# SignSignature (ById)

### Description

Executes a confirmed signature request by performing the cryptographic signing operation. It returns the completed signature in the appropriate format.

**Prerequisites:**

* Signature request must be in **READY** status (use confirm endpoint first)

{% code overflow="wrap" %}

```csharp
public static VyTask<VySignatureBase> SignSignature(string id, VySignSignatureRequest reqParams, VyUserAuth signingMethod)
```

{% endcode %}

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**Parameters**

| id            | string                                                                                                                | UUID of the signature request to execute                                   |
| ------------- | --------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------- |
| reqParams     | [VySignSignatureRequest](https://sdk.venly.io/sdk-reference/c-sdk-v3/object-references/wallet/vysignsignaturerequest) | Request data for the operation                                             |
| signingMethod | VyUserAuth                                                                                                            | This operation requires a valid Signing-Method from the corresponding user |

**Returns**

VyTask<[VySignatureBase](https://sdk.venly.io/sdk-reference/c-sdk-v3/object-references/wallet/vysignaturebase)>\
Signature signed successfully.
{% endtab %}
{% endtabs %}

## Relevant Functions

* [VyTask\<VyHexSignatureDto> SignSignature\_HexSignature (VySignSignatureRequest ...)](https://sdk.venly.io/sdk-reference/c-sdk-v3/function-references/wallet/signatures/signsignaturebyid/signsignature_hexsignature_0)
* [VyTask\<VyRawSignatureDto> SignSignature\_RawSignature (VySignSignatureRequest ...)](https://sdk.venly.io/sdk-reference/c-sdk-v3/function-references/wallet/signatures/signsignaturebyid/signsignature_rawsignature_1)
* [VyTask\<VySubmittedAndSignedTransactionSignatureDto> SignSignature\_SubmittedAndSignedTransactionSignature (VySignSignatureRequest ...)](https://sdk.venly.io/sdk-reference/c-sdk-v3/function-references/wallet/signatures/signsignaturebyid/signsignature_submittedandsignedtransactionsignature_2)
* [VyTask\<VyTransactionSignatureDto> SignSignature\_TransactionSignature (VySignSignatureRequest ...)](https://sdk.venly.io/sdk-reference/c-sdk-v3/function-references/wallet/signatures/signsignaturebyid/signsignature_transactionsignature_3)