# Crypto Hash/HMAC Extension for DuckDB [](https://duckdb.org/community_extensions/extensions/crypto.html) [](https://github.com/Query-farm/crypto/actions/workflows/MainDistributionPipeline.yml?query=branch%3Av1.5) This extension, `crypto`, adds cryptographic hash functions, HMAC (Hash-based Message Authentication Code) calculation, and cryptographically secure random byte generation to DuckDB. ## Documentation Full documentation, including installation, usage, the function reference, and cookbook examples, is available at: **[https://query.farm/products/extensions/crypto](https://query.farm/products/extensions/crypto)** ## Installation ```sql INSTALL crypto FROM community; LOAD crypto; ```