Slashdot Reader Builds a Photo-Verification App for iPhones
Long-time Slashdot reader BrianFagioli is announcing that he's released a new iPhone app that creates a cryptographic witness for photos without uploading the original image. The app hashes the file, signs the hash using a dedicated identity stored in Apple Keychain, and publishes the witness to Nostr relays while keeping the photo inside the app unless the user chooses to export it. Rather than…
Long-time Slashdot contributor BrianFagioli has unveiled a new iPhone application that generates a cryptographic verification for photographs without uploading the original image to the device. The software derives a hash from the file, signs the hash with a dedicated identity stored within Apple Keychain, and posts the witness onto Nostr relay networks while maintaining the photo inside the application unless the user decides to export it.
Rather than attempting to ascertain whether a scene was authentic, the application - titled Veridenz - addresses a more specific inquiry: verifying whether a photo file corresponds to the one that was initially documented. Users do not require a Nostr account since the app establishes its own signing identity, segregating private records from a public Nostr profile.
The developer of the application asserts that no data is gathered from this app, as confirmed in its listing on Apple's iPhone store. The app's slogan is "Capture. Prove. Verify." For further details, refer to Slashdot.
Written by urgent.news from Slashdot's reporting — not their text. Machine-written; read the original for the full account.
