org.picketlink.identity.federation.core.saml.v2.util

Class SignatureUtil

java.lang.Object

org.picketlink.identity.federation.core.saml.v2.util.SignatureUtil

public class SignatureUtil
extends Object

Signature utility for signing content

Since:

Dec 16, 2008

Author:

Anil.Saldhana@redhat.com

Constructor Summary

Constructors

Constructor and Description
SignatureUtil()

Method Summary

Methods

Modifier and Type	Method and Description
static KeyValueType	createKeyValue(PublicKey key) Creates a KeyValueType that wraps the specified public key.
static DSAKeyValueType	getDSAKeyValue(Element element) Given a dsig:DSAKeyValue element, return DSAKeyValueType
static RSAKeyValueType	getRSAKeyValue(Element element) Given a dsig:DSAKeyValue element, return DSAKeyValueType
static String	getXMLSignatureAlgorithmURI(String algo) Get the XML Signature URI for the algo (RSA, DSA)
static void	marshall(SignatureType signature, OutputStream os) Marshall a SignatureType to output stream
static byte[]	sign(String stringToBeSigned, PrivateKey signingKey) Sign a string using the private key
static boolean	validate(byte[] signedContent, byte[] signatureValue, PublicKey validatingKey) Validate the signed content with the signature value
static boolean	validate(byte[] signedContent, byte[] signatureValue, String signatureAlgorithm, X509Certificate validatingCert) Validate the signature using a x509 certificate

Methods inherited from class java.lang.Object

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

Constructor Detail

SignatureUtil

public SignatureUtil()

Method Detail

marshall

public static void marshall(SignatureType signature,
            OutputStream os)
                     throws JAXBException,
                            SAXException

Marshall a SignatureType to output stream

Parameters:

signature -

os -

Throws:

SAXException

JAXBException

getXMLSignatureAlgorithmURI

public static String getXMLSignatureAlgorithmURI(String algo)

Get the XML Signature URI for the algo (RSA, DSA)

Parameters:

algo -

Returns:

sign

public static byte[] sign(String stringToBeSigned,
          PrivateKey signingKey)
                   throws GeneralSecurityException

Sign a string using the private key

Parameters:

stringToBeSigned -

signingKey -

Returns:

Throws:

GeneralSecurityException

validate

public static boolean validate(byte[] signedContent,
               byte[] signatureValue,
               PublicKey validatingKey)
                        throws GeneralSecurityException

Validate the signed content with the signature value

Parameters:

signedContent -

signatureValue -

validatingKey -

Returns:

Throws:

GeneralSecurityException

validate

public static boolean validate(byte[] signedContent,
               byte[] signatureValue,
               String signatureAlgorithm,
               X509Certificate validatingCert)
                        throws GeneralSecurityException

Validate the signature using a x509 certificate

Parameters:

signedContent -

signatureValue -

signatureAlgorithm -

validatingCert -

Returns:

Throws:

GeneralSecurityException

getDSAKeyValue

public static DSAKeyValueType getDSAKeyValue(Element element)
                                      throws ParsingException

Given a dsig:DSAKeyValue element, return DSAKeyValueType

Parameters:

element -

Returns:

Throws:

ParsingException

getRSAKeyValue

public static RSAKeyValueType getRSAKeyValue(Element element)
                                      throws ParsingException

Given a dsig:DSAKeyValue element, return DSAKeyValueType

Parameters:

element -

Returns:

Throws:

ParsingException

createKeyValue

public static KeyValueType createKeyValue(PublicKey key)

Creates a KeyValueType that wraps the specified public key. This method supports DSA and RSA keys.

Parameters:

key - the PublicKey that will be represented as a KeyValueType.

Returns:

the constructed KeyValueType or null if the specified key is neither a DSA nor a RSA key.