---
title: "saltInput1(_:saltInput2:)"
framework: authenticationservices
role: symbol
role_heading: Type Method
path: "authenticationservices/asauthorizationpublickeycredentialprfassertioninput-swift.struct/inputvalues-swift.struct/saltinput1(_:saltinput2:)"
---

# saltInput1(_:saltInput2:)

The inputs for generating the PRF output secrets.

## Declaration

```swift
static func saltInput1(_ saltInput1: Data, saltInput2: Data? = nil) -> ASAuthorizationPublicKeyCredentialPRFAssertionInput.InputValues
```

## Parameters

- `saltInput1`: The input the system uses when generating first.
- `saltInput2`: If specified, the input when generating second. If not specified, second is nil.

## Return Value

Return Value A configured instance of InputValues.