return2ozma@lemmy.world to Technology@lemmy.worldEnglish · 7 months agoTwo students find security bug that could let millions do laundry for freewww.theverge.comexternal-linkmessage-square81fedilinkarrow-up1375arrow-down18
arrow-up1367arrow-down1external-linkTwo students find security bug that could let millions do laundry for freewww.theverge.comreturn2ozma@lemmy.world to Technology@lemmy.worldEnglish · 7 months agomessage-square81fedilink
minus-squareefstajas@lemmy.worldlinkfedilinkEnglisharrow-up2·7 months agoyou could add a random number to the encrypted data on the card and require it to always be the same or larger than the last time that card was seen, and then increment it every time the card is used.
you could add a random number to the encrypted data on the card and require it to always be the same or larger than the last time that card was seen, and then increment it every time the card is used.