Wiegand 26-Bit Access Control Decoder Test Cases

60 test vectors for Wiegand 26-bit protocol decoding covering valid credentials, parity corruption, and single-bit data flips across facility codes 0–255.
# example_id
scenario_type
facility_code
card_number
facility_code_bin
card_number_bin
first_12_bits
last_12_bits
expected_even_parity
expected_odd_parity
observed_even_parity
observed_odd_parity
full_26_bit_stream
parity_valid
parity_error_type
bit_flip_position
d0_pulse_count
d1_pulse_count
is_boundary_case
notes
1 1 valid 12 345 1,100 101,011,001 11,000,000 101,011,001 0 0 0 0 1.10e+20 true none 19 7 false Reference valid example
2 2 valid 45 1,024 101,101 10,000,000,000 1,011,010,000 10,000,000,000 0 0 0 0 1.01e+22 true none 21 5 false Common mid-range valid example
3 3 valid 200 65,535 11,001,000 1.11e+15 110,010,001,111 111,111,111,111 1 1 1 1 1.11e+25 true none 5 21 true Max card number
4 4 valid 0 1 0 1 0 1 0 0 0 0 10 true none 25 1 true Smallest nonzero card number
5 5 valid 255 0 11,111,111 0 111,111,110,000 0 0 1 0 1 1.11e+24 true none 17 9 true Max facility code
6 6 valid 128 32,768 10,000,000 1.00e+15 100,000,001,000 0 0 1 0 1 1.00e+24 true none 23 3 true Power-of-two boundary values
7 7 bad_even 12 345 1,100 101,011,001 11,000,000 101,011,001 0 0 1 0 1.00e+25 false even 18 8 false Same decoded fields as row 1, but even parity corrupted
8 8 bad_odd 12 345 1,100 101,011,001 11,000,000 101,011,001 0 0 0 1 1.10e+20 false odd 18 8 false Same decoded fields as row 1, but odd parity corrupted
9 9 bad_both 45 1,024 101,101 10,000,000,000 1,011,010,000 10,000,000,000 0 0 1 1 1.00e+25 false both 19 7 false Both parity bits corrupted
10 10 flip_data 69 22,222 1,000,101 101,011,011,001,110 10,001,010,101 11,011,001,110 0 0 0 0 1.00e+23 false even 6 14 12 false Single flipped data bit in first parity region
11 11 flip_data 77 22,254 1,001,101 101,011,011,101,110 10,011,010,101 11,011,101,110 0 0 0 0 1.00e+23 false odd 20 12 14 false Single flipped data bit in second parity region
12 12 flip_data 3 61,439 11 1.11e+15 111,110 111,111,111,111 0 1 0 1 1.11e+18 false even 13 8 18 false Boundary-adjacent bit flip at end of first parity region
13 13 flip_data 3 63,487 11 1.11e+15 111,111 11,111,111,111 0 1 0 1 1.11e+18 false odd 14 8 18 false Boundary-adjacent bit flip at start of second parity region
14 14 bad_odd 57 3,278 111,001 110,011,001,110 1,110,010,000 110,011,001,110 0 0 0 1 1.11e+22 false odd 14 12 false Odd parity bit intentionally corrupted
15 15 valid 125 29,256 1,111,101 111,001,001,001,000 11,111,010,111 1,001,001,000 1 0 1 0 1.01e+25 true none 13 13 false Valid credential example
16 16 bad_even 52 11,395 110,100 10,110,010,000,011 1,101,000,010 110,010,000,011 0 0 1 0 1.00e+25 false even 16 10 false Even parity bit intentionally corrupted
17 17 valid 16 3,905 10,000 111,101,000,001 100,000,000 111,101,000,001 1 1 1 1 1.00e+25 true none 17 9 false Valid credential example
18 18 bad_even 119 3,478 1,110,111 110,110,010,110 11,101,110,000 110,110,010,110 0 0 1 0 1.01e+25 false even 12 14 false Even parity bit intentionally corrupted
19 19 valid 214 28,893 11,010,110 111,000,011,011,101 110,101,100,111 11,011,101 0 1 0 1 1.10e+24 true none 11 15 false Valid credential example
20 20 bad_both 142 851 10,001,110 1,101,010,011 100,011,100,000 1,101,010,011 0 1 1 0 1.10e+25 false both 15 11 false Both parity bits intentionally corrupted
21 21 valid 81 55,392 1,010,001 1.10e+15 10,100,011,101 100,001,100,000 0 0 0 0 1.01e+23 true none 17 9 false Valid credential example
22 22 flip_data 79 20,029 1,001,111 100,111,000,111,101 10,011,110,100 111,000,111,101 1 1 1 1 1.01e+25 false even 12 10 16 false Random single-bit data corruption
23 23 valid 52 12,156 110,100 10,111,101,111,100 1,101,000,010 111,101,111,100 0 0 0 0 1.10e+22 true none 13 13 false Valid credential example
24 24 bad_even 183 45,082 10,110,111 1.01e+15 101,101,111,011 11,010 1 0 0 0 1.01e+24 false even 14 12 false Even parity bit intentionally corrupted
25 25 valid 22 60,217 10,110 1.11e+15 101,101,110 101,100,111,001 0 0 0 0 1.01e+21 true none 13 13 false Valid credential example
26 26 bad_even 193 10,328 11,000,001 10,100,001,011,000 110,000,010,010 100,001,011,000 0 1 1 1 1.11e+25 false even 16 10 false Even parity bit intentionally corrupted
27 27 bad_odd 185 25,203 10,111,001 110,001,001,110,011 101,110,010,110 1,001,110,011 1 1 1 0 1.10e+25 false odd 12 14 false Odd parity bit intentionally corrupted
28 28 bad_both 23 29,871 10,111 111,010,010,101,111 101,110,111 10,010,101,111 1 0 0 1 1.01e+21 false both 11 15 false Both parity bits intentionally corrupted
29 29 flip_data 40 32,560 101,000 111,111,100,110,000 1,010,000,111 111,100,110,000 1 0 1 0 1.00e+25 false odd 14 14 12 false Random single-bit data corruption
30 30 bad_even 142 59,429 10,001,110 1.11e+15 100,011,101,110 100,000,100,101 1 1 0 1 1.00e+24 false even 14 12 false Even parity bit intentionally corrupted
31 31 valid 186 21,319 10,111,010 101,001,101,000,111 101,110,100,101 1,101,000,111 1 1 1 1 1.10e+25 true none 11 15 false Valid credential example
32 32 bad_odd 107 34,993 1,101,011 1.00e+15 11,010,111,000 100,010,110,001 0 0 0 1 1.10e+23 false odd 14 12 false Odd parity bit intentionally corrupted
33 33 valid 36 22,431 100,100 101,011,110,011,111 1,001,000,101 11,110,011,111 0 0 0 0 1.00e+22 true none 13 13 false Valid credential example
34 34 valid 125 21,417 1,111,101 101,001,110,101,001 11,111,010,101 1,110,101,001 0 1 0 1 1.11e+23 true none 11 15 false Valid credential example
35 35 bad_odd 138 28,785 10,001,010 111,000,001,110,001 100,010,100,111 1,110,001 0 1 0 0 1.00e+24 false odd 16 10 false Odd parity bit intentionally corrupted
36 36 flip_data 28 21,829 11,100 101,010,101,000,101 111,000,101 10,101,000,101 0 0 0 0 1.11e+21 false even 12 16 10 false Random single-bit data corruption
37 37 valid 205 35,093 11,001,101 1.00e+15 110,011,011,000 100,100,010,101 0 0 0 0 1.10e+24 true none 15 11 false Valid credential example
38 38 bad_odd 161 27,869 10,100,001 110,110,011,011,101 101,000,010,110 110,011,011,101 1 1 1 0 1.10e+25 false odd 12 14 false Odd parity bit intentionally corrupted
39 39 valid 202 60,142 11,001,010 1.11e+15 110,010,101,110 101,011,101,110 1 1 1 1 1.11e+25 true none 9 17 false Valid credential example
40 40 bad_odd 71 32,325 1,000,111 111,111,001,000,101 10,001,110,111 111,001,000,101 1 1 1 0 1.01e+25 false odd 12 14 false Odd parity bit intentionally corrupted
41 41 flip_data 134 54,107 10,000,110 1.10e+15 100,001,101,101 1,101,011,011 0 1 0 1 1.00e+24 false odd 14 12 14 false Random single-bit data corruption
42 42 flip_data 177 28,746 10,110,001 111,000,001,001,010 101,100,010,111 1,001,010 0 0 0 0 1.01e+24 false even 6 16 10 false Random single-bit data corruption
43 43 bad_both 252 11,915 11,111,100 10,111,010,001,011 111,111,000,010 111,010,001,011 1 0 0 1 1.11e+24 false both 11 15 false Both parity bits intentionally corrupted
44 44 bad_even 56 20,033 111,000 100,111,001,000,001 1,110,000,100 111,001,000,001 0 0 1 0 1.00e+25 false even 16 10 false Even parity bit intentionally corrupted
45 45 valid 216 8,326 11,011,000 10,000,010,000,110 110,110,000,010 10,000,110 1 0 1 0 1.11e+25 true none 17 9 false Valid credential example
46 46 flip_data 111 32,953 1,101,111 1.00e+15 11,011,111,000 10,111,001 0 0 0 0 1.10e+23 false even 2 14 12 false Random single-bit data corruption
47 47 bad_both 58 34,973 111,010 1.00e+15 1,110,101,000 100,010,011,101 1 1 0 0 1.11e+22 false both 15 11 false Both parity bits intentionally corrupted
48 48 valid 174 14,621 10,101,110 11,100,100,011,101 101,011,100,011 100,100,011,101 1 1 1 1 1.10e+25 true none 11 15 false Valid credential example
49 49 valid 80 59,470 1,010,000 1.11e+15 10,100,001,110 100,001,001,110 1 0 1 0 1.01e+25 true none 15 11 false Valid credential example
50 50 valid 134 23,416 10,000,110 101,101,101,111,000 100,001,100,101 101,101,111,000 1 0 1 0 1.10e+25 true none 13 13 false Valid credential example
51 51 flip_data 54 38,989 110,110 1.00e+15 1,101,101,001 100,001,001,101 0 1 0 1 1.10e+22 false odd 18 14 12 false Random single-bit data corruption
52 52 valid 101 20,032 1,100,101 100,111,001,000,000 11,001,010,100 111,001,000,000 1 1 1 1 1.01e+25 true none 15 11 false Valid credential example
53 53 bad_even 82 74 1,010,010 1,001,010 10,100,100,000 1,001,010 1 0 0 0 1.01e+23 false even 20 6 false Even parity bit intentionally corrupted
54 54 valid 250 2,552 11,111,010 100,111,111,000 111,110,100,000 100,111,111,000 0 0 0 0 1.11e+24 true none 13 13 false Valid credential example
55 55 valid 185 40,306 10,111,001 1.00e+15 101,110,011,001 110,101,110,010 1 0 1 0 1.10e+25 true none 11 15 false Valid credential example
56 56 valid 123 10,322 1,111,011 10,100,001,010,010 11,110,110,010 100,001,010,010 1 1 1 1 1.01e+25 true none 13 13 false Valid credential example
57 57 flip_data 248 9,007 11,111,000 10,001,100,101,111 111,110,000,010 1,100,101,111 0 1 0 1 1.11e+24 false odd 19 12 14 false Random single-bit data corruption
58 58 bad_odd 64 16,828 1,000,000 100,000,110,111,100 10,000,000,100 110,111,100 0 1 0 0 1.00e+23 false odd 18 8 false Odd parity bit intentionally corrupted
59 59 valid 84 34,741 1,010,100 1.00e+15 10,101,001,000 11,110,110,101 0 1 0 1 1.01e+23 true none 13 13 false Valid credential example
60 60 flip_data 216 27,761 11,011,000 110,110,001,110,001 110,110,000,110 110,001,110,001 0 0 0 0 1.10e+24 false odd 25 14 12 false Random single-bit data corruption
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Patterns

7 found

Data Quality

2 found

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