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From "Stefan (JIRA)" <j...@apache.org>
Subject [jira] [Created] (WSS-399) WSS4J: cannot set DigestMethod for KEYTRANSPORT_RSAOEP though requested by W3C
Date Wed, 08 Aug 2012 16:24:20 GMT
Stefan created WSS-399:
--------------------------

             Summary: WSS4J: cannot set DigestMethod for KEYTRANSPORT_RSAOEP though requested
by W3C
                 Key: WSS-399
                 URL: https://issues.apache.org/jira/browse/WSS-399
             Project: WSS4J
          Issue Type: Bug
          Components: WSS4J Core
    Affects Versions: 1.6.7
         Environment: any
            Reporter: Stefan
            Assignee: Colm O hEigeartaigh


As stated on http://www.w3.org/TR/xmlenc-core/#sec-RSA-OAEP (and http://java.net/projects/metro/lists/users/archive/2008-05/message/12)
there should be the possibility to set the message digest that is listed as MANDATORY (and
shall be set in the generated output).

QUOTE:
5.4.2 RSA-OAEP

Identifier:
    http://www.w3.org/2001/04/xmlenc#rsa-oaep-mgf1p (REQUIRED)

The RSAES-OAEP-ENCRYPT algorithm, as specified in RFC 2437 [PKCS1], takes three parameters.
The two user specified parameters are a MANDATORY message digest function and an OPTIONAL
encoding octet string OAEPparams. The message digest function is indicated by the Algorithm
attribute of a child ds:DigestMethod element and the mask generation function, the third parameter,
is always MGF1 with SHA1 (mgf1SHA1Identifier). Both the message digest and mask generation
functions are used in the EME-OAEP-ENCODE operation as part of RSAES-OAEP-ENCRYPT. The encoding
octet string is the base64 decoding of the content of an optional OAEPparams child element
. If no OAEPparams child is provided, a null string is used.


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