2024年10月16日

TILs

Defcon 21 - The Secret Life of SIM Cards

Most(?) SIM cards are built with Java Card. Probably we can build it using Java Card Development Kit. It actually has low life expectancy, about 1,000 to 500,000 write cycles.

Check these:

PCSC

Get PCSC (PC/Smartcard API) reader for interfacing.

SIM Alliance Loader

quite slow java app for loading apps inside the java cards, might take at least 2 minutes, also built for windows

GlobalPlatform

Issuer Security Domain, which can only be communicated with OTA updates.

LOADing and INSTALLing the app authorization.

AIDs:

  1. Application AID

  2. Module AID

  3. Instance AID

simhacks