Right.
The Tinfoil Chat setup uses optocouplers to enforce one-way data transmission.[0] And one can use inexpensive CD-R and micro SD cards for single-use data transfer. But transferring anything but plain text is dangerous.
The Tinfoil Chat setup uses optocouplers to enforce one-way data transmission.[0] And one can use inexpensive CD-R and micro SD cards for single-use data transfer. But transferring anything but plain text is dangerous.
- Scanning QR codes (for example https://air-gap.it/)
- Audio codes (for example https://github.com/romanz/amodem)
Edit: https://air-gap.it/ seems down. But https://github.com/airgap-it is up.
I wonder if one could cut up QR codes, and store pieces separately. If that were done in Gimp or whatever, there could be multiple copies of each piece.