---
title: "signature(for:)"
framework: cryptokit
role: symbol
role_heading: Instance Method
path: "cryptokit/secureenclave/mldsa65/privatekey/signature(for:)"
---

# signature(for:)

Generates a MLDSA65 signature

## Declaration

```swift
func signature<D>(for data: D) throws -> Data where D : DataProtocol
```

## Parameters

- `data`: The data to sign

## Return Value

Return Value The MLDSA65 signature

## Discussion

Discussion note: If there is a failure producing the signature