Similarity (ssdeep)
Beyond «identical/different», a 0-to-100 score of how much of the two files matches (skipped under 4 KB). On compressed formats a low score does not mean different documents.
Integrity
Compare
The Compare module tells whether two files are the same file by comparing their hashes. You drop A and B into the two areas and get a verdict for each chosen algorithm.
What it does
What the Compare module does
Two areas A/B
The dropped file lands in the slot under the cursor; dropping two at once fills A then B.
Selectable algorithms
MD5 and SHA-256 by default; you can pick all, only cryptographic ones, or a subset.
Strict verdict
Files are "identical" only if they match on all selected algorithms.
Export with context
JSON of the verdict and a PDF adding type, content date and metadata of both files.
Step by step
How it works
- Drop A and B into the two areas.
- Pick the algorithms (default MD5 + SHA-256).
- Probatio computes the hashes with cumulative progress and shows match/mismatch per algorithm.
FAQ
Frequently asked questions
When are two files considered identical?
When the hashes match on all selected algorithms; a single mismatch on one algorithm makes them different.
Which algorithms does the comparison use?
MD5 and SHA-256 by default; you can select all algorithms, only cryptographic ones, or a subset.
Can I export the comparison result?
Yes, to JSON and to a PDF report that also includes type, content date and metadata of both files.
Related modules