ProtoKey

java.lang.Object
- com.google.crypto.tink.tinkkey.internal.ProtoKey

All Implemented Interfaces:

TinkKey
```
@Immutable
public final class ProtoKey
extends java.lang.Object
implements TinkKey
```
Wraps the proto KeyData as an implementation of a TinkKey. The underlying KeyData determines whether this ProtoKey has a secret.
ProtoKey is not intended for use outside of the Tink project.

Constructor Summary

Constructors
Constructor	Description
`ProtoKey(com.google.crypto.tink.proto.KeyData keyData, KeyTemplate.OutputPrefixType opt)`	Constructs a ProtoKey with `hasSecret()` returning true if the input `KeyData` has key material of type UNKNOWN_KEYMATERIAL, SYMMETRIC, or ASYMMETRIC_PRIVATE.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`KeyTemplate`	`getKeyTemplate()`	A `TinkKey` should know the `KeyTemplate` from which it was generated, which in turn specifies the cryptographic algorithm in which the `TinkKey` should be used.
`KeyTemplate.OutputPrefixType`	`getOutputPrefixType()`
`com.google.crypto.tink.proto.KeyData`	`getProtoKey()`
`boolean`	`hasSecret()`	Returns true if the key contains secret key material, and false otherwise.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ProtoKey
```
public ProtoKey(com.google.crypto.tink.proto.KeyData keyData,
                KeyTemplate.OutputPrefixType opt)
```
    Constructs a ProtoKey with hasSecret() returning true if the input KeyData has key material of type UNKNOWN_KEYMATERIAL, SYMMETRIC, or ASYMMETRIC_PRIVATE.
- Method Detail
  - getProtoKey
```
public com.google.crypto.tink.proto.KeyData getProtoKey()
```
  - getOutputPrefixType
```
public KeyTemplate.OutputPrefixType getOutputPrefixType()
```
  - hasSecret
```
public boolean hasSecret()
```
    Description copied from interface: TinkKey
    
    Returns true if the key contains secret key material, and false otherwise.
    
    Specified by:
    
    hasSecret in interface TinkKey
  - getKeyTemplate
```
public KeyTemplate getKeyTemplate()
```
    Description copied from interface: TinkKey
    
    A TinkKey should know the KeyTemplate from which it was generated, which in turn specifies the cryptographic algorithm in which the TinkKey should be used. Throws UnsupportedOperationException to help ease rollout until it is possible to easily find the KeyTemplate associated to a key described in proto
    
    Specified by:
    
    getKeyTemplate in interface TinkKey
    
    Returns:
    
    the KeyTemplate used to generate the key.
    
    Throws:
    
    java.lang.UnsupportedOperationException - There is currently no direct way of getting a KeyTemplate from KeyData.