# CreateSignature

### Description

Creates and optionally executes cryptographic signatures for blockchain messages and structured data.

**Supported signature types:**

* **Message signing**:\ Plain text message signing using personal\_sign method
* **EIP-712**:\ Ethereum typed structured data signing for improved security and usability

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```csharp
public static VyTask<VyExecutedSignatureResponse> CreateSignature(VyCreateSignatureRequest reqParams, VyUserAuth signingMethod)
```

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**Parameters**

| reqParams     | [VyCreateSignatureRequest](https://sdk.venly.io/sdk-reference/c-sdk-v3/object-references/wallet/vycreatesignaturerequest) | Request data for the operation                                             |
| ------------- | ------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------- |
| signingMethod | VyUserAuth                                                                                                                | This operation requires a valid Signing-Method from the corresponding user |

**Returns**

VyTask<[VyExecutedSignatureResponse](https://sdk.venly.io/sdk-reference/c-sdk-v3/object-references/wallet/vycreatesignaturebase/vyexecutedsignatureresponse)>\
Signature created and signed successfully.
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