ExtendedKeyUsage


1   
2   package com.ca.commons.security.cert.extensions;
3   
4   import java.util.Hashtable  ;
5   import com.ca.commons.security.asn1.*;
6   
7   /**
8    * <pre>
9    * ExtKeyUsageSyntax ::= SEQUENCE SIZE (1..MAX) OF KeyPurposeId
10   *
11   * KeyPurposeId ::= OBJECT IDENTIFIER
12   *
13   * serverAuth (1 3 6 1 5 5 7 3 1) -- TLS Web server authentication
14   * clientAuth (1 3 6 1 5 5 7 3 2) -- TLS Web client authentication
15   * codeSigning (1 3 6 1 5 5 7 3 3) -- Code signing
16   * emailProtection (1 3 6 1 5 5 7 3 4) -- E-mail protection
17   * ipsecEndSystem (1 3 6 1 5 5 7 3 5) -- IP security end system
18   * ipsecTunnel (1 3 6 1 5 5 7 3 6) -- IP security tunnel termination
19   * ipsecUser (1 3 6 1 5 5 7 3 7) -- IP security user
20   * timeStamping (1 3 6 1 5 5 7 3 8) -- Timestamping
21   * OCSP Signing (1 3 6 1 5 5 7 3 9) -- OCSP Signing
22   * smartCard Logon (1 3 6 1 4 1 311 20 2 2) -- Smart Card Logon
23   * </pre>
24   *
25   * @author vbui
26   */
27  public class ExtendedKeyUsage implements V3Extension
28  {
29      String   value = null;
30  
31      public void init(ASN1Object asn1object) throws Exception  
32      {
33          if (!asn1object.isASN1Type(ASN1Type.SEQUENCE))
34              throw new Exception  ("Wrong ASN.1 type for ExtendedKeyUsage");
35  
36          for (int i = 0; i < asn1object.size(); i++)
37          {
38              Object   pur = asn1object.getComponent(i).getValue();
39              if ( pur instanceof String   ) {  // if not, it's not in table !
40                  String   spur = (String  ) pur;
41                  spur = ASN1OID.getName(spur);
42                  if (spur != null) {
43                      if (value == null)
44                          value = spur;
45                      else
46                          value = value + "\n" + spur;
47                  }
48              }
49          }
50      }
51  
52      public String   toString()
53      {
54          return value;
55      }
56  }
57  
58
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