About Ascon Hash
Ascon-Hash256 produces a fixed 256-bit (32-byte) cryptographic hash as standardised in NIST SP 800-232. Ascon is a family of lightweight authenticated encryption and hashing algorithms designed for constrained devices such as IoT sensors and embedded systems. The algorithm was selected by NIST in 2023 as the new standard for lightweight cryptography after a multi-year competition.
Input: binary bytes (text input uses UTF-8; a file retains its original bytes). Output: text.
Format reference: Ascon Hash background and specification
Example
Use “Try example” to load this public sample and its settings, then run it.
Input
P
Result
b96da347d720272533a87f5a94a356155f49cdf7c0c10a3e6f346d8a2293e480
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.