> ## Documentation Index
> Fetch the complete documentation index at: https://docs.revoengine.com/llms.txt
> Use this file to discover all available pages before exploring further.

# util.rsaGeneratePair()

> Public low-code contract, signatures and examples for util.rsaGeneratePair.

## `util.rsaGeneratePair()`

Generates an RSA key pair.

Asynchronous; modulusLength: multiple of 256 in 1024..4096; passphrase: at most 4096 code units.

### Signature

```ts theme={null}
static rsaGeneratePair(config?: {
      modulusLength?: number;
      passphrase?: string;
    }): Promise<{ publicKey: string; privateKey: string }>;
```

### Example

```ts theme={null}
const pair = await util.rsaGeneratePair({ modulusLength: 2048 });
```

See [all util methods](https://docs.revoengine.com/low-code/reference/util.md) or [runtime basics](https://docs.revoengine.com/low-code/overview.md).


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