245 lines
8.2 KiB
Markdown
245 lines
8.2 KiB
Markdown
# Encipher and Decipher nKode
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## Customer Policy
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- max nkode length: 10
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- number of keys: 6
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- properties per key: 9
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- total number of properties: 54
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## Customer Cipher
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- property key: [32025 56251 54239 48726 57043 21466 36907 63872 5185 40361 24862 17007
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15817 35928 23390 44980 24388 9693 29079 42520 27552 55989 21064 47245
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31415 33398 15649 37888 60649 19865 33780 9215 998 23952 774 36297
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56975 53701 54205 26202 57035 1589 27142 51011 41787 17416 14611 52249
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24554 2826 51850 29516 15825 40218]
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- position key: [12958 41262 53564 57128 61719 22386 19660 14119 45982]
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---
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## User Cipher
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- property key: [62675 55318 20994 6862 11923 60069 48390 49437 49481 16571 8941 56614
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10716 5617 39088 5352 303 46293 35634 37801 3265 31330 43043 35493
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381 22746 14834 21538 11121 1556 31651 46121 26370 30287 43028 991
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23653 3275 18911 25823 25799 46792 47794 37441 62612 49574 53766 19506
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22024 38690 14853 51773 46825 63850]
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- passcode key: [37275 57463 39825 1075 60548 11847 57381 15417 51401 34599]
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- combined position key: [10840 53435 61304 62480 44024 35399 25077 63411 2973]
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- mask key: [14299 50705 35900 48569 35541 57915 43280 32407 20229 24566]
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### Combined Postion Key
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```mermaid
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block-beta
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columns 2
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user_pos["user position key:\n[ 6342 29077 15940 11064 23279 56629 11577 49300 47107]"]
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customer_pos["customer position key:\n[12958 41262 53564 57128 61719 22386 19660 14119 45982]"]
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space:2
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xor(("XOR")):2
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user_pos --> xor
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customer_pos --> xor
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space:2
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comb_pos["combined position key\n[10840 53435 61304 62480 44024 35399 25077 63411 2973]"]:2
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xor --> comb_pos
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```
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## User Keypad
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- keypad:
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- user passcode indices: [26, 31, 1, 53]
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## nKode Cipher
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### Passcode Hash
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```mermaid
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block-beta
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columns 2
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cprop["customer_property_key\n[32025 56251 54239 48726 57043 21466 36907 63872 5185 40361 24862 17007
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15817 35928 23390 44980 24388 9693 29079 42520 27552 55989 21064 47245
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31415 33398 15649 37888 60649 19865 33780 9215 998 23952 774 36297
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56975 53701 54205 26202 57035 1589 27142 51011 41787 17416 14611 52249
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24554 2826 51850 29516 15825 40218]"]
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uprop["user_property_key\n[62675 55318 20994 6862 11923 60069 48390 49437 49481 16571 8941 56614
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10716 5617 39088 5352 303 46293 35634 37801 3265 31330 43043 35493
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381 22746 14834 21538 11121 1556 31651 46121 26370 30287 43028 991
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23653 3275 18911 25823 25799 46792 47794 37441 62612 49574 53766 19506
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22024 38690 14853 51773 46825 63850]"]
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space:2
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xor1(("XOR")):2
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cprop --> xor1
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uprop --> xor1
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space:2
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prop["combined_property_key\n[35274 941 33245 42136 61504 47487 11565 14493 54536 56594 17395 40777
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5141 39337 50158 47964 24171 37128 64165 13745 26465 41175 64107 12840
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31690 55980 1235 49186 51096 19341 63575 38870 25828 11231 43794 36374
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33514 56590 39522 645 47628 45309 53428 21762 22447 34222 60181 32811
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2530 39976 61583 47473 35640 25712]"]
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xor1 --> prop
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pass["user_passcode_indices\n[26, 31, 1, 53]"]
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space:2
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sel(("select\nproperties")):2
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pass --> sel
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prop --> sel
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space:2
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passcode["user passcode properties:\n[ 1235 38870 941 25712]"]:2
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sel --> passcode
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space:2
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pad["zero pad to\nmax nkode length: 10"]:2
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passcode -->pad
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space:2
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paddedpasscode["padded passcode:\n[ 1235 38870 941 25712 0 0 0 0 0 0]"]
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pad --> paddedpasscode
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passkey["passcode key:\n[37275 57463 39825 1075 60548 11847 57381 15417 51401 34599]"]
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space:2
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xor2(("XOR")):2
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passkey --> xor2
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paddedpasscode --> xor2
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space:2
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cipheredpass["ciphered passcode:\n[38216 30625 38972 24643 60548 11847 57381 15417 51401 34599]"]:2
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xor2 --> cipheredpass
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space:2
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hash(("hash")):2
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cipheredpass --> hash
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space:2
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cipheredhashed["hashed ciphered passcode:\n$2b$12$6WJQ1Ilu7fZunT61eo.0e.nN81TiuW5BYHfFrEz.jBwE4dotjOX7e"]:2
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hash --> cipheredhashed
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```
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### Mask Encipher
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```mermaid
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block-beta
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columns 3
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passcode_idx["passcode indices:\n[26, 31, 1, 53]"]
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comb_pos["combined position key:\n[10840 53435 61304 62480 44024 35399 25077 63411 2973]"]
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cust_pos["customer position key:\n[12958 41262 53564 57128 61719 22386 19660 14119 45982]"]
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space:3
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propidx(["Get Position Idx:\nmap each to element mod props_per_key"])
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passcode_idx-->propidx
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space:1
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xor1(("XOR"))
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comb_pos --> xor1
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cust_pos --> xor1
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space:3
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passcode_position_idx["passcode poition indices:\n[8, 4, 1, 8]"]
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propidx --> passcode_position_idx
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space:5
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pad1(("Pad with\nrandom indices"))
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passcode_position_idx --> pad1
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space:5
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posidx["Padded Passcode Position Indices:\n[8, 4, 1, 8, 5, 4, 0, 1, 2, 3]"]
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pad1 --> posidx
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space:1
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user_pos["user position key:\n[ 6342 29077 15940 11064 23279 56629 11577 49300 47107]"]
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xor1 --> user_pos
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space:4
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sel(("select positions"))
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user_pos --> sel
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posidx --> sel
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space:5
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passcode_pos["ordered user passcode positions:\n[47107 23279 29077 47107 56629 23279 6342 29077 15940 11064]"]
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sel --> passcode_pos
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mask_key["mask key\n[14299 50705 35900 48569 35541 57915 43280 32407 20229 24566]"]
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space:4
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xor2(("XOR"))
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mask_key --> xor2
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passcode_pos --> xor2
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space:5
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mask["enciphered mask:\n [36824 40190 64937 1466 22496 47316 45526 3842 28993 29902]"]
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xor2 --> mask
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```
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### Validate nKode
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```mermaid
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block-beta
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columns 4
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selected_keys["selected keys:\n[2, 4, 4, 4]"]
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login_keypad["login keypad:\nKey 0: [27 28 20 3 4 41 33 52 35]
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Key 1: [18 10 38 39 40 5 6 34 8]
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Key 2: [ 0 37 29 21 49 32 24 16 26]
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Key 3: [36 19 2 48 13 23 42 25 44]
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Key 4: [45 1 47 30 31 14 15 43 53]
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Key 5: [ 9 46 11 12 22 50 51 7 17]
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"]
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mask["enciphered mask:\n [36824 40190 64937 1466 22496 47316 45526 3842 28993 29902]"]
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mask_key["mask key:\n[14299 50705 35900 48569 35541 57915 43280 32407 20229 24566]"]
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space:4
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selectkeys(("select keys"))
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space:2
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xor1(("XOR"))
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mask --> xor1
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mask_key --> xor1
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selected_keys -->selectkeys
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login_keypad --> selectkeys
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space:4
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ordered_keys["ordered keys:\n[[ 0 37 29 21 49 32 24 16 26]
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[45 1 47 30 31 14 15 43 53]
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[45 1 47 30 31 14 15 43 53]
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[45 1 47 30 31 14 15 43 53]]"]
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space:1
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user_position_key["user position key:\n[ 6342 29077 15940 11064 23279 56629 11577 49300 47107]"]
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passcode_pos["ordered user passcode positions:\n[47107 23279 29077 47107 56629 23279 6342 29077 15940 11064]"]
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selectkeys --> ordered_keys
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xor1 --> passcode_pos
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space:7
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get_passcode_idxs(("recover passcode\nposition indices"))
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user_position_key --> get_passcode_idxs
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passcode_pos --> get_passcode_idxs
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space:7
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passcode_pos_idxs["padded passcode position indices:\n[8, 4, 1, 8, 5, 4, 0, 1, 2, 3]"]
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get_passcode_idxs --> passcode_pos_idxs
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space:4
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get_presumed_idxs(("recover passcode\nproperty indices"))
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ordered_keys --> get_presumed_idxs
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passcode_pos_idxs --> get_presumed_idxs
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space:7
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passcode_prop_idxs["presumed passcode property indices:\n[26, 31, 1, 53]"]
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space:1
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prop["combined_property_key\n[35274 941 33245 42136 61504 47487 11565 14493 54536 56594 17395 40777
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5141 39337 50158 47964 24171 37128 64165 13745 26465 41175 64107 12840
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31690 55980 1235 49186 51096 19341 63575 38870 25828 11231 43794 36374
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33514 56590 39522 645 47628 45309 53428 21762 22447 34222 60181 32811
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2530 39976 61583 47473 35640 25712]"]
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cipheredhashed["hashed ciphered passcode:\n$2b$12$6WJQ1Ilu7fZunT61eo.0e.nN81TiuW5BYHfFrEz.jBwE4dotjOX7e"]
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get_presumed_idxs --> passcode_pos_idxs
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get_presumed_idxs --> passcode_prop_idxs
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space:5
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sel(("select\nproperties"))
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passcode_prop_idxs --> sel
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prop --> sel
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space:7
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passcode_prop["presumed passcode properties:\n[ 1235 38870 941 25712]"]
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sel --> passcode_prop
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space:7
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cipher(("encipher"))
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passcode_prop --> cipher
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space:7
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cipheredpass["ciphered passcode:\n[38216 30625 38972 24643 60548 11847 57381 15417 51401 34599]"]
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cipher --> cipheredpass
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space:8
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comp(["compare"])
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cipheredpass --> comp
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cipheredhashed --> comp
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space:7
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suc(("valid"))
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fail(("invalid"))
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comp --> suc
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comp --> fail
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``` |