}) # result + w[i] temp2 = ripple_adder_no_carry(32) connect_circuits(temp, temp2, {x: x for x in xrange(0, 32)}) connect_circuits(w[i][0], temp2, {x: y for (x, y) in izip(w[i][1], xrange(32, 64))}) # temp = (a leftrotate 5) + f + e + k + w[i] temp = temp2 e = d d = c c = left_rotate(b, 30) b = a a = temp h0_add = ripple_adder_no_carry(32) connect_circuits(h0, h0_add, {i: i for i in xrange(0, 32)}) connect_circuits(a, h0_add, {i: i + 32 for i in xrange(0, 32)}) h1_add = ripple_adder_no_carry(32) connect_circuits(h1, h1_add, {i: i for i in xrange(0, 32)}) connect_circuits(b, h1_add, {i: i + 32 for i in xrange(0, 32)}) h2_add = ripple_adder_no_carry(32) connect_circuits(h2, h2_add, {i: i for i in xrange(0, 32)}) connect_circuits(c, h2_add, {i: i + 32 for i in xrange(0, 32)}) h3_add = ripple_adder_no_carry(32) connect_circuits(h3, h3_add, {i: i for i in xrange(0, 32)}) connect_circuits(d, h3_add, {i: i + 32 for i in xrange(0, 32)}) h4_add = ripple_adder_no_carry(32) connect_circuits(h4, h4_add, {i: i for i in xrange(0, 32)}) connect_circuits(e, h4_add, {i: i + 32 for i in xrange(0, 32)}) return h0_add, h1_add, h2_add, h3_add, h4_add