HpkeParameters

java.lang.Object
- com.google.crypto.tink.Parameters
- - com.google.crypto.tink.hybrid.HybridParameters
  - - com.google.crypto.tink.hybrid.HpkeParameters

```
public final class HpkeParameters
extends HybridParameters
```
Description of the parameters for an HpkePublicKey or HpkePrivateKey.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`static class`	`HpkeParameters.AeadId`	HPKE AEAD identifiers.
`static class`	`HpkeParameters.Builder`	Builds a new `HpkeParameters` instance.
`static class`	`HpkeParameters.KdfId`	HPKE KDF identifiers.
`static class`	`HpkeParameters.KemId`	HPKE KEM identifiers.
`static class`	`HpkeParameters.Variant`	Description of the output prefix prepended to the ciphertext.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static HpkeParameters.Builder`	`builder()`
`boolean`	`equals(java.lang.Object o)`
`HpkeParameters.AeadId`	`getAeadId()`
`HpkeParameters.KdfId`	`getKdfId()`
`HpkeParameters.KemId`	`getKemId()`
`HpkeParameters.Variant`	`getVariant()`
`int`	`hashCode()`
`boolean`	`hasIdRequirement()`	Returns true if a key created with the parameters in this object has to have a certain ID when it is in a keyset.
`java.lang.String`	`toString()`

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

- Method Detail
  - builder
```
public static HpkeParameters.Builder builder()
```
  - getKemId
```
public HpkeParameters.KemId getKemId()
```
  - getKdfId
```
public HpkeParameters.KdfId getKdfId()
```
  - getAeadId
```
public HpkeParameters.AeadId getAeadId()
```
  - getVariant
```
public HpkeParameters.Variant getVariant()
```
  - hasIdRequirement
```
public boolean hasIdRequirement()
```
    Description copied from class: Parameters
    
    Returns true if a key created with the parameters in this object has to have a certain ID when it is in a keyset.
    In Tink, certain keys change their behavior depending on the key id (for example, an Aead object can prefix the ciphertext with the big endian encoding of the key id). If this is the case, such a key should require a unique id in Key.getIdRequirementOrNull() and return true here.
    
    Specified by:
    
    hasIdRequirement in class Parameters
  - equals
```
public boolean equals(java.lang.Object o)
```
    Overrides:
    
    equals in class java.lang.Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class java.lang.Object
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object