Brice Colombier / CASCADE

Commit fca6943a7dfa23c5eff5c9f6bee4a31513ccee77

Authored by Brice Colombier about 3 years ago

Exists in master

Clean imports

Showing 8 changed files with 40 additions and 39 deletions

binary_par.py
cascade.py
flatten.py
flip_bits.py
get_parities_from_indices.py
parity.py
split.py
swap_blocks.py

...	...	@@ -2,12 +2,12 @@
2	2	# Laboratoire Hubert Curien
3	3	# 42000 Saint-Etienne - France
4	4	# Contact: b.colombier@univ-st-etienne.fr
5		-# Project: Demonstrator
	5	+# Project: CASCADE
6	6	# File: binary_par.py
7	7	# Date : 2016-10-12
8	8
9		-import parity as par
10		-import get_parities_from_indices as gpfi
	9	+from parity import parity
	10	+from get_parities_from_indices import get_parities_from_indices
11	11
12	12
13	13	def binary_par(reference_response, blocks_to_correct, response_on_board):
14	14
...	...	@@ -27,10 +27,10 @@
27	27	blocks_to_correct_first_half = [x[:int(len(x)/2)] for x in blocks_to_correct]
28	28	blocks_return = []
29	29	ref_rep = []
30		- parities = gpfi.get_parities_from_indices(blocks_to_correct_first_half, response_on_board)
	30	+ parities = get_parities_from_indices(blocks_to_correct_first_half, response_on_board)
31	31	if len(blocks_to_correct[0]) > 2:
32	32	for i, j in enumerate(parities):
33		- if par.parity(reference_response[i][:block_size/2], j):
	33	+ if parity(reference_response[i][:block_size/2], j):
34	34	# Error is in the first half of the block
35	35	blocks_return.append(blocks_to_correct[i][:block_size/2])
36	36	ref_rep.append(reference_response[i][:block_size/2])

...	...	@@ -2,18 +2,18 @@
2	2	# Laboratoire Hubert Curien
3	3	# 42000 Saint-Etienne - France
4	4	# Contact: b.colombier@univ-st-etienne.fr
5		-# Project: Demonstrator
	5	+# Project: CASCADE
6	6	# File: cascade.py
7	7	# Date : 2016-10-12
8	8
9		-import binary_par as bi_par
10		-import parity as par
11		-import split as split
12		-import get_parities_from_indices as gpfi
13		-import flip_bits as fb
14		-import flatten as fl
15		-import random as rd
16		-import swap_blocks as sb
	9	+from binary_par import binary_par
	10	+from parity import parity
	11	+from split import split
	12	+from get_parities_from_indices import get_parities_from_indices
	13	+from flip_bits import flip_bits
	14	+from flatten import flatten
	15	+from random import shuffle
	16	+from swap_blocks import swap_blocks
17	17
18	18
19	19	def cascade(reference_response, error_rate, nb_passes, response_on_board, initial_block_size=0):
20	20
21	21
...	...	@@ -50,18 +50,18 @@
50	50	print "Pass :", passe, ", block size", block_size
51	51	reference_response_indexed = zip(indices, reference_response)
52	52	if passe > 0:
53		- rd.shuffle(reference_response_indexed)
	53	+ shuffle(reference_response_indexed)
54	54	indices, reference_response = [list(i) for i in zip(*reference_response_indexed)]
55	55
56		- split.split(reference_response, block_size)
57		- split.split(indices, block_size)
58		- parities = gpfi.get_parities_from_indices(indices, response_on_board)
	56	+ split(reference_response, block_size)
	57	+ split(indices, block_size)
	58	+ parities = get_parities_from_indices(indices, response_on_board)
59	59	blocks_to_correct = []
60	60	reference_response_to_correct = []
61	61	for block_index, (reference_response_block, block_parity) in enumerate(zip(reference_response, parities)):
62	62	# Identify the blocks to correct with BINARY
63	63	# They have an odd relative parity
64		- if par.parity(reference_response_block, block_parity):
	64	+ if parity(reference_response_block, block_parity):
65	65	if passe > 0:
66	66	odd_parity_blocks.append(indices[block_index])
67	67	reference_response_to_correct.append(reference_response_block)
68	68
69	69
70	70
71	71
...	...	@@ -72,20 +72,20 @@
72	72	if blocks_to_correct:
73	73	# Narrow down to single bit errors
74	74	while len(blocks_to_correct[0]) > 2:
75		- reference_response_to_correct, blocks_to_correct = bi_par.binary_par(reference_response_to_correct, blocks_to_correct, response_on_board)
	75	+ reference_response_to_correct, blocks_to_correct = binary_par(reference_response_to_correct, blocks_to_correct, response_on_board)
76	76	# Final BINARY execution where single PUF bits are queried from the board
77		- _, indices_to_flip = bi_par.binary_par(reference_response_to_correct, blocks_to_correct, response_on_board)
	77	+ _, indices_to_flip = binary_par(reference_response_to_correct, blocks_to_correct, response_on_board)
78	78	if passe > 0:
79	79	for index_to_flip in indices_to_flip:
80	80	# Move blocks from one group to the other if they contain the bit to flip
81		- sb.swap_blocks(even_parity_blocks, odd_parity_blocks, index_to_flip, block_size_increased, block_size)
	81	+ swap_blocks(even_parity_blocks, odd_parity_blocks, index_to_flip, block_size_increased, block_size)
82	82	else:
83	83	even_parity_blocks.extend(indices)
84		- indices = fl.flatten(indices)
85		- reference_response = fl.flatten(reference_response)
	84	+ indices = flatten(indices)
	85	+ reference_response = flatten(reference_response)
86	86	if blocks_to_correct:
87	87	# Error correction step
88		- fb.flip_bits(reference_response, indices_to_flip, indices)
	88	+ flip_bits(reference_response, indices_to_flip, indices)
89	89	print str(len(indices_to_flip)), "errors corrected before backtracking"
90	90	indices_to_flip = []
91	91	blocks_to_correct = []
92	92
93	93
94	94
...	...	@@ -96,14 +96,14 @@
96	96	block_to_correct = min(odd_parity_blocks, key=len) # Get the smallest block
97	97	reference_response_block = [reference_response[indices.index(x)] for x in block_to_correct]
98	98	while len(block_to_correct) > 2:
99		- [reference_response_block], [block_to_correct] = bi_par.binary_par([reference_response_block], [block_to_correct], response_on_board)
	99	+ [reference_response_block], [block_to_correct] = binary_par([reference_response_block], [block_to_correct], response_on_board)
100	100	# Final BINARY execution where single PUF bits are queried from the board
101		- _, backtracked_pos = bi_par.binary_par([reference_response_block], [block_to_correct], response_on_board)
	101	+ _, backtracked_pos = binary_par([reference_response_block], [block_to_correct], response_on_board)
102	102	# backtracked_pos = bi.binary(reference_response_block, block_to_correct, response_on_board)
103		- fb.flip_bits(reference_response, backtracked_pos, indices)
	103	+ flip_bits(reference_response, backtracked_pos, indices)
104	104	print "One more error corrected during backtracking"
105	105	# Move blocks from one group to the other if they contain the bit to flip
106		- sb.swap_blocks(even_parity_blocks, odd_parity_blocks, backtracked_pos[0])
	106	+ swap_blocks(even_parity_blocks, odd_parity_blocks, backtracked_pos[0])
107	107	if [x for x in even_parity_blocks if x in odd_parity_blocks]:
108	108	raise ValueError("Blocks are simultaneously in the even and odd group")
109	109	# Un-shuffle

...	...	@@ -2,11 +2,11 @@
2	2	# Laboratoire Hubert Curien
3	3	# 42000 Saint-Etienne - France
4	4	# Contact: b.colombier@univ-st-etienne.fr
5		-# Project: Demonstrator
	5	+# Project: CASCADE
6	6	# File: flatten.py
7	7	# Date : 2016-10-12
8	8
9		-import itertools as it
	9	+from itertools import chain
10	10
11	11
12	12	def flatten(liste):
13	13
...	...	@@ -17,6 +17,9 @@
17	17	[1, 2, 3, 4]
18	18	"""
19	19
20		- liste = list(it.chain.from_iterable(liste))
	20	+ liste = list(chain.from_iterable(liste))
21	21	return liste
	22	+
	23	+if __name__ == "__main__":
	24	+ print flatten([[0, 1, 2, 3], [4, 5, 6, 7]])

...	...	@@ -2,7 +2,7 @@
2	2	# Laboratoire Hubert Curien
3	3	# 42000 Saint-Etienne - France
4	4	# Contact: b.colombier@univ-st-etienne.fr
5		-# Project: Demonstrator
	5	+# Project: CASCADE
6	6	# File: flip_bits.py
7	7	# Date : 2016-10-12
8	8

...	...	@@ -2,11 +2,9 @@
2	2	# Laboratoire Hubert Curien
3	3	# 42000 Saint-Etienne - France
4	4	# Contact: b.colombier@univ-st-etienne.fr
5		-# Project: Demonstrator
	5	+# Project: CASCADE
6	6	# File: get_parities_from_indices.py
7	7	# Date : 2016-10-12
8		-
9		-import Tkinter
10	8
11	9	def get_parities_from_indices(indices, response_on_board):
12	10

...	...	@@ -2,7 +2,7 @@
2	2	# Laboratoire Hubert Curien
3	3	# 42000 Saint-Etienne - France
4	4	# Contact: b.colombier@univ-st-etienne.fr
5		-# Project: Demonstrator
	5	+# Project: CASCADE
6	6	# File: parity.py
7	7	# Date : 2016-10-12
8	8

...	...	@@ -2,7 +2,7 @@
2	2	# Laboratoire Hubert Curien
3	3	# 42000 Saint-Etienne - France
4	4	# Contact: b.colombier@univ-st-etienne.fr
5		-# Project: Demonstrator
	5	+# Project: CASCADE
6	6	# File: split.py
7	7	# Date : 2016-10-12
8	8

...	...	@@ -2,7 +2,7 @@
2	2	# Laboratoire Hubert Curien
3	3	# 42000 Saint-Etienne - France
4	4	# Contact: b.colombier@univ-st-etienne.fr
5		-# Project: Demonstrator
	5	+# Project: CASCADE
6	6	# File: swap_blocks.py
7	7	# Date : 2016-10-12
8	8