[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) › Entropy16

```ts
const Entropy16: length(16)(Entropy);
```

Defined in: [packages/common/src/Crypto.ts:102](https://github.com/evoluhq/evolu/blob/dd96d79f1dbe9a49fa12ce8e0aa7d3d0177795ca/packages/common/src/Crypto.ts#L102)

Cryptographic entropy of exactly 16 bytes.