5 ms·

Then you have a signed picture of a modified picture which can't be altered further. Cryptographic signatures only ensures data integrity and authenticity after

Then you have a signed picture of a modified picture which can't be altered further. Cryptographic signatures only ensures data integrity and authenticity after the cryptographic signature was made.

remram 4y ago
It can totally be altered further. Just print the altered version and take a picture again.
- TeeMassive 4y ago
  Not without having a valid signature
  - remram 4y ago
    Do you mean "not with"? The camera generates a valid signature every time you take a picture...