RE: AW: [dss-x] A question to the forum

Title: Message

Dear Detlef and Andreas,

 

Thanks for your comments.

 

I was only referring to the operation
where a document or data buffer (or xml structure) is fully given to the
signing server.

(I am not talking about a given hash
option where the digest algorithm is specified.

 

I only wanted to make sure that current
specification does not cover this configuration and if needed it can be an extension
(as Detlef mentioned).

 

In my opinion, it is something that
clients would like to have some control and not only be in the control of the
server and naturally I think it should be defined in the standard.

 

Thanks,

Ezer

 

-----Original Message-----

From: Andreas Kuehne
[mailto:] 

Sent: Monday, February 07, 2011
12:28 PM

To: ;
Ezer Farhi

Cc: 

Subject: Re: AW: [dss-x] A
question to the forum

 

Hmm, I would recommend to just leave it to the server
...

There may be tricky cross dependencies if you provide ready-made digest with a
different algorithm. Whta if this is different from the one denoted to be used
?

And what should the digest algorithm apply for ? For the document hashing or
the signature internal hash ? 

Should it be a hint or an advice ? What type of error should be returned in
case of an incompatibility ?

Greetings

Andreas

----- original Nachricht --------

Betreff: AW: [dss-x] A question to
the forum

Gesendet: Mo, 07. Feb 2011

Von: Dr. Detlef Hühnlein

Hallo Ezer,

 

in my point of view the explicit specification of the
hash algorithm to 

be used for the signature generation is very similar
to the explicit selection of 

a specific key (and hence implicitely signature
algorithm + hash algorithm), 

if there are multiple options available. Therefore I
would propose to use the 

KeySelector-structure (section 3.5.4 of the Core) and
simply define structures, 

which may appear in the Other-element. 

 

What do think about this approach?

 

BR,

Detlef 

 

 

Von:
Ezer Farhi [mailto:] 

Gesendet: Sonntag, 6. Februar 2011
11:03

An: 

Betreff: [dss-x] A question to the
forum

 

Hi,

 

I went over the DSS-core and could not find a way to
direct the server to use a certain hash mechanism when performing a CMS
signature or XML signature on a given document.

(When a hash is given it is possible to use the DigestMethod or the relevant
given hash).

Did anyone bump into such a request?

 

Thanks,

Ezer

 

--- original Nachricht Ende ----