---
title: "BLAKE2s"
description: "BLAKE2 for 32-bit platforms with a 32-byte digest and HMAC. Smaller state than BLAKE2b and inside WireGuard"
canonical_url: "https://hashes.agntn.dev/algorithms/blake2s"
---
# BLAKE2s

> BLAKE2 for 32-bit platforms with a 32-byte digest and HMAC. Smaller state than BLAKE2b and inside WireGuard

<algorithm-facts name="blake2s">



</algorithm-facts>

BLAKE2 on 32-bit words, for the microcontrollers and 32-bit targets where BLAKE2b's 64-bit arithmetic hurts. On a desktop CPU BLAKE2b is usually the faster one.

```ts
create("blake2s").hash("abc").digest;
// "508c5e8c327c14e2e1a72ba34eeb452f37458b209ed63a294d999b4c86675982"
```

WireGuard picked this one. HMAC works here too, over BLAKE2s's 64-byte blocks.


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