Ed25519Signer (Nimbus JOSE + JWT v9.37.3)

java.lang.Object
- com.nimbusds.jose.crypto.impl.BaseJWSProvider
- - com.nimbusds.jose.crypto.impl.EdDSAProvider
  - - com.nimbusds.jose.crypto.Ed25519Signer

All Implemented Interfaces:

JCAAware<JCAContext>, JOSEProvider, JWSProvider, JWSSigner
```
@ThreadSafe
public class Ed25519Signer
extends EdDSAProvider
implements JWSSigner
```
Ed25519 signer of JWS objects. Expects an OctetKeyPair with "crv" Ed25519. Uses the Edwards-curve Digital Signature Algorithm (EdDSA).
See RFC 8037 for more information.
This class is thread-safe.
Supports the following algorithm:
- JWSAlgorithm.EdDSA
with the following curve:
- Curve.Ed25519
Version:

2018-07-11

Author:

Tim McLean

Field Summary
- Fields inherited from class com.nimbusds.jose.crypto.impl.EdDSAProvider
  SUPPORTED_ALGORITHMS

Constructor Summary

Constructors
Constructor Description

Ed25519Signer(OctetKeyPair privateKey)
Creates a new Ed25519 signer.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`OctetKeyPair`	`getPrivateKey()`	Gets the Ed25519 private key as an `OctetKeyPair`.
`Base64URL`	`sign(JWSHeader header, byte[] signingInput)`	Signs the specified `input` of a `JWS object`.

Methods inherited from class com.nimbusds.jose.crypto.impl.BaseJWSProvider
getJCAContext, supportedJWSAlgorithms

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

Methods inherited from interface com.nimbusds.jose.jca.JCAAware
getJCAContext

Methods inherited from interface com.nimbusds.jose.JWSProvider
supportedJWSAlgorithms

- Constructor Detail
  - Ed25519Signer
```
public Ed25519Signer(OctetKeyPair privateKey)
              throws JOSEException
```
    Creates a new Ed25519 signer.
    
    Parameters:
    
    privateKey - The private key. Must be non-null, and must be of type Ed25519 ("crv": "Ed25519").
    
    Throws:
    
    JOSEException - If the key subtype is not supported or if the key is not a private key
- Method Detail
  - getPrivateKey
```
public OctetKeyPair getPrivateKey()
```
    Gets the Ed25519 private key as an OctetKeyPair.
    
    Returns:
    
    The private key.
  - sign
```
public Base64URL sign(JWSHeader header,
                      byte[] signingInput)
               throws JOSEException
```
    Description copied from interface: JWSSigner
    
    Signs the specified input of a JWS object.
    
    Specified by:
    
    sign in interface JWSSigner
    
    Parameters:
    
    header - The JSON Web Signature (JWS) header. Must specify a supported JWS algorithm and must not be null.
    
    signingInput - The input to sign. Must not be null.
    
    Returns:
    
    The resulting signature part (third part) of the JWS object.
    
    Throws:
    
    JOSEException - If the JWS algorithm is not supported, if a critical header parameter is not supported or marked for deferral to the application, or if signing failed for some other internal reason.