tech.ydb.shaded.bouncycastle.asn1.tsp.EncryptionInfo Maven / Gradle / Ivy
package org.bouncycastle.asn1.tsp;
import org.bouncycastle.asn1.ASN1Encodable;
import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.ASN1TaggedObject;
/**
* Implementation of the EncryptionInfo element defined in RFC 4998:
*
* 1988 ASN.1 EncryptionInfo
*
* EncryptionInfo ::= SEQUENCE {
* encryptionInfoType OBJECT IDENTIFIER,
* encryptionInfoValue ANY DEFINED BY encryptionInfoType
* }
*
* 1997-ASN.1 EncryptionInfo
*
* EncryptionInfo ::= SEQUENCE {
* encryptionInfoType ENCINFO-TYPE.&id
* ({SupportedEncryptionAlgorithms}),
* encryptionInfoValue ENCINFO-TYPE.&Type
* ({SupportedEncryptionAlgorithms}{@encryptionInfoType})
* }
*
* ENCINFO-TYPE ::= TYPE-IDENTIFIER
*
* SupportedEncryptionAlgorithms ENCINFO-TYPE ::= {...}
*/
public class EncryptionInfo
extends ASN1Object
{
/**
* The OID for EncryptionInfo type.
*/
private ASN1ObjectIdentifier encryptionInfoType;
/**
* The value of EncryptionInfo
*/
private ASN1Encodable encryptionInfoValue;
public static EncryptionInfo getInstance(final ASN1Object obj)
{
if (obj instanceof EncryptionInfo)
{
return (EncryptionInfo)obj;
}
else if (obj != null)
{
return new EncryptionInfo(ASN1Sequence.getInstance(obj));
}
return null;
}
public static EncryptionInfo getInstance(
ASN1TaggedObject obj,
boolean explicit)
{
return getInstance(ASN1Sequence.getInstance(obj, explicit));
}
private EncryptionInfo(ASN1Sequence sequence)
{
if (sequence.size() != 2)
{
throw new IllegalArgumentException("wrong sequence size in constructor: " + sequence.size());
}
this.encryptionInfoType = ASN1ObjectIdentifier.getInstance(sequence.getObjectAt(0));
this.encryptionInfoValue = sequence.getObjectAt(1);
}
public EncryptionInfo(ASN1ObjectIdentifier encryptionInfoType,
ASN1Encodable encryptionInfoValue)
{
this.encryptionInfoType = encryptionInfoType;
this.encryptionInfoValue = encryptionInfoValue;
}
private EncryptionInfo()
{
}
public ASN1Primitive toASN1Primitive()
{
final ASN1EncodableVector v = new ASN1EncodableVector();
v.add(encryptionInfoType);
v.add(encryptionInfoValue);
return ASN1Sequence.getInstance(v);
}
}