IllegalArgumentException: unknown object in getInstance: org.bouncycastle.asn1.DERTaggedObject

[IrynaZhumatiy]

Hello All,
I use BouncyCastle 1.57 version, the next .jar files:

• bcprov-ext-jdk15on-1.57.jar
• bcpkix-jdk15on-1.57.jar
• bcmail-jdk15on-1.57.jar
• bcprov-jdk15on-1.57.jar.
  I have some issue during call ASN1Sequence.getInstance.
  My code:
  ASN1Primitive obj = null; try { obj = (new ASN1InputStream(new ByteArrayInputStream(value)).readObject()); } catch (java.io.IOException e) { SystemLog.logException("Failure while getting alternative sequence", e); } ASN1Sequence seq = ASN1Sequence.getInstance(obj);
  I get the exception:
  Caused by: java.lang.IllegalArgumentException: unknown object in getInstance: org.bouncycastle.asn1.DERTaggedObject
  at org.bouncycastle.asn1.ASN1Sequence.getInstance(Unknown Source).

Could you please help me with this?
What I do wrong?
Thanks!

Regards,
Iryna

The object isn't a sequence. It might be a tagged sequence, but it isn't a sequence.

Also, use either bcprov-ext or bcprov - not both. You will get classpath conflicts otherwise.

[IrynaZhumatiy]

Thanks a lot.
I've resolved this exception.
It was my mistake.
The problem was in certificate.

[ibaskine]

@IrynaZhumatiy
I am seeing similar exception so can you please explain what exactly was wrong with your certificate?

[IrynaZhumatiy]

@ibaskine I don't remember well.
I see in my code:
ASN1Primitive oct = null;
try {
oct = new ASN1InputStream(new ByteArrayInputStream(value)).readObject();
}
catch (java.io.IOException e) {
SystemLog.logException("Failure while getting alternative sequence", e);
}
ASN1Sequence seq = ASN1Sequence.getInstance(oct);
The same when I created a ticket.
So I think I used an advice from @bcgit :
"The object isn't a sequence. It might be a tagged sequence, but it isn't a sequence.
Also, use either bcprov-ext or bcprov - not both. You will get classpath conflicts otherwise."