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Research: Pokemon Super Mystery Dungeon - SOS/Rescue/Thank You Research

Shubshub

Shubshub

Master of The Y
419
Posts
14
Years
    • Currently attempting to take a look at SOS/Thank You/Rescue Codes from the latest Pokemon Mystery Dungeon game and see if we can figure anything out about them, Also perhaps I'll take a look at some RAM dumps of the game I can do with my 3DS

    What I'd like from the community is for you to provide Codes they can be either SOS, Rescued or Thank You mail codes but only passwords no QR Codes please

    Click Here to Submit a Code

    Click here to view the list of Codes

    Down below I'll post findings that I discover about these codes, If and when I find something out

    For all we know they may just be encrypted with a One Time Pad which would require scouring the games code for which will take a while if it comes to that

    Lets get Researching!

    Theories (These are not 100% Confirmed)
    • SOS Codes store only ID numbers for Pokemon to be rescued
    • SOS Codes Encrypt the entire Team name
    • Rescue Codes use the SOS Code in some form to generate the Code to activate the rescue
    • It's entirely possible that the game interpets the @ symbol as the Bullseye symbol in game

    100% Confirmed
    • List of Available Letters for Rescue Passwords
    • The game has the same amount of letters for use as the other games in the series
    • Dungeon Seeds are not stored in the passwords (Layouts are different every time)
    • We have discovered something intriguing about the passwords
      It seems that a bunch of items (Completely randomly selected by the developers it seems or at least sets of items separated from the same Item Type?) are bundled into a set of groups which each have a seed attached to them that will tell the game how to generate the SOS Password so far we have discovered 2 sets of items that relate to each other I'll post them below this

    Item Identifier Location in Password
    Spoiler:
     
    Last edited:
    Shubshub

    Shubshub

    Master of The Y
    419
    Posts
    14
    Years
    • If someone could do me a favour and do the following
    Before you do it you need to have a Thank You Mail you haven't sent yet

    1. Create a Save Backup of your Super Mystery Dungeon game

    2. Send the Thank You Mail via Password/QR Code without an Item Attached

    3. Submit the Password using this Link

    4. Restore your Save Data

    5. Send the same Thank You Mail via Password/QR Code with an Item Attached

    6. Submit the Password using the same Link as above and list what item you attached as well

    7. Restore Save Data if you want

    Also if you could do it with multiple items that would be awesome! Thanks
     
    Shubshub

    Shubshub

    Master of The Y
    419
    Posts
    14
    Years
    • Bumpdate

    We have made a rather important discovery in figuring out how these passwords work
    We have cracked a small mystery on the road to a Generator, we have found out where the game stores the Item Idenfitier in the Thank You Mail Passwords and a little bit of theory which could be quite possibly true as well read the main post for more details I have updated it
     
    Shiny Quagsire

    Shiny Quagsire

    I'm Still Alive, Elsewhere
    697
    Posts
    14
    Years
    • The codes kinda remind me of base64, wonder if they do something similar to that in terms of getting raw data to inputtable ASCII. I might try to see if I can track down where in the code they actually read those out, since I got my cart dumped and decrypted.
     
    Shubshub

    Shubshub

    Master of The Y
    419
    Posts
    14
    Years
    • Shiny Quagsire said:
    The codes kinda remind me of base64, wonder if they do something similar to that in terms of getting raw data to inputtable ASCII. I might try to see if I can track down where in the code they actually read those out, since I got my cart dumped and decrypted.
    Click to expand...
    Yea that'd be great, They are a little base64ish I suppose I was actually surprised when we discovered where the Item Locations were stored after only a day of working on it, Although so far that's all we've discovered as everything else seems to change the passwords entirely Although we are working at it slowly, Been out all day today so haven't done anything on it today
     
    Shiny Quagsire

    Shiny Quagsire

    I'm Still Alive, Elsewhere
    697
    Posts
    14
    Years
    • I think I found the function used to judge the validity of SOS codes, although I'll have to investigate as to how it even checks the things. It has the strings "bad SOS len", "bad DC huff", "bad AC huff", "bad SOS" and "bad SOS component count", just taking a guess, perhaps the SOS codes are based on a huffman variant? It wouldn't be the first time I've seen custom huffman implementations in code.
     
    Shubshub

    Shubshub

    Master of The Y
    419
    Posts
    14
    Years
    • Shiny Quagsire said:
    I think I found the function used to judge the validity of SOS codes, although I'll have to investigate as to how it even checks the things. It has the strings "bad SOS len", "bad DC huff", "bad AC huff", "bad SOS" and "bad SOS component count", just taking a guess, perhaps the SOS codes are based on a huffman variant? It wouldn't be the first time I've seen custom huffman implementations in code.
    Click to expand...
    Interesting thats some rather good discovery there ^_^ Let me know if you find out anything else

    So is a Huffman Code sort of like a Binary Tree in programming?
     
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