Class JsonWebSignature (2.0.0)

public class JsonWebSignature extends JsonWebToken

JSON Web Signature(JWS).

Sample usage:

public static void printPayload(JsonFactory jsonFactory, String tokenString) throws IOException { JsonWebSignature jws = JsonWebSignature.parse(jsonFactory, tokenString); System.out.println(jws.getPayload()); }

Implementation is not thread-safe.

Inheritance

java.lang.Object > JsonWebToken > JsonWebSignature

Inherited Members

JsonWebToken.getHeader()

JsonWebToken.getPayload()

JsonWebToken.toString()

Object.clone()

Object.equals(Object)

Object.finalize()

Object.getClass()

Object.hashCode()

Object.notify()

Object.notifyAll()

Object.wait()

Object.wait(long)

Object.wait(long,int)

Static Methods

parse(JsonFactory jsonFactory, String tokenString)

public static JsonWebSignature parse(JsonFactory jsonFactory, String tokenString)

Parses the given JWS token string and returns the parsed JsonWebSignature.

Parameters
Name	Description
`jsonFactory`	`JsonFactory` JSON factory
`tokenString`	`String` JWS token string

Returns
Type	Description
`JsonWebSignature`	parsed JWS

Exceptions
Type	Description
`IOException`

parser(JsonFactory jsonFactory)

public static JsonWebSignature.Parser parser(JsonFactory jsonFactory)

Returns a new instance of a JWS parser.

Parameter
Name	Description
`jsonFactory`	`JsonFactory`

Returns
Type	Description
`JsonWebSignature.Parser`

signUsingRsaSha256(PrivateKey privateKey, JsonFactory jsonFactory, JsonWebSignature.Header header, JsonWebToken.Payload payload)

public static String signUsingRsaSha256(PrivateKey privateKey, JsonFactory jsonFactory, JsonWebSignature.Header header, JsonWebToken.Payload payload)

Signs a given JWS header and payload based on the given private key using RSA and SHA-256 as described in JWS using RSA SHA-256.

Parameters
Name	Description
`privateKey`	`PrivateKey` private key
`jsonFactory`	`JsonFactory` JSON factory
`header`	`JsonWebSignature.Header` JWS header
`payload`	`JsonWebToken.Payload` JWS payload

Returns
Type	Description
`String`	signed JWS string

Exceptions
Type	Description
`GeneralSecurityException`
`IOException`

Constructors

JsonWebSignature(JsonWebSignature.Header header, JsonWebToken.Payload payload, byte[] signatureBytes, byte[] signedContentBytes)

public JsonWebSignature(JsonWebSignature.Header header, JsonWebToken.Payload payload, byte[] signatureBytes, byte[] signedContentBytes)

Parameters
Name	Description
`header`	`JsonWebSignature.Header` header
`payload`	`JsonWebToken.Payload` payload
`signatureBytes`	`byte[]` bytes of the signature
`signedContentBytes`	`byte[]` bytes of the signed content

Methods

getHeader()

public JsonWebSignature.Header getHeader()

Returns the header.

Overriding is only supported for the purpose of calling the super implementation and changing the return type, but nothing else.

Returns
Type	Description
`JsonWebSignature.Header`

Overrides

JsonWebToken.getHeader()

getSignatureBytes()

public final byte[] getSignatureBytes()

Returns the bytes of the signature.

Returns
Type	Description
`byte[]`

getSignedContentBytes()

public final byte[] getSignedContentBytes()

Returns the bytes of the signature content.

Returns
Type	Description
`byte[]`

verifySignature()

public final X509Certificate verifySignature()

Beta
Verifies the signature of the content using the certificate chain embedded in the signature.

Currently only "RS256" algorithm is verified, but others may be added in the future. For any other algorithm it returns null.

The certificate chain is verified using the system default trust manager.

The leaf certificate of the certificate chain must be an SSL server certificate.

Returns
Type	Description
`X509Certificate`	the signature certificate if the signature could be verified, null otherwise

Exceptions
Type	Description
`GeneralSecurityException`

verifySignature(PublicKey publicKey)

public final boolean verifySignature(PublicKey publicKey)

Verifies the signature of the content.

Currently only "RS256" and "ES256" algorithms are verified, but others may be added in the future. For any other algorithm it returns false.

Parameter
Name	Description
`publicKey`	`PublicKey` public key

Returns
Type	Description
`boolean`	whether the algorithm is recognized and it is verified

Exceptions
Type	Description
`GeneralSecurityException`

verifySignature(X509TrustManager trustManager)

public final X509Certificate verifySignature(X509TrustManager trustManager)