Fingerprints of Electronic Files: Precision Tests

precision test

random files

2-bit difference

1-bit difference

compression technique

sum bits at end row

Good rules:

3045758689101106120135149169225

Information stored in digital documents can be lost during transmission, migration, or when the storage medium breaks down or is corrupted. To ensure that the data has not changed, you can perform a digital fingerprint procedure. A digital fingerprint is unique to each document and verifies the integrity (unaltered state) of the document.

This Demonstration presents some results of using modified cellular automata to generate fingerprints of electronic documents based on their contents. It uses the binary data of the document as the initial condition. The result of the computation is a fingerprint of the document, in this case 128 bits. The good rules are able to detect different files. On 100 different files, the goal is to have 100 different fingerprints.