> ## 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.aesDecrypt()

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

## `util.aesDecrypt()`

AES decrypt helper.

Ciphertext: at most 5592464 base64 characters; passphrase: at most 4096 UTF-16 code units.

### Signature

```ts theme={null}
static aesDecrypt(encrypted: string, passphrase: string): Promise<string>;
```

### Example

```ts theme={null}
const plain = await util.aesDecrypt(encrypted, passphrase);
```

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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