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Date: Mon, 13 Aug 2012 21:00:38 +1100 (NCT)
From: "Colm O hEigeartaigh (JIRA)" <jira@apache.org>
To: dev@ws.apache.org
Message-ID: <2138526979.1175.1344852038168.JavaMail.jiratomcat@arcas>
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Subject: [jira] [Commented] (WSS-399) WSS4J: cannot set DigestMethod for
 KEYTRANSPORT_RSAOEP though requested by W3C
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    [ https://issues.apache.org/jira/browse/WSS-399?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13433033#comment-13433033 ] 

Colm O hEigeartaigh commented on WSS-399:
-----------------------------------------


In WSS4J 1.6.8 you will be able to configure a digest algorithm to use with RSA OAEP either programmatically via WSSecEncrypt or else via the "encryptionDigestAlgorithm" configuration tag.

Colm.
                
> 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
>             Fix For: 1.6.8
>
>
> 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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