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/*
* Signature.java
*
* Created on January 24, 2006, 3:59 PM
*/
package com.sun.xml.ws.security.opt.crypto.dsig;
import com.sun.xml.ws.security.opt.impl.util.JAXBUtil;
import com.sun.xml.ws.security.opt.crypto.dsig.keyinfo.KeyInfo;
import com.sun.xml.wss.impl.MessageConstants;
import com.sun.xml.wss.logging.LogDomainConstants;
import java.security.InvalidKeyException;
import java.security.Key;
import java.security.SignatureException;
import java.util.Arrays;
import java.util.List;
import java.util.logging.Logger;
import java.util.logging.Level;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlTransient;
import javax.xml.crypto.KeySelector;
import javax.xml.crypto.KeySelectorException;
import javax.xml.crypto.KeySelectorResult;
import javax.xml.crypto.MarshalException;
import javax.xml.crypto.dsig.SignatureMethod;
import javax.xml.crypto.dsig.XMLSignContext;
import javax.xml.crypto.dsig.XMLSignatureException;
import javax.xml.crypto.dsig.XMLValidateContext;
import org.jvnet.staxex.XMLStreamReaderEx;
import javax.xml.crypto.dsig.spec.SignatureMethodParameterSpec;
import javax.xml.crypto.dsig.spec.HMACParameterSpec;
import com.sun.xml.wss.logging.impl.opt.signature.LogStringsMessages;
/**
*
* @author Abhijit Das
* @author K.Venugopal@sun.com
*/
@XmlRootElement(name="Signature",namespace = "http://www.w3.org/2000/09/xmldsig#")
public class Signature extends com.sun.xml.security.core.dsig.SignatureType implements javax.xml.crypto.dsig.XMLSignature {
@XmlTransient private static final Logger logger = Logger.getLogger(LogDomainConstants.IMPL_OPT_SIGNATURE_DOMAIN,
LogDomainConstants.IMPL_OPT_SIGNATURE_DOMAIN_BUNDLE);
@XmlTransient private XMLStreamReaderEx _streamSI = null;
@XmlTransient private String type = null;
@XmlTransient private List<XMLObject> objects = null;
@XmlTransient private SignatureProcessor _sp;
@XmlTransient private Key verificationKey = null;
@XmlTransient private byte [] signedInfoBytes = null;
/**
* Creates a new instance of Signature
*/
public Signature() {
}
public void setSignedInfo(XMLStreamReaderEx streamReader) {
this._streamSI = streamReader;
}
public void setSignedInfo(byte [] si){
this.signedInfoBytes = si;
}
public void setVerificationKey(Key key){
this.verificationKey = key;
}
public Key getVerificationKey(){
return verificationKey;
}
public boolean validate(XMLValidateContext xMLValidateContext) throws XMLSignatureException {
SignatureMethod sm;
if (xMLValidateContext == null) {
throw new NullPointerException("validateContext cannot be null");
}
//List allReferences = new ArrayList(signedInfo.getReferences());
SignedInfo si = getSignedInfo();
List refList = si.getReferences();
for (int i = 0, size = refList.size(); i < size; i++) {
Reference ref = (Reference) refList.get(i);
byte[] originalDigest = ref.getDigestValue();
ref.digest(xMLValidateContext);
byte[] calculatedDigest = ref.getDigestValue();
if ( ! Arrays.equals(originalDigest, calculatedDigest) ) {
logger.log(Level.SEVERE, LogStringsMessages.WSS_1713_SIGNATURE_VERIFICATION_EXCEPTION("Signature digest values mismatch"));
throw new XMLSignatureException(LogStringsMessages.WSS_1713_SIGNATURE_VERIFICATION_EXCEPTION("Signature digest values mismatch"));
}
}
si.setSignedInfo(_streamSI);
// si.setCanonicalizedSI(signedInfoBytes);
KeySelectorResult keySelectoResult = null;
try {
sm = si.getSignatureMethod();
if(verificationKey == null){
keySelectoResult = xMLValidateContext.getKeySelector().select(getKeyInfo(),KeySelector.Purpose.VERIFY,sm,xMLValidateContext);
verificationKey = keySelectoResult.getKey();
}
if (verificationKey == null) {
throw new XMLSignatureException("The KeySelector"+ xMLValidateContext.getKeySelector()+ " did not " +
"find the key used for signature verification");
}
if(_sp == null){
_sp = new SignatureProcessor();
}
try {
String signatureAlgo = sm.getAlgorithm();
String algo = getRSASignatureAlgorithm(signatureAlgo);
if (algo != null) {
return _sp.verifyRSASignature(verificationKey, si, getSignatureValue().getValue(), algo);
} else if (signatureAlgo.equals(SignatureMethod.DSA_SHA1)) {
return _sp.verifyDSASignature(verificationKey, si, getSignatureValue().getValue());
} else if (signatureAlgo.equals(SignatureMethod.HMAC_SHA1)) {
SignatureMethodParameterSpec params = (SignatureMethodParameterSpec)sm.getParameterSpec();
int outputLength = -1;
if (params != null) {
if (!(params instanceof HMACParameterSpec)) {
throw new XMLSignatureException ("SignatureMethodParameterSpec must be of type HMACParameterSpec");
}
outputLength = ((HMACParameterSpec) params).getOutputLength();
}
return _sp.verifyHMACSignature(verificationKey,si,getSignatureValue().getValue(), outputLength);
} else {
throw new XMLSignatureException("Unsupported signature algorithm found");
}
} catch (InvalidKeyException ex) {
logger.log(Level.SEVERE, LogStringsMessages.WSS_1713_SIGNATURE_VERIFICATION_EXCEPTION(ex));
throw new XMLSignatureException(LogStringsMessages.WSS_1713_SIGNATURE_VERIFICATION_EXCEPTION(ex));
} catch (SignatureException ex) {
logger.log(Level.SEVERE, LogStringsMessages.WSS_1713_SIGNATURE_VERIFICATION_EXCEPTION("Signature digest values mismatch"));
throw new XMLSignatureException(LogStringsMessages.WSS_1713_SIGNATURE_VERIFICATION_EXCEPTION(ex));
}
} catch (KeySelectorException kse) {
throw new XMLSignatureException("Cannot find verification key", kse);
}
//return false;
}
public List getObjects() {
return null;
}
public void sign(XMLSignContext xMLSignContext) throws MarshalException, XMLSignatureException {
SignatureMethod sm;
if (xMLSignContext == null) {
throw new NullPointerException("signContext cannot be null");
}
//List allReferences = new ArrayList(signedInfo.getReferences());
SignedInfo si = getSignedInfo();
List refList = si.getReferences();
for (int i = 0, size = refList.size(); i < size; i++) {
Reference ref = (Reference) refList.get(i);
ref.digest(xMLSignContext);
}
Key signingKey = null;
KeySelectorResult keySelectoResult = null;
try {
sm = si.getSignatureMethod();
keySelectoResult = xMLSignContext.getKeySelector().select(getKeyInfo(),KeySelector.Purpose.SIGN,sm,xMLSignContext);
signingKey = keySelectoResult.getKey();
if (signingKey == null) {
throw new XMLSignatureException("The KeySelector"+ xMLSignContext.getKeySelector()+ " did not " +
"find the key used for signing");
}
} catch (KeySelectorException kse) {
throw new XMLSignatureException("Cannot find signing key", kse);
}
if(_sp == null){
try {
JAXBContext jc = JAXBUtil.getJAXBContext();
_sp = new SignatureProcessor();
_sp.setJAXBContext(jc);
_sp.setCryptoContext(xMLSignContext);
} catch (Exception ex) {
throw new XMLSignatureException(ex);
}
}
String signatureAlgo = sm.getAlgorithm();
//SignatureValue sv=getSignatureValue();
String algo = getRSASignatureAlgorithm(signatureAlgo);
if(algo != null){
try {
com.sun.xml.ws.security.opt.crypto.dsig.SignatureValue sigValue = new com.sun.xml.ws.security.opt.crypto.dsig.SignatureValue();
sigValue.setValue(_sp.performRSASign(signingKey,signedInfo,algo));
setSignatureValue(sigValue);
//((SignatureValueType)getSignatureValue()).setValue(_sp.performRSASign(signingKey,signedInfo));
//((SignatureValueType)sv).setValue(_sp.performRSASign(signingKey,signedInfo));
} catch (InvalidKeyException ex) {
throw new XMLSignatureException(ex);
}
} else if(signatureAlgo.equals(SignatureMethod.DSA_SHA1)){
try {
com.sun.xml.ws.security.opt.crypto.dsig.SignatureValue sigValue = new com.sun.xml.ws.security.opt.crypto.dsig.SignatureValue();
sigValue.setValue(_sp.performDSASign(signingKey,signedInfo));
setSignatureValue(sigValue);
//((SignatureValueType)sv).setValue(_sp.performDSASign(signingKey,signedInfo));
} catch (InvalidKeyException ex) {
throw new XMLSignatureException(ex);
}
} else if ( signatureAlgo.equals(SignatureMethod.HMAC_SHA1)) {
SignatureMethodParameterSpec params = (SignatureMethodParameterSpec)sm.getParameterSpec();
int outputLength = -1;
if (params != null) {
if (!(params instanceof HMACParameterSpec)) {
throw new XMLSignatureException
("SignatureMethodParameterSpec must be of type HMACParameterSpec");
}
outputLength = ((HMACParameterSpec) params).getOutputLength();
}
try{
com.sun.xml.ws.security.opt.crypto.dsig.SignatureValue sigValue = new com.sun.xml.ws.security.opt.crypto.dsig.SignatureValue();
sigValue.setValue(_sp.performHMACSign(signingKey,signedInfo, outputLength));
setSignatureValue(sigValue);
} catch (InvalidKeyException ex) {
throw new XMLSignatureException(ex);
}
} else {
throw new XMLSignatureException("Unsupported signature algorithm found");
}
}
public KeySelectorResult getKeySelectorResult() {
return null;
}
public boolean isFeatureSupported(String string) {
return false;
}
public SignatureValue getSignatureValue() {
return signatureValue;
}
public SignedInfo getSignedInfo() {
return this.signedInfo;
}
public KeyInfo getKeyInfo() {
return keyInfo;
}
public void setObjects(List<XMLObject> objects) {
this.objects = objects;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
private String getRSASignatureAlgorithm(String signatureAlgo) {
if (signatureAlgo.equals(SignatureMethod.RSA_SHA1)) {
return MessageConstants.RSA_SHA1;
} else if (signatureAlgo.equals(MessageConstants.RSA_SHA256_SIGMETHOD)) {
return MessageConstants.RSA_SHA256;
} else if (signatureAlgo.equals(MessageConstants.RSA_SHA384_SIGMETHOD)) {
return MessageConstants.RSA_SHA384;
} else if (signatureAlgo.equals(MessageConstants.RSA_SHA512_SIGMETHOD)) {
return MessageConstants.RSA_SHA512;
}
return null;
}
}