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package org.spongycastle.asn1.test;
import java.io.IOException;
import java.security.SecureRandom;
import org.spongycastle.asn1.ASN1InputStream;
import org.spongycastle.asn1.ASN1Primitive;
import org.spongycastle.asn1.ASN1TaggedObject;
import org.spongycastle.asn1.DERApplicationSpecific;
import org.spongycastle.util.encoders.Base64;
import org.spongycastle.util.encoders.Hex;
import org.spongycastle.util.test.SimpleTest;
/**
* X.690 test example
*/
public class TagTest
extends SimpleTest
{
byte[] longTagged = Base64.decode(
"ZSRzIp8gEEZFRENCQTk4NzY1NDMyMTCfIQwyMDA2MDQwMTEyMzSUCCAFERVz"
+ "A4kCAHEXGBkalAggBRcYGRqUCCAFZS6QAkRFkQlURUNITklLRVKSBQECAwQF"
+ "kxAREhMUFRYXGBkalAggBREVcwOJAgBxFxgZGpQIIAUXGBkalAggBWUukAJE"
+ "RZEJVEVDSE5JS0VSkgUBAgMEBZMQERITFBUWFxgZGpQIIAURFXMDiQIAcRcY"
+ "GRqUCCAFFxgZGpQIIAVlLpACREWRCVRFQ0hOSUtFUpIFAQIDBAWTEBESExQV"
+ "FhcYGRqUCCAFERVzA4kCAHEXGBkalAggBRcYGRqUCCAFFxgZGpQIIAUXGBka"
+ "lAg=");
byte[] longAppSpecificTag = Hex.decode("5F610101");
public String getName()
{
return "Tag";
}
public void performTest()
throws IOException
{
ASN1InputStream aIn = new ASN1InputStream(longTagged);
DERApplicationSpecific app = (DERApplicationSpecific)aIn.readObject();
aIn = new ASN1InputStream(app.getContents());
app = (DERApplicationSpecific)aIn.readObject();
aIn = new ASN1InputStream(app.getContents());
ASN1TaggedObject tagged = (ASN1TaggedObject)aIn.readObject();
if (tagged.getTagNo() != 32)
{
fail("unexpected tag value found - not 32");
}
tagged = (ASN1TaggedObject)ASN1Primitive.fromByteArray(tagged.getEncoded());
if (tagged.getTagNo() != 32)
{
fail("unexpected tag value found on recode - not 32");
}
tagged = (ASN1TaggedObject)aIn.readObject();
if (tagged.getTagNo() != 33)
{
fail("unexpected tag value found - not 33");
}
tagged = (ASN1TaggedObject)ASN1Primitive.fromByteArray(tagged.getEncoded());
if (tagged.getTagNo() != 33)
{
fail("unexpected tag value found on recode - not 33");
}
aIn = new ASN1InputStream(longAppSpecificTag);
app = (DERApplicationSpecific)aIn.readObject();
if (app.getApplicationTag() != 97)
{
fail("incorrect tag number read");
}
app = (DERApplicationSpecific)ASN1Primitive.fromByteArray(app.getEncoded());
if (app.getApplicationTag() != 97)
{
fail("incorrect tag number read on recode");
}
SecureRandom sr = new SecureRandom();
for (int i = 0; i < 100; ++i)
{
int testTag = sr.nextInt() >>> (1 + (sr.nextInt() >>> 1) % 26);
app = new DERApplicationSpecific(testTag, new byte[]{ 1 });
app = (DERApplicationSpecific)ASN1Primitive.fromByteArray(app.getEncoded());
if (app.getApplicationTag() != testTag)
{
fail("incorrect tag number read on recode (random test value: " + testTag + ")");
}
}
}
public static void main(
String[] args)
{
runTest(new TagTest());
}
}
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