com.nimbusds.jose
Class JWSAlgorithm

java.lang.Object
  com.nimbusds.jose.Algorithm
      com.nimbusds.jose.JWSAlgorithm

All Implemented Interfaces:

net.minidev.json.JSONAware

@Immutable
public final class JWSAlgorithm
extends Algorithm

JSON Web Signature (JWS) algorithm name, represents the alg header parameter in JWS objects. Also used to represent integrity algorithm (ia) header parameters in JWE objects. This class is immutable.

Includes constants for the following standard JWS algorithm names:

• HS256
• HS384
• HS512
• RS256
• RS384
• RS512
• ES256
• ES384
• ES512

Additional JWS algorithm names can be defined using the constructors.

Version:

$version$ (2013-01-08)

Author:

Vladimir Dzhuvinov

Field Summary

static JWSAlgorithm	ES256 ECDSA using P-256 curve and SHA-256 hash algorithm (recommended).
static JWSAlgorithm	ES384 ECDSA using P-384 curve and SHA-384 hash algorithm (optional).
static JWSAlgorithm	ES512 ECDSA using P-521 curve and SHA-512 hash algorithm (optional).
static JWSAlgorithm	HS256 HMAC using SHA-256 hash algorithm (required).
static JWSAlgorithm	HS384 HMAC using SHA-384 hash algorithm (optional).
static JWSAlgorithm	HS512 HMAC using SHA-512 hash algorithm (optional).
static JWSAlgorithm	RS256 RSA using SHA-256 hash algorithm (recommended).
static JWSAlgorithm	RS384 RSA using SHA-384 hash algorithm (optional).
static JWSAlgorithm	RS512 RSA using SHA-512 hash algorithm (optional).

Fields inherited from class com.nimbusds.jose.Algorithm

NONE

Constructor Summary

JWSAlgorithm(String name)
Creates a new JSON Web Signature (JWS) algorithm name.

JWSAlgorithm(String name, Requirement req)
Creates a new JSON Web Signature (JWS) algorithm name.

Method Summary

static JWSAlgorithm

parse(String s) Parses a JWS algorithm from the specified string.

Methods inherited from class com.nimbusds.jose.Algorithm

equals, getName, getRequirement, hashCode, toJSONString, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

HS256

public static final JWSAlgorithm HS256

HMAC using SHA-256 hash algorithm (required).

HS384

public static final JWSAlgorithm HS384

HMAC using SHA-384 hash algorithm (optional).

HS512

public static final JWSAlgorithm HS512

HMAC using SHA-512 hash algorithm (optional).

RS256

public static final JWSAlgorithm RS256

RSA using SHA-256 hash algorithm (recommended).

RS384

public static final JWSAlgorithm RS384

RSA using SHA-384 hash algorithm (optional).

RS512

public static final JWSAlgorithm RS512

RSA using SHA-512 hash algorithm (optional).

ES256

public static final JWSAlgorithm ES256

ECDSA using P-256 curve and SHA-256 hash algorithm (recommended).

ES384

public static final JWSAlgorithm ES384

ECDSA using P-384 curve and SHA-384 hash algorithm (optional).

ES512

public static final JWSAlgorithm ES512

ECDSA using P-521 curve and SHA-512 hash algorithm (optional).

Constructor Detail

JWSAlgorithm

public JWSAlgorithm(String name,
                    Requirement req)

Creates a new JSON Web Signature (JWS) algorithm name.

Parameters:

name - The algorithm name. Must not be null.

req - The implementation requirement, null if not known.

JWSAlgorithm

public JWSAlgorithm(String name)

Creates a new JSON Web Signature (JWS) algorithm name.

Parameters:

name - The algorithm name. Must not be null.

Method Detail

parse

public static JWSAlgorithm parse(String s)

Parses a JWS algorithm from the specified string.

Parameters:

s - The string to parse. Must not be null.

Returns:

The JWS algorithm (matching standard algorithm constant, else a newly created algorithm).