blob: 6580cd4d7f03adc3ea2e6ac16ff57938c87c6905 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
|
package org.bouncycastle.asn1.cms;
import org.bouncycastle.asn1.ASN1Choice;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.ASN1TaggedObject;
import org.bouncycastle.asn1.DERTaggedObject;
/**
* <a href="http://tools.ietf.org/html/rfc5652#section-6.2.2">RFC 5652</a>:
* Content encryption key delivery mechanisms.
* <p>
* <pre>
* KeyAgreeRecipientIdentifier ::= CHOICE {
* issuerAndSerialNumber IssuerAndSerialNumber,
* rKeyId [0] IMPLICIT RecipientKeyIdentifier }
* </pre>
*/
public class KeyAgreeRecipientIdentifier
extends ASN1Object
implements ASN1Choice
{
private IssuerAndSerialNumber issuerSerial;
private RecipientKeyIdentifier rKeyID;
/**
* Return an KeyAgreeRecipientIdentifier object from a tagged object.
*
* @param obj the tagged object holding the object we want.
* @param explicit true if the object is meant to be explicitly
* tagged false otherwise.
* @exception IllegalArgumentException if the object held by the
* tagged object cannot be converted.
*/
public static KeyAgreeRecipientIdentifier getInstance(
ASN1TaggedObject obj,
boolean explicit)
{
return getInstance(ASN1Sequence.getInstance(obj, explicit));
}
/**
* Return an KeyAgreeRecipientIdentifier object from the given object.
* <p>
* Accepted inputs:
* <ul>
* <li> {@link KeyAgreeRecipientIdentifier} object
* <li> {@link org.bouncycastle.asn1.ASN1Sequence#getInstance(java.lang.Object) ASN1Sequence} input formats with IssuerAndSerialNumber structure inside
* <li> {@link org.bouncycastle.asn1.ASN1TaggedObject#getInstance(java.lang.Object) ASN1TaggedObject} with tag value 0: a KeyAgreeRecipientIdentifier data structure
* </ul>
* <p>
* Note: no byte[] input!
*
* @param obj the object we want converted.
* @exception IllegalArgumentException if the object cannot be converted.
*/
public static KeyAgreeRecipientIdentifier getInstance(
Object obj)
{
if (obj == null || obj instanceof KeyAgreeRecipientIdentifier)
{
return (KeyAgreeRecipientIdentifier)obj;
}
if (obj instanceof ASN1Sequence)
{
return new KeyAgreeRecipientIdentifier(IssuerAndSerialNumber.getInstance(obj));
}
if (obj instanceof ASN1TaggedObject && ((ASN1TaggedObject)obj).getTagNo() == 0)
{
return new KeyAgreeRecipientIdentifier(RecipientKeyIdentifier.getInstance(
(ASN1TaggedObject)obj, false));
}
throw new IllegalArgumentException("Invalid KeyAgreeRecipientIdentifier: " + obj.getClass().getName());
}
public KeyAgreeRecipientIdentifier(
IssuerAndSerialNumber issuerSerial)
{
this.issuerSerial = issuerSerial;
this.rKeyID = null;
}
public KeyAgreeRecipientIdentifier(
RecipientKeyIdentifier rKeyID)
{
this.issuerSerial = null;
this.rKeyID = rKeyID;
}
public IssuerAndSerialNumber getIssuerAndSerialNumber()
{
return issuerSerial;
}
public RecipientKeyIdentifier getRKeyID()
{
return rKeyID;
}
/**
* Produce an object suitable for an ASN1OutputStream.
*/
public ASN1Primitive toASN1Primitive()
{
if (issuerSerial != null)
{
return issuerSerial.toASN1Primitive();
}
return new DERTaggedObject(false, 0, rKeyID);
}
}
|
