1package org.bouncycastle.asn1.pkcs;
2
3import java.math.BigInteger;
4
5import org.bouncycastle.asn1.ASN1EncodableVector;
6import org.bouncycastle.asn1.ASN1Integer;
7import org.bouncycastle.asn1.ASN1Object;
8import org.bouncycastle.asn1.ASN1Primitive;
9import org.bouncycastle.asn1.ASN1Sequence;
10import org.bouncycastle.asn1.BERSequence;
11
12/**
13 * the infamous Pfx from PKCS12
14 */
15public class Pfx
16    extends ASN1Object
17    implements PKCSObjectIdentifiers
18{
19    private ContentInfo             contentInfo;
20    private MacData                 macData = null;
21
22    private Pfx(
23        ASN1Sequence   seq)
24    {
25        BigInteger  version = ((ASN1Integer)seq.getObjectAt(0)).getValue();
26        if (version.intValue() != 3)
27        {
28            throw new IllegalArgumentException("wrong version for PFX PDU");
29        }
30
31        contentInfo = ContentInfo.getInstance(seq.getObjectAt(1));
32
33        if (seq.size() == 3)
34        {
35            macData = MacData.getInstance(seq.getObjectAt(2));
36        }
37    }
38
39    public static Pfx getInstance(
40        Object  obj)
41    {
42        if (obj instanceof Pfx)
43        {
44            return (Pfx)obj;
45        }
46
47        if (obj != null)
48        {
49            return new Pfx(ASN1Sequence.getInstance(obj));
50        }
51
52        return null;
53    }
54
55    public Pfx(
56        ContentInfo     contentInfo,
57        MacData         macData)
58    {
59        this.contentInfo = contentInfo;
60        this.macData = macData;
61    }
62
63    public ContentInfo getAuthSafe()
64    {
65        return contentInfo;
66    }
67
68    public MacData getMacData()
69    {
70        return macData;
71    }
72
73    public ASN1Primitive toASN1Primitive()
74    {
75        ASN1EncodableVector v = new ASN1EncodableVector();
76
77        v.add(new ASN1Integer(3));
78        v.add(contentInfo);
79
80        if (macData != null)
81        {
82            v.add(macData);
83        }
84
85        return new BERSequence(v);
86    }
87}
88