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From: Jesper Angelo on 27 Jul 2010 23:28
Hi,

I'm trying to convert an array of bytes ( byte[] ) into an ASN.1 DER
encoded memory stream:

public static Stream ASN1(byte[] b)
{
Asn1Encodable Asn1Obj;
using (var input = new Asn1InputStream(b))
{
input.Position = 0;
Asn1Obj = input.ReadObject();
}

var ms = new MemoryStream();
var outputDer = new DerOutputStream(ms);
outputDer.WriteObject(Asn1Obj);
outputDer.Flush();
return ms;
}

However the Asn1InputStream.ReadObject() method only reads until
position 22 of the original data (regardless of what data i feed it).

Is there something I'm totally missing here regarding the ReadObject method?


Thanks,

Jesper Angelo
jesper(a)angelo.net
From: Thomas on 28 Jul 2010 00:04
Hello,
I don't know anything about whatever language you are using here
(java ? urgh), but is the "b" array representing a DER object ? If
not, ReadObject is not appropriate. Are you sure you understand the
purpose of ReadObject ? I might be wrong but it seems to me you are
doing a terrible mistake here. Surely there is a documentation and
code samples on the internet ... I can't help you further because I
refuse to dwell into the abomination that is java (for me, that is).
Probably someone that uses BouncyCastle often can help you.
From: Jesper Angelo on 28 Jul 2010 02:15
On 7/27/2010 9:04 PM, Thomas wrote:
> Hello,
> I don't know anything about whatever language you are using here
> (java ? urgh), but is the "b" array representing a DER object ? If
> not, ReadObject is not appropriate. Are you sure you understand the
> purpose of ReadObject ? I might be wrong but it seems to me you are
> doing a terrible mistake here. Surely there is a documentation and
> code samples on the internet ... I can't help you further because I
> refuse to dwell into the abomination that is java (for me, that is).
> Probably someone that uses BouncyCastle often can help you.

It's C#

Thanks, I'll check b again. Guess something is fishy in there...

j-


From: rossum on 28 Jul 2010 09:58
On Tue, 27 Jul 2010 20:28:27 -0700, Jesper Angelo <jesper(a)angelo.net>
wrote:

>Hi,
>
>I'm trying to convert an array of bytes ( byte[] ) into an ASN.1 DER
>encoded memory stream:
>
> public static Stream ASN1(byte[] b)
> {
> Asn1Encodable Asn1Obj;
> using (var input = new Asn1InputStream(b))
> {
> input.Position = 0;
> Asn1Obj = input.ReadObject();
> }
>
> var ms = new MemoryStream();
> var outputDer = new DerOutputStream(ms);
> outputDer.WriteObject(Asn1Obj);
> outputDer.Flush();
> return ms;
> }
>
>However the Asn1InputStream.ReadObject() method only reads until
>position 22 of the original data (regardless of what data i feed it).
>
>Is there something I'm totally missing here regarding the ReadObject method?
>
>
>Thanks,
>
>Jesper Angelo
>jesper(a)angelo.net
From what I remember of C#, ReadObject() is for reading a serialized
object back in. Unless your input is a serialized Asn1Encodable you
are likely to have problems. Is there a simple Read() or ReadBytes()?
Either of those may be more suitable.

Have you tried microsoft.public.dotnet.languages.csharp? I know
microsoft have stopped supporting it but it is still going independent
of MS.

rossum

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