About SSDEEP
SSDEEP is a program for computing context triggered piecewise hashes (CTPH). Also called fuzzy hashes, CTPH can match inputs that have homologies. Such inputs have sequences of identical bytes in the same order, although bytes in between these sequences may be different in both content and length. SSDEEP hashes are now widely used for simple identification purposes (e.g. the 'Basic Properties' section in VirusTotal). Although 'better' fuzzy hashes are available, SSDEEP is still one of the primary choices because of its speed and being a de facto standard. This operation is fundamentally the same as the CTPH operation, however their outputs differ in format.
Input: text. Output: text.
Format reference: SSDEEP background and specification
Example
Use “Try example” to load this public sample and its settings, then run it.
Result
48:Ek5JJJJk5kUU5JJJkUUUUU5kU5JkUUUU5kUU5kUU5Jk5kUU5JJJkUUU5k5JJJJJv:n
Parameters
This tool does not need additional parameters.
Before interpreting the result
Use a checksum to compare exact bytes against a trusted digest. Choose a password hashing function for passwords and a MAC for keyed authentication. MD5 and SHA-1 are unsuitable for new security-sensitive designs.
How to use this page
- Paste your input or open a local file.
- Adjust tool options if needed, then choose Run tool.
- Copy the result or download the original output bytes.
Inputs and results are not added to the public catalogue or saved in the URL. Processing happens in your browser; HTTP Request and DNS over HTTPS send the requests you explicitly run. Files up to 128 MiB can be opened; decompression and image tools may have smaller processing limits. Large results have a shortened preview. Text and HTML downloads use UTF-8; binary downloads preserve output bytes. Pasted text follows browser newline handling; open a file when exact input bytes matter.