Hashes noble-hashes xof

cSHAKE128 Generator - Customizable SHAKE XOF

Generate cSHAKE128 customizable XOF output with personalization strings and function naming per NIST SP 800-185.

cshake128.workspace
3 options
0 bytes UTF-8, Hex, Base64, or File input
Options

Secure client-side computation. No data leaves your browser. Privacy Security

Result Output

What Is cSHAKE128?

cSHAKE128 is a customizable extendable-output function defined in NIST SP 800-185, extending SHAKE128 with optional function-name and personalization parameters for domain separation.

Specifications

Output Size Variable
Standard NIST SP 800-185
Standard Year 2016
Origin Keccak submission to NIST SHA-3 competition
Origin Year 2008

Use Cases

  • Protocol-specific XOF requirements
  • Domain-separated key derivation
  • NIST-compliant randomness generation
  • Customizable hash-based functions
  • Specialized cryptographic protocols
!

Security Notice

cSHAKE128 is a secure extendable-output function when used with an appropriate output length. Use a dedicated KDF or password hashing algorithm for password storage.

Related Tools

cSHAKE256 Hashes SHAKE128 Hashes KMAC128 MACs

Utilities

File Hash Verifier Verify local files against published checksums. Hash Compare Compare expected and actual digest values. Multi Hash Generator Generate common hashes from one input.

Guides

Algorithm Comparison Guide Choose the right primitive for each task. Hash Test Vectors Compare known outputs across common algorithms.

Implementation Notes

Practical usage details for this browser-based cSHAKE128 tool.

How to Generate a cSHAKE128 hash

  1. Choose UTF-8, Hex, Base64, or File input mode.
  2. Enter text, encoded bytes, or choose a local file to process.
  3. Adjust the cSHAKE128 options if your use case requires non-default settings.
  4. Click Generate cSHAKE128 Hash and copy the result.

Example Input

Sample input:

abc

Use this sample input, then copy the generated hash from the result panel.

When Not to Use cSHAKE128

  • Do not use a plain hash or derivation output directly as password storage without the right password-hashing construction and parameters.

Recommended Alternatives

Review related tools when you need a different output size, security margin, or keyed construction.

Frequently Asked Questions