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package org.spongycastle.cert.ocsp;
import java.io.OutputStream;
import org.spongycastle.asn1.DERNull;
import org.spongycastle.asn1.DEROctetString;
import org.spongycastle.asn1.ocsp.ResponderID;
import org.spongycastle.asn1.oiw.OIWObjectIdentifiers;
import org.spongycastle.asn1.x500.X500Name;
import org.spongycastle.asn1.x509.AlgorithmIdentifier;
import org.spongycastle.asn1.x509.SubjectPublicKeyInfo;
import org.spongycastle.operator.DigestCalculator;
/**
* Carrier for a ResponderID.
*/
public class RespID
{
public static final AlgorithmIdentifier HASH_SHA1 = new AlgorithmIdentifier(OIWObjectIdentifiers.idSHA1, DERNull.INSTANCE);
ResponderID id;
public RespID(
ResponderID id)
{
this.id = id;
}
public RespID(
X500Name name)
{
this.id = new ResponderID(name);
}
/**
* Calculate a RespID based on the public key of the responder.
*
* @param subjectPublicKeyInfo the info structure for the responder public key.
* @param digCalc a SHA-1 digest calculator.
* @throws OCSPException on exception creating ID.
*/
public RespID(
SubjectPublicKeyInfo subjectPublicKeyInfo,
DigestCalculator digCalc)
throws OCSPException
{
try
{
if (!digCalc.getAlgorithmIdentifier().equals(HASH_SHA1))
{
throw new IllegalArgumentException("only SHA-1 can be used with RespID");
}
OutputStream digOut = digCalc.getOutputStream();
digOut.write(subjectPublicKeyInfo.getPublicKeyData().getBytes());
digOut.close();
this.id = new ResponderID(new DEROctetString(digCalc.getDigest()));
}
catch (Exception e)
{
throw new OCSPException("problem creating ID: " + e, e);
}
}
public ResponderID toASN1Object()
{
return id;
}
public boolean equals(
Object o)
{
if (!(o instanceof RespID))
{
return false;
}
RespID obj = (RespID)o;
return id.equals(obj.id);
}
public int hashCode()
{
return id.hashCode();
}
}
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