Package com.nimbusds.jose

Class JWSObject

java.lang.Object

com.nimbusds.jose.JOSEObject

com.nimbusds.jose.JWSObject

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

SignedJWT

@ThreadSafe
public class JWSObject
extends JOSEObject

JSON Web Signature (JWS) secured object serialisable to compact encoding.

This class is thread-safe.

Version:

2021-10-05

Author:

Vladimir Dzhuvinov

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	JWSObject.State	Enumeration of the states of a JSON Web Signature (JWS) secured object.

Field Summary

Fields inherited from class com.nimbusds.jose.JOSEObject

MIME_TYPE_COMPACT, MIME_TYPE_JS

Constructor Summary

Constructors

Constructor	Description
JWSObject(JWSHeader header, Payload payload)	Creates a new to-be-signed JSON Web Signature (JWS) object with the specified header and payload.
JWSObject(Base64URL firstPart, Payload payload, Base64URL thirdPart)	Creates a new signed JSON Web Signature (JWS) object with the specified serialised parts and payload which can be optionally unencoded (RFC 7797).
JWSObject(Base64URL firstPart, Base64URL secondPart, Base64URL thirdPart)	Creates a new signed JSON Web Signature (JWS) object with the specified serialised parts.

Method Summary

Modifier and Type	Method	Description
JWSHeader	getHeader()	Returns the header of this JOSE object.
Base64URL	getSignature()	Returns the signature of this JWS object.
byte[]	getSigningInput()	Returns the signing input for this JWS object.
JWSObject.State	getState()	Returns the state of the JWS secured object.
static JWSObject	parse(String s)	Parses a JWS object from the specified string in compact format.
static JWSObject	parse(String s, Payload detachedPayload)	Parses a JWS object from the specified string in compact format and a detached payload which can be optionally unencoded (RFC 7797).
String	serialize()	Serialises this JWS object to its compact format consisting of Base64URL-encoded parts delimited by period ('.') characters.
String	serialize(boolean detachedPayload)	Serialises this JWS object to its compact format consisting of Base64URL-encoded parts delimited by period ('.') characters.
void	sign(JWSSigner signer)	Signs this JWS object with the specified signer.
boolean	verify(JWSVerifier verifier)	Checks the signature of this JWS object with the specified verifier.

Methods inherited from class com.nimbusds.jose.JOSEObject

getParsedParts, getParsedString, getPayload, setParsedParts, setPayload, split

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

JWSObject

public JWSObject(JWSHeader header,
                 Payload payload)

Creates a new to-be-signed JSON Web Signature (JWS) object with the specified header and payload. The initial state will be unsigned.

Parameters:

header - The JWS header. Must not be null.

payload - The payload. Must not be null.

JWSObject

public JWSObject(Base64URL firstPart,
                 Base64URL secondPart,
                 Base64URL thirdPart)
          throws ParseException

Creates a new signed JSON Web Signature (JWS) object with the specified serialised parts. The state will be signed.

Parameters:

firstPart - The first part, corresponding to the JWS header. Must not be null.

secondPart - The second part, corresponding to the payload. Must not be null.

thirdPart - The third part, corresponding to the signature. Must not be null.

Throws:

ParseException - If parsing of the serialised parts failed.

JWSObject

public JWSObject(Base64URL firstPart,
                 Payload payload,
                 Base64URL thirdPart)
          throws ParseException

Creates a new signed JSON Web Signature (JWS) object with the specified serialised parts and payload which can be optionally unencoded (RFC 7797). The state will be signed.

Parameters:

firstPart - The first part, corresponding to the JWS header. Must not be null.

payload - The payload. Must not be null.

thirdPart - The third part, corresponding to the signature. Must not be null.

Throws:

ParseException - If parsing of the serialised parts failed.

Method Detail

getHeader

public JWSHeader getHeader()

Description copied from class: JOSEObject

Returns the header of this JOSE object.

Specified by:

getHeader in class JOSEObject

Returns:

The header.

getSigningInput

public byte[] getSigningInput()

Returns the signing input for this JWS object.

Returns:

The signing input, to be passed to a JWS signer or verifier.

getSignature

public Base64URL getSignature()

Returns the signature of this JWS object.

Returns:

The signature, null if the JWS object is not signed yet.

getState

public JWSObject.State getState()

Returns the state of the JWS secured object.

Returns:

The state.

sign

public void sign(JWSSigner signer)
          throws JOSEException

Signs this JWS object with the specified signer. The JWS object must be in a unsigned state.

Parameters:

signer - The JWS signer. Must not be null.

Throws:

IllegalStateException - If the JWS object is not in an unsigned state.

JOSEException - If the JWS object couldn't be signed.

verify

public boolean verify(JWSVerifier verifier)
               throws JOSEException

Checks the signature of this JWS object with the specified verifier. The JWS object must be in a signed state.

Parameters:

verifier - The JWS verifier. Must not be null.

Returns:

true if the signature was successfully verified, else false.

Throws:

IllegalStateException - If the JWS object is not in a signed or verified state.

JOSEException - If the JWS object couldn't be verified.

serialize

public String serialize()

Serialises this JWS object to its compact format consisting of Base64URL-encoded parts delimited by period ('.') characters. It must be in a signed or verified state.

 [header-base64url].[payload-base64url].[signature-base64url]
 

Specified by:

serialize in class JOSEObject

Returns:

The serialised JWS object.

Throws:

IllegalStateException - If the JWS object is not in a signed or verified state.

serialize

public String serialize(boolean detachedPayload)

Serialises this JWS object to its compact format consisting of Base64URL-encoded parts delimited by period ('.') characters. It must be in a signed or verified state.

Parameters:

detachedPayload - true to return a serialised object with a detached payload compliant with RFC 7797, false for regular JWS serialisation.

Returns:

The serialised JOSE object.

Throws:

IllegalStateException - If the JOSE object is not in a state that permits serialisation.

parse

public static JWSObject parse(String s)
                       throws ParseException

Parses a JWS object from the specified string in compact format. The parsed JWS object will be given a JWSObject.State.SIGNED state.

Parameters:

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

Returns:

The JWS object.

Throws:

ParseException - If the string couldn't be parsed to a JWS object.

parse

public static JWSObject parse(String s,
                              Payload detachedPayload)
                       throws ParseException

Parses a JWS object from the specified string in compact format and a detached payload which can be optionally unencoded (RFC 7797). The parsed JWS object will be given a JWSObject.State.SIGNED state.

Parameters:

s - The JWS string to parse for a detached payload. Must not be null.

detachedPayload - The detached payload, optionally unencoded (RFC 7797). Must not be null.

Returns:

The JWS object.

Throws:

ParseException - If the string couldn't be parsed to a JWS object.