Local Transit card - DESFire EV-1

[Pilgrimsmaster]

@miststlkr

“credit card” style card, a silicone wristband, and a keyfob in hard plastic… presumably of the three, the wristband would be the easiest to work with?

Could you post some pictures? even if they are just interweb images…

Here’s my thoughts without any imagery to go on…

CARD
Hold up to light and check out the insides.
Possibly viable

SILICONE WRISTBAND
if it is made the way I think it is, there will likely be a small ABS encapsulated chip and antenna inside and the chip will bee VERY difficult to remove.
Unlikely viable

KEY FOB
Sounds similar to both my payment and transit cards
Likely viable

Check out mine and Roscos threads, there might be some useful information in there for you.

here’s mine

My Custom Public Transport Conversion Experience (Almost)

Public Transport Conversion by [image] Feasibility Throughout the world There are many and varied Public Transport Infrastructures utilising a wide range of RFID technology, fortunately for some, there are some older / less secure systems such as Mifare Classic (There are a few examples here on the Forum) and fortunately for people with access to those systems, Dangerous Things [image] have some “off the shelf options” . But, The odds are, Most Public Transport Companies will…

here’s Roscos

Good candidate for conversion? Methinks not - or perhaps yes

Amal, here’s the inside of my bus card, seen against a 1.5 kW projector shining through it. The blob on the upper right (dim. 8.1 x 5.3 mm) is a DESfire EV1, and the antenna goes all around the card (i.e. it’s not a mini card thing). [image] Does that tell you anything about the chances of converting it?

If I used a Transit card daily, I would have had mine converted (tested) and installed…