Source Code Cross Referenced for POPOPrivKey.java in  » Authentication-Authorization » ejbca » com » novosec » pkix » asn1 » crmf » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Authentication Authorization » ejbca » com.novosec.pkix.asn1.crmf 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        // CMP implementation copyright (c) 2003 NOVOSEC AG (http://www.novosec.com)
002:        //
003:        // Author: Maik Stohn
004:        //
005:        // Permission is hereby granted, free of charge, to any person obtaining a copy of this 
006:        // software and associated documentation files (the "Software"), to deal in the Software 
007:        // without restriction, including without limitation the rights to use, copy, modify, merge, 
008:        // publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons 
009:        // to whom the Software is furnished to do so, subject to the following conditions: 
010:        //
011:        // The above copyright notice and this permission notice shall be included in all copies or 
012:        // substantial portions of the Software. 
013:        //
014:        // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING 
015:        // BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
016:        // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
017:        // DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
018:        // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 
019:
020:        package com.novosec.pkix.asn1.crmf;
021:
022:        import org.bouncycastle.asn1.ASN1TaggedObject;
023:        import org.bouncycastle.asn1.DERBitString;
024:        import org.bouncycastle.asn1.DEREncodable;
025:        import org.bouncycastle.asn1.DERInteger;
026:        import org.bouncycastle.asn1.DERObject;
027:        import org.bouncycastle.asn1.DERTaggedObject;
028:
029:        /**
030:         * ASN.1 structure DER En/DeCoder.
031:         *
032:         * <pre>
033:         *
034:         *   POPOPrivKey ::= CHOICE {
035:         *       thisMessage       [0] BIT STRING,        -- posession is proven in this message (which contains the private key itself (encrypted for the CA))
036:         *       subsequentMessage [1] SubsequentMessage, -- possession will be proven in a subsequent message (INTEGER)
037:         *       dhMAC             [2] BIT STRING }       -- for keyAgreement (only), possession is proven in this message (which contains a MAC (over the DER-encoded value of the
038:         *                                                -- certReq parameter in CertReqMsg, which MUST include both subject and publicKey) based on a key derived from the end entity's
039:         *                                                -- private DH key and the CA's public DH key); the dhMAC value MUST be calculated as per the directions given in Appendix A.
040:         *   
041:         *   SubsequentMessage ::= INTEGER {
042:         *       encrCert (0),        -- requests that resulting certificate be encrypted for the end entity (following which, POP will be proven in a confirmation message)
043:         *       challengeResp (1) }  -- requests that CA engage in challenge-response exchange with end entity in order to prove private key possession 
044:         *
045:         * </pre>
046:         */
047:        public class POPOPrivKey implements  DEREncodable {
048:            DEREncodable obj;
049:            int tag;
050:
051:            public POPOPrivKey(DERObject obj, int tag) {
052:                this .obj = obj;
053:                this .tag = tag;
054:            }
055:
056:            public DERBitString getThisMessage() {
057:                if (this .tag != 0)
058:                    return null;
059:                return (DERBitString) this .obj;
060:            }
061:
062:            public DERInteger getSubsequentMessage() {
063:                if (this .tag != 1)
064:                    return null;
065:                return (DERInteger) this .obj;
066:            }
067:
068:            public DERBitString getDhMAC() {
069:                if (this .tag != 2)
070:                    return null;
071:                return (DERBitString) this .obj;
072:            }
073:
074:            public static POPOPrivKey getInstance(DERObject obj) {
075:                return getInstance((ASN1TaggedObject) obj, true);
076:            }
077:
078:            public static POPOPrivKey getInstance(ASN1TaggedObject tagObj,
079:                    boolean explicit) {
080:                int tag = tagObj.getTagNo();
081:
082:                switch (tag) {
083:                case 0:
084:                    return new POPOPrivKey(DERBitString.getInstance(tagObj
085:                            .getObject()), 0);
086:                case 1:
087:                    return new POPOPrivKey(DERInteger.getInstance(tagObj
088:                            .getObject()), 1);
089:                case 2:
090:                    return new POPOPrivKey(DERBitString.getInstance(tagObj
091:                            .getObject()), 2);
092:                }
093:
094:                throw new IllegalArgumentException("unknown tag: " + tag);
095:            }
096:
097:            public DERObject getDERObject() {
098:                return new DERTaggedObject(true, tag, obj);
099:            }
100:
101:            public String toString() {
102:                return "POPOPrivKey: (" + obj + ")";
103:            }
104:        }
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