[API reference](https://evolu.dev/docs/api-reference) › [@evolu/common](https://evolu.dev/docs/api-reference/common) › [Crypto](https://evolu.dev/docs/api-reference/common/Crypto) › xChaCha20Poly1305NonceLength

```ts
const xChaCha20Poly1305NonceLength: 24 = 24;
```

Defined in: [packages/common/src/Crypto.ts:140](https://github.com/evoluhq/evolu/blob/e7144e2bbe9069362b62dec1b64a8aa922b8f1b0/packages/common/src/Crypto.ts#L140)

The nonce length for XChaCha20-Poly1305 encryption.