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# TKTokenAuthOperation

An authentication operation for a cryptographic token.

```
class TKTokenAuthOperation
```

## Overview

The CryptoTokenKit framework provides the following concrete subclasses: [`TKTokenPasswordAuthOperation`](/documentation/CryptoTokenKit/TKTokenPasswordAuthOperation), for password-based authentication, and [`TKTokenSmartCardPINAuthOperation`](/documentation/CryptoTokenKit/TKTokenSmartCardPINAuthOperation) for Smart Card PIN-based authentication.

## Topics

### Finishing the Operation

[`-  finishWithError:`](/documentation/CryptoTokenKit/TKTokenAuthOperation/finish())

Finishes the authentication operation.

## Relationships

### Conforms To

[`NSSecureCoding`](/documentation/Foundation/NSSecureCoding)

[`NSCoding`](/documentation/Foundation/NSCoding)

[`CustomStringConvertible`](/documentation/Swift/CustomStringConvertible)

[`CVarArg`](/documentation/Swift/CVarArg)

[`CustomDebugStringConvertible`](/documentation/Swift/CustomDebugStringConvertible)

[`Hashable`](/documentation/Swift/Hashable)

[`NSObjectProtocol`](/documentation/ObjectiveC/NSObjectProtocol)

[`Equatable`](/documentation/Swift/Equatable)

### Inherited By

[`TKTokenPasswordAuthOperation`](/documentation/CryptoTokenKit/TKTokenPasswordAuthOperation)

[`TKTokenSmartCardPINAuthOperation`](/documentation/CryptoTokenKit/TKTokenSmartCardPINAuthOperation)

### Inherits From

[`NSObject-swift.class`](/documentation/ObjectiveC/NSObject-swift.class)

---

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