
001package org.hl7.fhir.dstu3.utils; 002 003/* 004 Copyright (c) 2011+, HL7, Inc. 005 All rights reserved. 006 007 Redistribution and use in source and binary forms, with or without modification, 008 are permitted provided that the following conditions are met: 009 010 * Redistributions of source code must retain the above copyright notice, this 011 list of conditions and the following disclaimer. 012 * Redistributions in binary form must reproduce the above copyright notice, 013 this list of conditions and the following disclaimer in the documentation 014 and/or other materials provided with the distribution. 015 * Neither the name of HL7 nor the names of its contributors may be used to 016 endorse or promote products derived from this software without specific 017 prior written permission. 018 019 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 020 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 021 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 022 IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 023 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 024 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 025 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 026 WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 027 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 028 POSSIBILITY OF SUCH DAMAGE. 029 030 */ 031 032 033 034import java.io.ByteArrayInputStream; 035import java.io.IOException; 036import java.io.OutputStream; 037import java.security.InvalidAlgorithmParameterException; 038import java.security.KeyException; 039import java.security.KeyPair; 040import java.security.KeyPairGenerator; 041import java.security.NoSuchAlgorithmException; 042import java.util.Collections; 043 044import javax.xml.crypto.MarshalException; 045import javax.xml.crypto.dsig.CanonicalizationMethod; 046import javax.xml.crypto.dsig.DigestMethod; 047import javax.xml.crypto.dsig.Reference; 048import javax.xml.crypto.dsig.SignatureMethod; 049import javax.xml.crypto.dsig.SignedInfo; 050import javax.xml.crypto.dsig.Transform; 051import javax.xml.crypto.dsig.XMLSignature; 052import javax.xml.crypto.dsig.XMLSignatureException; 053import javax.xml.crypto.dsig.XMLSignatureFactory; 054import javax.xml.crypto.dsig.dom.DOMSignContext; 055import javax.xml.crypto.dsig.keyinfo.KeyInfo; 056import javax.xml.crypto.dsig.keyinfo.KeyInfoFactory; 057import javax.xml.crypto.dsig.keyinfo.KeyValue; 058import javax.xml.crypto.dsig.spec.C14NMethodParameterSpec; 059import javax.xml.crypto.dsig.spec.TransformParameterSpec; 060import javax.xml.parsers.DocumentBuilder; 061import javax.xml.parsers.DocumentBuilderFactory; 062import javax.xml.parsers.ParserConfigurationException; 063 064import org.hl7.fhir.exceptions.FHIRException; 065import org.hl7.fhir.utilities.xml.XMLUtil; 066import org.hl7.fhir.utilities.xml.XmlGenerator; 067import org.w3c.dom.Document; 068import org.xml.sax.SAXException; 069 070@Deprecated 071@SuppressWarnings("checkstyle:systemout") 072public class DigitalSignatures { 073 074 075 public static void main(String[] args) throws SAXException, IOException, ParserConfigurationException, NoSuchAlgorithmException, InvalidAlgorithmParameterException, KeyException, MarshalException, XMLSignatureException, FHIRException, org.hl7.fhir.exceptions.FHIRException { 076 // http://docs.oracle.com/javase/7/docs/technotes/guides/security/xmldsig/XMLDigitalSignature.html 077 // 078 byte[] inputXml = "<Envelope xmlns=\"urn:envelope\">\r\n</Envelope>\r\n".getBytes(); 079 // load the document that's going to be signed 080 DocumentBuilderFactory dbf = XMLUtil.newXXEProtectedDocumentBuilderFactory(); 081 dbf.setNamespaceAware(true); 082 DocumentBuilder builder = dbf.newDocumentBuilder(); 083 Document doc = builder.parse(new ByteArrayInputStream(inputXml)); 084 085 // create a key pair 086 KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA"); 087 kpg.initialize(2048); 088 KeyPair kp = kpg.generateKeyPair(); 089 090 // sign the document 091 DOMSignContext dsc = new DOMSignContext(kp.getPrivate(), doc.getDocumentElement()); 092 XMLSignatureFactory fac = XMLSignatureFactory.getInstance("DOM"); 093 094 Reference ref = fac.newReference("", fac.newDigestMethod(DigestMethod.SHA1, null), Collections.singletonList(fac.newTransform(Transform.ENVELOPED, (TransformParameterSpec) null)), null, null); 095 SignedInfo si = fac.newSignedInfo(fac.newCanonicalizationMethod(CanonicalizationMethod.INCLUSIVE, (C14NMethodParameterSpec) null), fac.newSignatureMethod(SignatureMethod.RSA_SHA1, null), Collections.singletonList(ref)); 096 097 KeyInfoFactory kif = fac.getKeyInfoFactory(); 098 KeyValue kv = kif.newKeyValue(kp.getPublic()); 099 KeyInfo ki = kif.newKeyInfo(Collections.singletonList(kv)); 100 XMLSignature signature = fac.newXMLSignature(si, ki); 101 signature.sign(dsc); 102 103 OutputStream os = System.out; 104 new XmlGenerator().generate(doc.getDocumentElement(), os); 105 } 106}