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-rw-r--r--id.server/src/at/gv/egovernment/moa/id/auth/parser/ECDSAKeyValueConverter.java350
1 files changed, 0 insertions, 350 deletions
diff --git a/id.server/src/at/gv/egovernment/moa/id/auth/parser/ECDSAKeyValueConverter.java b/id.server/src/at/gv/egovernment/moa/id/auth/parser/ECDSAKeyValueConverter.java
deleted file mode 100644
index c28cfac76..000000000
--- a/id.server/src/at/gv/egovernment/moa/id/auth/parser/ECDSAKeyValueConverter.java
+++ /dev/null
@@ -1,350 +0,0 @@
-package at.gv.egovernment.moa.id.auth.parser;
-
-import iaik.security.ecc.ecdsa.ECDSAParameter;
-import iaik.security.ecc.ecdsa.ECPublicKey;
-import iaik.security.ecc.math.ecgroup.ECGroupFactory;
-import iaik.security.ecc.math.ecgroup.ECPoint;
-import iaik.security.ecc.math.ecgroup.EllipticCurve;
-import iaik.security.ecc.math.ecgroup.ProjectiveCoordinate;
-import iaik.security.ecc.math.field.Field;
-import iaik.security.ecc.math.field.FieldElement;
-import iaik.security.ecc.math.field.FieldFactory;
-import iaik.security.ecc.math.field.Value;
-import iaik.security.ecc.parameter.ECCParameterFactory;
-import iaik.security.ecc.spec.ECCParameterSpec;
-import java.math.BigInteger;
-import java.security.PublicKey;
-import java.util.HashMap;
-import java.util.Iterator;
-import java.util.Vector;
-import java.net.URL;
-import org.w3c.dom.Attr;
-import org.w3c.dom.Element;
-import org.w3c.dom.NamedNodeMap;
-import org.w3c.dom.Node;
-import org.w3c.dom.NodeList;
-
-import at.gv.egovernment.moa.util.Constants;
-
-/**
- * @author Stefan Knirsch
- * @version $Id$
- *
- */
-public class ECDSAKeyValueConverter
-{
- /** Namespaces */
- public static final String NAMESPACE_XSI = "http://www.w3.org/2001/XMLSchema-instance";
-
- /**
- * Method element2ECDSAPublicKey.
- * @param keyValueElem a DomElement containing an ECDSA Public Key
- * @return PublicKey a java.security.publicKey - object
- * @throws Exception on any error
- */
-
- public static PublicKey element2ECDSAPublicKey(Element keyValueElem) throws Exception
- {
- String ecdsaNS = Constants.ECDSA_NS_URI;
- // Domain parameters
- Element domainParams = getChildElement(keyValueElem, ecdsaNS, "DomainParameters", 1);
- if (domainParams == null) throw new Exception("Domain parameters must not be implicit.");
- Element namedCurve = getChildElement(domainParams, ecdsaNS, "NamedCurve", 1);
- ECCParameterSpec eccParameterSpec;
- if (namedCurve != null)
- {
- URL curveNameURN = new URL(namedCurve.getAttributeNS(null, "URN"));
- ECCParameterFactory eccParamFactory = ECCParameterFactory.getInstance();
- eccParameterSpec = eccParamFactory.getParameterByOID(curveNameURN.getPath().substring(4));
- }
- else
- {
- Element excplicitParams = getChildElement(domainParams, ecdsaNS, "ExplicitParams", 1);
- Element fieldParams = getChildElement(excplicitParams, ecdsaNS, "FieldParams", 1);
- Element curveParams = getChildElement(excplicitParams, ecdsaNS, "CurveParams", 1);
- Element basePointParams = getChildElement(excplicitParams, ecdsaNS, "BasePointParams", 1);
-
- // Field parameters
- String fieldParamsTypeStr = fieldParams.getAttributeNS(NAMESPACE_XSI, "type");
- String ecdsaNSPrefix = getECDSANSPrefix(fieldParams);
- BigInteger p = null;
- int fieldParamsType = 0;
- final int FIELD_TYPE_PRIME = 1;
- final int FIELD_TYPE_TNB = 2;
- final int FIELD_TYPE_PNB = 3;
- int m = -1, k = -1, k1 = -1, k2 = -1, k3 = -1;
- if (fieldParamsTypeStr.equals(ecdsaNSPrefix + ":PrimeFieldParamsType"))
- {
- fieldParamsType = FIELD_TYPE_PRIME;
- String pStr = getChildElementText(fieldParams, ecdsaNS, "P", 1);
- p = new BigInteger(pStr, 10);
- }
- else if (fieldParamsTypeStr.equals(ecdsaNSPrefix + ":TnBFieldParamsType"))
- {
- fieldParamsType = FIELD_TYPE_TNB;
- String mStr = getChildElementText(fieldParams, ecdsaNS, "M", 1);
- m = Integer.parseInt(mStr);
- String kStr = getChildElementText(fieldParams, ecdsaNS, "K", 1);
- k = Integer.parseInt(kStr);
- }
- else if (fieldParamsTypeStr.equals(ecdsaNSPrefix + ":PnBFieldParamsType"))
- {
- fieldParamsType = FIELD_TYPE_PNB;
- String mStr = getChildElementText(fieldParams, ecdsaNS, "M", 1);
- m = Integer.parseInt(mStr);
- String k1Str = getChildElementText(fieldParams, ecdsaNS, "K1", 1);
- k1 = Integer.parseInt(k1Str);
- String k2Str = getChildElementText(fieldParams, ecdsaNS, "K2", 1);
- k2 = Integer.parseInt(k2Str);
- String k3Str = getChildElementText(fieldParams, ecdsaNS, "K3", 1);
- k3 = Integer.parseInt(k3Str);
- }
- else throw new Exception("Unknown field parameters.");
-
- // Curve parameters
- Element aElem = getChildElement(curveParams, ecdsaNS, "A", 1);
- String aStr = aElem.getAttributeNS(null, "Value");
- Element bElem = getChildElement(curveParams, ecdsaNS, "B", 1);
- String bStr = bElem.getAttributeNS(null, "Value");
- String seedStr = getChildElementText(curveParams, ecdsaNS, "Seed", 1);
- BigInteger seed = (seedStr != null) ? new BigInteger(seedStr, 10) : null;
-
- // Base point parameters
- Element basePoint = getChildElement(basePointParams, ecdsaNS, "BasePoint", 1);
- Element basePointXElem = getChildElement(basePoint, ecdsaNS, "X", 1);
- String basePointXStr = basePointXElem.getAttributeNS(null, "Value");
- Element basePointYElem = getChildElement(basePoint, ecdsaNS, "Y", 1);
- String basePointYStr = basePointYElem.getAttributeNS(null, "Value");
- String orderStr = getChildElementText(basePointParams, ecdsaNS, "Order", 1);
- BigInteger order = new BigInteger(orderStr, 10);
- String cofactorStr = getChildElementText(basePointParams, ecdsaNS, "Cofactor", 1);
- BigInteger cofactor = (cofactorStr != null) ? new BigInteger(cofactorStr, 10) : null;
-
- if (fieldParamsType == FIELD_TYPE_PRIME)
- {
- BigInteger a = new BigInteger(aStr, 10);
- BigInteger b = new BigInteger(bStr, 10);
- BigInteger basePointX = new BigInteger(basePointXStr, 10);
- BigInteger basePointY = new BigInteger(basePointYStr, 10);
- eccParameterSpec = new ECCParameterSpec(p, cofactor, order, seed, null, a, b, basePointX,
- basePointY, null);
- }
- else
- {
- int[] irreducible = new int[m/32 + ((m % 32 != 0) ? 1 : 0)];
- if (fieldParamsType == FIELD_TYPE_TNB)
- {
- irreducible[m/32] = 1 << m % 32;
- irreducible[k/32] += 1 << k % 32;
- irreducible[0] += 1;
- }
- else
- {
- irreducible[m/32] = 1 << m % 32;
- irreducible[k3/32] += 1 << k3 % 32;
- irreducible[k2/32] += 1 << k2 % 32;
- irreducible[k1/32] += 1 << k1 % 32;
- irreducible[0] += 1;
- }
- eccParameterSpec = new ECCParameterSpec(irreducible, cofactor, order, octetString2IntArray(aStr),
- octetString2IntArray(bStr), octetString2IntArray(basePointXStr),
- octetString2IntArray(basePointYStr), null);
- }
- }
-
- // Public key
- Element publicKeyElem = getChildElement(keyValueElem, ecdsaNS, "PublicKey", 1);
- Element publicKeyXElem = getChildElement(publicKeyElem, ecdsaNS, "X", 1);
- String publicKeyXStr = publicKeyXElem.getAttributeNS(null, "Value");
- Element publicKeyYElem = getChildElement(publicKeyElem, ecdsaNS, "Y", 1);
- String publicKeyYStr = publicKeyYElem.getAttributeNS(null, "Value");
-
- ECDSAParameter ecdsaParams = new ECDSAParameter(eccParameterSpec, false);
- ECGroupFactory ecGroupFactory = ECGroupFactory.getInstance();
- EllipticCurve eCurve = ecGroupFactory.getCurveWithProjective(eccParameterSpec.getA(),
- eccParameterSpec.getB(), eccParameterSpec.getR());
- Field field = eCurve.getField();
-
- // Detect type of public key field elements
- String elementType = publicKeyXElem.getAttributeNS(NAMESPACE_XSI, "type");
- String elementTypeLocalName = elementType.substring(elementType.indexOf(':') + 1);
- int FIELD_TYPE_PRIME = 1, FIELD_TYPE_CHAR_TWO = 2;
- int fieldElemType = ("PrimeFieldElemType".equals(elementTypeLocalName))
- ? FIELD_TYPE_PRIME
- : FIELD_TYPE_CHAR_TWO;
-
- FieldElement publicKeyPointX, publicKeyPointY;
- if (fieldElemType == FIELD_TYPE_PRIME)
- {
- Value xValue = FieldFactory.getInstance().getPrimeFieldValue(new BigInteger(publicKeyXStr, 10));
- publicKeyPointX = field.newElement(xValue);
- Value yValue = FieldFactory.getInstance().getPrimeFieldValue(new BigInteger(publicKeyYStr, 10));
- publicKeyPointY = field.newElement(yValue);
- }
- else
- {
- publicKeyPointX = field.newElement(octetString2ByteArray(publicKeyXStr));
- publicKeyPointY = field.newElement(octetString2ByteArray(publicKeyYStr));
- }
- ProjectiveCoordinate publicKeyPointCoordinate = new ProjectiveCoordinate(publicKeyPointX,
- publicKeyPointY, field.getONEelement());
- ECPoint publicKeyPoint = eCurve.newPoint(publicKeyPointCoordinate);
- ECPublicKey publicKey = new ECPublicKey(ecdsaParams, publicKeyPoint);
-
- return publicKey;
- }
-
- /**
- * Method getECDSANSPrefix.
- * @param element to get the prefix
- * @return String the prefix
- */
- private static String getECDSANSPrefix(Element element)
- {
- // FIXXME: Review this function (GK, 11.06.2002) - should return a list of strings, since more than
- // one NS prefix can be bound to the ECDSA namespace
-
- HashMap inScopeNSAttrs = getInScopeNSAttrs(element);
- Iterator inScopeNSAttrsIt = inScopeNSAttrs.keySet().iterator();
- while (inScopeNSAttrsIt.hasNext())
- {
- Attr currentAttr = (Attr)inScopeNSAttrs.get(inScopeNSAttrsIt.next());
- if (Constants.ECDSA_NS_URI.equals(currentAttr.getValue()))
- {
- return ("xmlns".equals(currentAttr.getNodeName())) ? "" : currentAttr.getNodeName().substring(6);
- }
- }
- return null;
- }
-
- /**
- * Method octetString2IntArray.
- * Converts an octet string representation into an int array as needed for the IAIK ECC library
- * @param octetString rightmost byte is least significant byte
- * @return int[] rightmost byte is LEAST significant byte
- */
- private static int[] octetString2IntArray(String octetString)
- {
- int byteCount = octetString.length()/2;
- int[] intArray = new int[byteCount/4 + ((byteCount % 4 != 0) ? 1 : 0)];
- for (int i = 0; i < byteCount; i++)
- {
- int oSStartPos = octetString.length() - (i + 1) * 2;
- int currentByte = Integer.parseInt(octetString.substring(oSStartPos, oSStartPos + 2), 16);
- intArray[i/4] += (currentByte & 0xFF) << ((i % 4) * 8);
- }
- return intArray;
- }
-
- /**
- * Converts an octet string representation into a byte array as needed for the IAIK ECC library
- * @param octetString rightmost byte is least significant byte
- * @return byte[] rightmost byte is MOST significant byte
- */
- private static byte[] octetString2ByteArray(String octetString)
- {
- int byteCount = octetString.length()/2;
- byte[] byteArray = new byte[byteCount];
- for (int i = 0; i < byteCount; i++)
- {
- int oSStartPos = octetString.length() - (i + 1) * 2;
- byteArray[byteCount - i - 1] = (byte) Integer.parseInt(octetString.substring(
- oSStartPos, oSStartPos + 2), 16);
- }
- return byteArray;
- }
-
- /**
- * Method evenStringLength.
- * @param hexString
- * @return String
- */
-
- private static String evenStringLength(String hexString)
- {
- return (hexString.length() % 2 != 0) ? "0" + hexString : hexString;
- }
-
- /**
- * Method getChildElement.
- * @param parent
- * @param namespace
- * @param localName
- * @param instance
- * @return Element
- */
-
- private static Element getChildElement(Element parent, String namespace, String localName,
- int instance)
- {
- NodeList namedElements = parent.getElementsByTagNameNS(namespace, localName);
- if (namedElements.getLength() < instance) return null;
- return (Element)namedElements.item(instance - 1);
- }
-
- /**
- * Method getChildElementText.
- * @param parent Element
- * @param namespace String
- * @param localName String
- * @param instance int
- * @return String
- */
-
- private static String getChildElementText(Element parent, String namespace, String localName,
- int instance)
- {
- Element child = getChildElement(parent, namespace, localName, instance);
- if (child == null) return null;
- NodeList childNodes = child.getChildNodes();
- int nodeCount = 0;
- while (nodeCount < childNodes.getLength())
- {
- Node currentNode = childNodes.item(nodeCount);
- if (currentNode.getNodeType() == Node.TEXT_NODE) return currentNode.getNodeValue();
- nodeCount++;
- }
- return null;
- }
-
- /**
- * Method getInScopeNSAttrs.
- * @param element element
- * @return HashMap
- */
- public static HashMap getInScopeNSAttrs(Element element)
- {
- // Get all ancestors of element
- Vector ancestors = new Vector();
- ancestors.add(element);
- Node currentAncestor = element;
- while ((currentAncestor = currentAncestor.getParentNode()) != null &&
- currentAncestor.getNodeType() == Node.ELEMENT_NODE)
- {
- ancestors.add(currentAncestor);
- }
-
- // Scan all ancestors for NS attributes
- HashMap inScopeNSAttrs = new HashMap();
- for (int i = ancestors.size() - 1; i >= 0; i--)
- {
- Element currentAncestorElem = (Element)ancestors.get(i);
- NamedNodeMap attrs = currentAncestorElem.getAttributes();
- for (int j = 0; j < attrs.getLength(); j++)
- {
- Attr currentAttr = (Attr)attrs.item(j);
- String currentAttrName = currentAttr.getNodeName();
- if ("xmlns".equals(currentAttrName) || currentAttrName.startsWith("xmlns:"))
- {
- inScopeNSAttrs.put(currentAttrName, currentAttr);
- }
- }
- }
-
- // Check if default NS attribute is in list; if value is empty remove it from list
- Attr defaultNSAttr = (Attr)inScopeNSAttrs.get("xmlns");
- if (defaultNSAttr != null && "".equals(defaultNSAttr.getValue())) inScopeNSAttrs.remove("xmlns");
-
- return inScopeNSAttrs;
- }
-} \ No newline at end of file
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