# Smart Wallets

Scientists attempting to enter the facility are presented with with a request to enter a password along with an encoded string

<figure><img src="/files/xKcEBUyEH0QthjAuP1hI" alt=""><figcaption><p>The system is locked out</p></figcaption></figure>

Each scientist was determined to recieve 1 of 10 unique strings from the system.  These strings were identified to begin with the numbers 0-9 indicating and order to collect them in.

| Unique Strings                                 |
| ---------------------------------------------- |
| **0x0**517130f09050c120816030e1204090710011603 |
| **0x1**009010e12160a091d01181b081f150b0a151114 |
| **0x2**e171d1e1b121d081e151d101d10161e1c190e03 |
| **0x3**a060e0d1a0d0e1c1f161e1e0e1d0a0e1a15000e |
| **0x4**c1c1f1b0b1e101e0e0b0c1d1b0e1d0f1d0c1a1f |
| **0x5**e001e0a100f1c000a0e0A010A1d0D1C0e1a1d1f |
| **0x6**31c000c0f000e1e00000d131c091e0a050d0e1a |
| **0x7**51a0d101a0c080d111e001810011010171d0d0c |
| **0x8**91d16040c1e1203050a15030e161d0e05001300 |
| **0x9**50a15071e050611171d160713171a02120e1207 |

Every odd position after this was given as only the numbers 0 or 1, leading to a binary encoding of those columns.

<figure><img src="/files/Wm7cPKqtcwUzHCqAI0Wh" alt=""><figcaption><p>Odd Columns Highlighted</p></figcaption></figure>

These columns could be broken up into two sets of 5 digits each, with each set of 5 being 5-bit encodings of the letters A-Z. (00001 = 1 = A, 11010 = 26 = Z).  This leads to the message **UNUSED NUMBERS IN EVEN COLUMNS MOD TWENTY SIX**

<table><thead><tr><th width="278" align="center">First 5</th><th width="112" align="center">Letter</th><th width="262" align="center">Second 5</th><th align="center">Letter</th></tr></thead><tbody><tr><td align="center">10101</td><td align="center">U</td><td align="center">01110</td><td align="center">N</td></tr><tr><td align="center">10101</td><td align="center">U</td><td align="center">10011</td><td align="center">S</td></tr><tr><td align="center">00101</td><td align="center">E</td><td align="center">00100</td><td align="center">D</td></tr><tr><td align="center">01110</td><td align="center">N</td><td align="center">10101</td><td align="center">U</td></tr><tr><td align="center">01101</td><td align="center">M</td><td align="center">00010</td><td align="center">B</td></tr><tr><td align="center">00101</td><td align="center">E</td><td align="center">10010</td><td align="center">R</td></tr><tr><td align="center">10011</td><td align="center">S</td><td align="center">01001</td><td align="center">I</td></tr><tr><td align="center">01110</td><td align="center">N</td><td align="center">00101</td><td align="center">E</td></tr><tr><td align="center">10110</td><td align="center">V</td><td align="center">00101</td><td align="center">E</td></tr><tr><td align="center">01110</td><td align="center">N</td><td align="center">00011</td><td align="center">C</td></tr><tr><td align="center">01111</td><td align="center">O</td><td align="center">01100</td><td align="center">L</td></tr><tr><td align="center">10101</td><td align="center">U</td><td align="center">01101</td><td align="center">M</td></tr><tr><td align="center">01110</td><td align="center">N</td><td align="center">10011</td><td align="center">S</td></tr><tr><td align="center">01101</td><td align="center">M</td><td align="center">01111</td><td align="center">O</td></tr><tr><td align="center">00100</td><td align="center">D</td><td align="center">10100</td><td align="center">T</td></tr><tr><td align="center">10111</td><td align="center">W</td><td align="center">00101</td><td align="center">E</td></tr><tr><td align="center">01110</td><td align="center">N</td><td align="center">10100</td><td align="center">T</td></tr><tr><td align="center">11001</td><td align="center">Y</td><td align="center">10011</td><td align="center">S</td></tr><tr><td align="center">01001</td><td align="center">I</td><td align="center">11000</td><td align="center">X</td></tr></tbody></table>

These instructions lead to focus on the remaining even columns.  Looking at each reveals a set of hex letters that contain just the number 0 sandwiched by a set of numbers.

<figure><img src="/files/NOpfD2NQyWq2DyClvw4L" alt=""><figcaption><p>The odd columns</p></figcaption></figure>

Focusing on the strings of letters first reveals words where the number 0 has replaced a single letter in the word (ex: **0**eace > **P**eace).  Completing this reveals the message **PINKY AND THE BLANK FIVE**, a crossword clue of *Pinky and the \_\_\_\_\_\_ (5)* or **BRAIN**.

| **P**eace    |
| ------------ |
| c**I**cada   |
| defe**N**d   |
| feedbac**K** |
| bab**Y**face |
| def**A**ce   |
| cade**N**ce  |
| ce**D**ed    |
| defea**T**   |
| be**H**ead   |
| decad**E**   |
| eb**B**ed    |
| debac**L**e  |
| f**A**ded    |
| adde**N**da  |
| beefca**K**e |
| **F**acade   |
| cadd**I**e   |
| e**V**aded   |
| effac**E**   |

With the letters removed, this just leaves a set of numbers in each column.  Using the earlier hint of *UNUSED NUMBERS IN EVEN COLUMNS MOD TWENTY SIX,* each remaining number can have a mod 26 calculation completed on it to leave a number 0-25. A mod operation divides the number by 26 and returns the remainder. ie. 28 mod 26 = 2 as 28 can be divided by 26 once, with 2 left over (28-26x1 = 2).  Completing this operation for all the numbers and converting the numbers to letters using A1Z26 gives the phrase **ITS UNIT IS THE WATT FIVE**, a crossword clue of *It's unit is the Watt (5)* or **POWER**.

<table><thead><tr><th width="423.3333333333333">Original</th><th align="center">Output</th><th align="center">Letter</th></tr></thead><tbody><tr><td>53595 % 26</td><td align="center">9</td><td align="center">I</td></tr><tr><td>7976 % 26</td><td align="center">20</td><td align="center">T</td></tr><tr><td>3165 % 26</td><td align="center">19</td><td align="center">S</td></tr><tr><td>47 % 26</td><td align="center">21</td><td align="center">U</td></tr><tr><td>92 % 26</td><td align="center">14</td><td align="center">N</td></tr><tr><td>5625 % 26</td><td align="center">9</td><td align="center">I</td></tr><tr><td>826 % 26</td><td align="center">20</td><td align="center">T</td></tr><tr><td>29831 % 26</td><td align="center">9</td><td align="center">I</td></tr><tr><td>8157 % 26</td><td align="center">19</td><td align="center">S</td></tr><tr><td>6156 % 26</td><td align="center">20</td><td align="center">T</td></tr><tr><td>3856 % 26</td><td align="center">8</td><td align="center">H</td></tr><tr><td>13837 % 26</td><td align="center">5</td><td align="center">E</td></tr><tr><td>283 % 26</td><td align="center">23</td><td align="center">W</td></tr><tr><td>49167 % 26</td><td align="center">1</td><td align="center">A</td></tr><tr><td>956 % 26</td><td align="center">20</td><td align="center">T</td></tr><tr><td>72 % 26</td><td align="center">20</td><td align="center">T</td></tr><tr><td>5752 % 26</td><td align="center">6</td><td align="center">F</td></tr><tr><td>1595 % 26</td><td align="center">9</td><td align="center">I</td></tr><tr><td>6132 % 26</td><td align="center">22</td><td align="center">V</td></tr><tr><td>3437 % 26</td><td align="center">5</td><td align="center">E</td></tr></tbody></table>

The final password of **BRAIN POWER** was first enter by the Lab, where they secured 6 of the files about the Megas, leaving The Path to secure 2.


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