cSHAKE256 File Hash Generator

What is cSHAKE256?

cSHAKE256 is a cryptographic hash function that produces a fixed-size hash value from variable-length input data. SHAKE (Secure Hash Algorithm Keccak) is an extendable-output function (XOF) based on Keccak. Unlike traditional hash functions, it can produce output of any desired length. This tool allows you to upload files and calculate their cSHAKE256 hash for verification and integrity checking.

How to Use cSHAKE256

1. Click "Select File" or drag and drop your file into the upload area. 2. The cSHAKE256 hash will be calculated automatically. 3. Copy the resulting hash value for verification or storage. All processing happens locally in your browser - no files are uploaded to any server.

When to Use cSHAKE256

Use cSHAKE256 for modern cryptographic applications, especially in blockchain/cryptocurrency projects, or when you need the latest security standards.

How cSHAKE256 Works

cSHAKE256 uses the Keccak sponge construction in XOF mode, allowing variable-length output. It continuously produces output bits through repeated application of the Keccak permutation. The file is read in chunks and processed incrementally to handle large files efficiently without loading the entire file into memory.

Common Use Cases

• Variable-length hashes
• Key derivation
• Random number generation
• Cryptographic protocols
• Custom hash lengths