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   Sexy Moon (moon@shitposter.club)'s status on Saturday, 02-Sep-2023 19:22:26 JST Sexy Moon
   from when I was experimenting with smart card development
   • Haelwenn /элвэн/ :triskell:, on-lain ✔ᵛᵉʳᶦᶠᶦᵉᵈ and ロミンちゃん like this.
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     Sexy Moon (moon@shitposter.club)'s status on Saturday, 02-Sep-2023 19:25:26 JST Sexy Moon

     in reply to

     • opal hart
     @opal just get this one for 15 dollars
     
     https://www.amazon.com/gp/product/B0177O5XNA
     
     it can read and write.
   • Embed this notice
     opal hart (opal@ap.maladaptive.art)'s status on Saturday, 02-Sep-2023 19:25:28 JST opal hart

     in reply to
     @Moon how expensive are chip readers
   • Embed this notice
     Sexy Moon (moon@shitposter.club)'s status on Saturday, 02-Sep-2023 19:32:43 JST Sexy Moon

     in reply to

     • opal hart
     @opal I actually do not recommend getting into smart card development. it was really hard to find all the info needed. I have since forgotten everything because I didn't write anything down so I will probably never pick it up again.
     Haelwenn /элвэн/ :triskell: likes this.
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     Sexy Moon (moon@shitposter.club)'s status on Saturday, 02-Sep-2023 21:18:06 JST Sexy Moon

     in reply to

     • Jolly Rancher
     @not_br549 yep I was writing applets for them!
   • Embed this notice
     Jolly Rancher (not_br549@jollyville.net)'s status on Saturday, 02-Sep-2023 21:18:07 JST Jolly Rancher

     in reply to
     Interdasting.
     They have little processors in em, you know. Operating systems optimized for intermittent action...
     Sexy Moon likes this.
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     Dumb Idiot Retard (idiot@shitposter.club)'s status on Saturday, 02-Sep-2023 21:28:00 JST Dumb Idiot Retard

     in reply to
     @Moon Next time a card expires and I have an opportunity to get a custom one I know who to call.
     Sexy Moon likes this.
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     ロミンちゃん (romin@shitposter.club)'s status on Saturday, 02-Sep-2023 21:49:07 JST ロミンちゃん

     in reply to

     • Jolly Rancher
     @Moon @not_br549 did you buy a specific SC model? Been wanting to develop some stuff for them but info online is scarce.
   • Embed this notice
     Sexy Moon (moon@shitposter.club)'s status on Sunday, 03-Sep-2023 03:10:49 JST Sexy Moon

     in reply to

     • Jolly Rancher
     • ロミンちゃん
     @romin @not_br549 there's nigerian id cards that work good you can get them on ebay or amazon. I forget the code to unlock them though and don't remember how I found the code.
   • Embed this notice
     ロミンちゃん (romin@shitposter.club)'s status on Sunday, 03-Sep-2023 06:54:37 JST ロミンちゃん

     in reply to

     • Jolly Rancher
     @Moon @not_br549 I have lots of sim and bank SCs but yeah the wgole thing is really secretive. I thought sim cards ate the perfect disguise for a custom password manager / open hardware wallet to get through airport security and customs.
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     Sexy Moon (moon@shitposter.club)'s status on Sunday, 03-Sep-2023 07:00:47 JST Sexy Moon

     in reply to

     • Jolly Rancher
     • ロミンちゃん
     @romin @not_br549 there are two codes that let you modify the contents of the smartcard. one of them lets you put custom applets on if it's not locked down by the second one. unfortunately most cards you don't have the code so they're worthless.
     ロミンちゃん likes this.
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     ロミンちゃん (romin@shitposter.club)'s status on Sunday, 03-Sep-2023 07:04:05 JST ロミンちゃん

     in reply to

     • Jolly Rancher
     @Moon @not_br549 oof and obvs those codes are industry secrets.
   • Embed this notice
     Sexy Moon (moon@shitposter.club)'s status on Sunday, 03-Sep-2023 07:04:15 JST Sexy Moon

     in reply to

     • Jolly Rancher
     • ロミンちゃん
     @romin @not_br549 yes
     ロミンちゃん likes this.
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     Jolly Rancher (not_br549@jollyville.net)'s status on Sunday, 03-Sep-2023 07:15:08 JST Jolly Rancher

     in reply to

     • ロミンちゃん
     yup. we had some test cards around the lab, in which the keys were all 'A5A5A5...' or '1234567...', which are therefore worthless outside the lab.
     
     but it's going to be a problem, if you do not have a business relationship with the card vendor --
     
     at one time, I could look at the pattern in the little gold contacts and tell you who the manufacturer was, but I've forgotten most of what I ever knew about them.
     Sexy Moon and ロミンちゃん like this.
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     iceloops 🚬 :love_forever_cat: (1iceloops123@shitposter.club)'s status on Sunday, 03-Sep-2023 07:15:16 JST iceloops 🚬 :love_forever_cat:

     in reply to
     @Moon i remember this
     Sexy Moon likes this.
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     Jolly Rancher (not_br549@jollyville.net)'s status on Monday, 04-Sep-2023 01:35:05 JST Jolly Rancher

     in reply to

     • Jolly Rancher
     • ロミンちゃん
     out of curiosity, i did some research on the topic -- things have changed since i retired. for one thing, Gemalto is gone - a search gets me links to extended/legacy support, dead web pages, and etc. oh well, these companies last about as long as cicadas in August. like everything else, the tech has been taken over by China. God bless the infinite stupidity of our American overlords.
     
     and these little chip cards are in all kinds of things now, including crypto wallets. oh well, again. hotel room keys, your new car 'keyfob', all those 'smart' appliances ...
     
     if you're willing to risk something like $100K, you can probably buy a batch of (1,000? 10,000?) prototyping cards, along with their secret keys, from a vendor. (but not the manufacturer key, so...) you can put apps on the prototype cards. you can get some development tools:
     https://duckduckgo.com/?q=smartcard+prototyping+tools
     and carry on.
     
     step 3: ???
     
     and PROFIT!!!
     
     One thing you cannot do with this technology is repurpose an old SIM card, bank card, or hotel room key. This stuff is designed to be thrown away.
     Sexy Moon likes this.