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Diffstat (limited to 'smccSTAL/src/main/java/at/gv/egiz/bku/smccstal/DomainIdConverter.java')
-rw-r--r--smccSTAL/src/main/java/at/gv/egiz/bku/smccstal/DomainIdConverter.java85
1 files changed, 85 insertions, 0 deletions
diff --git a/smccSTAL/src/main/java/at/gv/egiz/bku/smccstal/DomainIdConverter.java b/smccSTAL/src/main/java/at/gv/egiz/bku/smccstal/DomainIdConverter.java
new file mode 100644
index 00000000..3a564b91
--- /dev/null
+++ b/smccSTAL/src/main/java/at/gv/egiz/bku/smccstal/DomainIdConverter.java
@@ -0,0 +1,85 @@
+/*
+* Copyright 2008 Federal Chancellery Austria and
+* Graz University of Technology
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package at.gv.egiz.bku.smccstal;
+
+import iaik.me.asn1.ASN1;
+import iaik.me.utils.Base64;
+
+import java.io.IOException;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.util.Vector;
+
+public class DomainIdConverter {
+
+ private static String getBaseId(ASN1 identityLink) throws IOException {
+
+ if (identityLink.getType() == ASN1.TYPE_SEQUENCE) {
+ ASN1 personData = identityLink.getElementAt(4);
+ if (personData.getType() == ASN1.TAG_CONTEXT_SPECIFIC) {
+ ASN1 physicalPersonData = personData.gvASN1();
+ ASN1 baseId = physicalPersonData.getElementAt(0);
+ return baseId.gvString();
+ }
+ throw new IOException("Invalid structure.");
+
+ }
+ throw new IOException("Invalid structure.");
+
+ }
+
+ private static ASN1 replaceBaseId(ASN1 identityLink, String newBaseId)
+ throws IOException {
+
+ ASN1 newIdentityLink = new ASN1(ASN1.TYPE_SEQUENCE, new Vector<ASN1>());
+ for (int i = 0; i < identityLink.getSize(); i++) {
+ ASN1 asn1 = identityLink.getElementAt(i);
+ if (i == 4 && asn1.getType() == ASN1.TAG_CONTEXT_SPECIFIC) {
+ ASN1 physicalPersonData = asn1.gvASN1();
+ ASN1 newPhysicalPersonData = new ASN1(ASN1.TYPE_SEQUENCE,
+ new Vector<ASN1>());
+ newPhysicalPersonData.addElement(new ASN1(ASN1.TYPE_UTF8_STRING,
+ newBaseId));
+ for (int j = 1; j < physicalPersonData.getSize(); j++) {
+ newPhysicalPersonData.addElement(physicalPersonData.getElementAt(j));
+ }
+ asn1 = new ASN1(ASN1.TAG_CONTEXT_SPECIFIC, newPhysicalPersonData);
+ }
+ newIdentityLink.addElement(asn1);
+ }
+ return newIdentityLink;
+
+ }
+
+ public static byte[] convertDomainId(byte[] data, String domainId)
+ throws IOException, NoSuchAlgorithmException {
+ if (domainId == null) {
+ return data;
+ }
+ ASN1 identityLink = new ASN1(data);
+ MessageDigest sha = null;
+ sha = MessageDigest.getInstance("SHA");
+ String base = getBaseId(identityLink);
+ sha.update((base + "+" + domainId).getBytes());
+ String bpkStr = new String(Base64.encode(sha.digest()));
+ bpkStr = bpkStr.trim();
+ identityLink = replaceBaseId(identityLink, bpkStr);
+ System.out.println(getBaseId(identityLink));
+ return identityLink.getEncoded();
+ }
+
+}