[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:207](https://github.com/evoluhq/evolu/blob/dd96d79f1dbe9a49fa12ce8e0aa7d3d0177795ca/packages/common/src/Crypto.ts#L207)

The nonce length for XChaCha20-Poly1305 encryption.