Subject: looking for you

From: "Bertha" <[email-masked]>
Date: Fri, 30 Jun 2006 17:27:15 -1100

Hello my dear friend
I was looking through the web few weeks ago and found 
your profile. Now I decided to email you to get to know
byou better. I am coming to your country in few weeks
and thought may be we can meet each other. I am pretty
looking girl. I am 25. Do not reply to this address 
directly. Email me back at [email-masked]

Content-class: urn:content-classes:message
Subject: Spring ActiOn! PricEs as lOwEr as nEvEr! [email-masked]
Date: Fri, 30 Jun 2006 10:14:16 -0000
From: "Catalina" <[email-masked]>
To: [email-masked]
Sender: [email-masked]

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  <http://oabvjv.plumageruby.info/?88489722>=20
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color=3Dblack><span
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src=3D"cid:[email-masked]"></span></font></a><o:p></o:p><=
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Content-ID: <[email-masked]>
Content-Description: image141.gif
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R0lGODdhaQA2ACIAACwAAAAAaQA2AIIAAAD4+PgAAAAAAAAAAAAAAAAAAAAAAAAD4Ri63P4w
ykmrvTjrzbv/YCiOZGmeaKqubOu+cCzPdG3feK7vfO//wKBwSCwaj8ikcslsOp/QqHRKrVqv
AYB2oe16uYCGd+zoZhXmSvrxDYUZ7zeaW57T79n4RS6H+0F9Z4J2eWKEhH16Fnx1hh+BioiD
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/1YSAAA7w are yRNDS[o,0,O]u brRNDS[o,0,O] ?
I am ready to kill myself and eat my dog, if medicine prices here (http://oabvjv.plumageruby.info/?88489722) are bad. 
Look, the site and call me 1-800 if its wrong..

My dog and I are still alive :)]
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To: [email-masked]
Cc: [email-masked]
From: [email-masked]
Subject: I-D ACTION:draft-ietf-smime-bfibecms-00.txt 
Date: Thu, 29 Jun 2006 15:50:03 -0400
Sender: [email-masked]

--NextPart

A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the S/MIME Mail Security Working Group of the IETF.

	Title		: Using the Boneh-Franklin identity-based encryption algorithm with the Cryptographic Message Syntax (CMS)  
	Author(s)	: M. Schertler
	Filename	: draft-ietf-smime-bfibecms-00.txt
	Pages		: 11
	Date		: 2006-6-29
	
This document describes the conventions for using the Boneh-Franklin 
identity-based encryption (BF-IBE) algorithm in the Cryptographic 
Message Syntax (CMS). The BF-IBE algorithm supports the transport of 
symmetric keys to encrypt content encryption keys. Object 
identifiers and the convention for encoding a recipient�s identity 
are also defined. 

A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-ietf-smime-bfibecms-00.txt

To remove yourself from the I-D Announcement list, send a message to 
[email-masked] with the word unsubscribe in the body of the message.  
You can also visit https://www1.ietf.org/mailman/listinfo/I-D-announce 
to change your subscription settings.

Internet-Drafts are also available by anonymous FTP. Login with the username
"anonymous" and a password of your e-mail address. After logging in,
type "cd internet-drafts" and then
	"get draft-ietf-smime-bfibecms-00.txt".

A list of Internet-Drafts directories can be found in
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or ftp://ftp.ietf.org/ietf/1shadow-sites.txt

Internet-Drafts can also be obtained by e-mail.

Send a message to:
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In the body type:
	"FILE /internet-drafts/draft-ietf-smime-bfibecms-00.txt".
	
NOTE:	The mail server at ietf.org can return the document in
	MIME-encoded form by using the "mpack" utility.  To use this
	feature, insert the command "ENCODING mime" before the "FILE"
	command.  To decode the response(s), you will need "munpack" or
	a MIME-compliant mail reader.  Different MIME-compliant mail readers
	exhibit different behavior, especially when dealing with
	"multipart" MIME messages (i.e. documents which have been split
	up into multiple messages), so check your local documentation on
	how to manipulate these messages.

Below is the data which will enable a MIME compliant mail reader
implementation to automatically retrieve the ASCII version of the
Internet-Draft.

--NextPart
Content-Type: Multipart/Alternative; Boundary="OtherAccess"

--OtherAccess
Content-Type: Message/External-body;
	access-type="mail-server";
	server="[email-masked]"

Content-Type: text/plain
Content-ID:	<[email-masked]>

ENCODING mime
FILE /internet-drafts/draft-ietf-smime-bfibecms-00.txt

--OtherAccess
Content-Type: Message/External-body;
	name="draft-ietf-smime-bfibecms-00.txt";
	site="ftp.ietf.org";
	access-type="anon-ftp";
	directory="internet-drafts"

Content-Type: text/plain
Content-ID:	<[email-masked]>

--OtherAccess--

--NextPart--

To: [email-masked]
Cc: [email-masked]
From: [email-masked]
Subject: I-D ACTION:draft-ietf-smime-ibcs-00.txt 
Date: Wed, 28 Jun 2006 15:50:02 -0400
Sender: [email-masked]

--NextPart

A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the S/MIME Mail Security Working Group of the IETF.

	Title		: Identity-Based Cryptography Standard (IBCS) #1: Supersingular Curve Implementations of the BF and BB1 Cryptosystems 
	Author(s)	: L. Martin, X. Boyen
	Filename	: draft-ietf-smime-ibcs-00.txt
	Pages		: 65
	Date		: 2006-6-28
	
This document describes the algorithms that implement Boneh-Franklin 
and Boneh-Boyen Identity-based Encryption. This document is in part 
based on IBCS #1 v2 of Voltage Security�s Identity-based Cryptography 
Standards (IBCS) documents.  

A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-ietf-smime-ibcs-00.txt

To remove yourself from the I-D Announcement list, send a message to 
[email-masked] with the word unsubscribe in the body of the message.  
You can also visit https://www1.ietf.org/mailman/listinfo/I-D-announce 
to change your subscription settings.

Internet-Drafts are also available by anonymous FTP. Login with the username
"anonymous" and a password of your e-mail address. After logging in,
type "cd internet-drafts" and then
	"get draft-ietf-smime-ibcs-00.txt".

A list of Internet-Drafts directories can be found in
http://www.ietf.org/shadow.html 
or ftp://ftp.ietf.org/ietf/1shadow-sites.txt

Internet-Drafts can also be obtained by e-mail.

Send a message to:
	[email-masked].
In the body type:
	"FILE /internet-drafts/draft-ietf-smime-ibcs-00.txt".
	
NOTE:	The mail server at ietf.org can return the document in
	MIME-encoded form by using the "mpack" utility.  To use this
	feature, insert the command "ENCODING mime" before the "FILE"
	command.  To decode the response(s), you will need "munpack" or
	a MIME-compliant mail reader.  Different MIME-compliant mail readers
	exhibit different behavior, especially when dealing with
	"multipart" MIME messages (i.e. documents which have been split
	up into multiple messages), so check your local documentation on
	how to manipulate these messages.

Below is the data which will enable a MIME compliant mail reader
implementation to automatically retrieve the ASCII version of the
Internet-Draft.

--NextPart
Content-Type: Multipart/Alternative; Boundary="OtherAccess"

--OtherAccess
Content-Type: Message/External-body;
	access-type="mail-server";
	server="[email-masked]"

Content-Type: text/plain
Content-ID:	<[email-masked]>

ENCODING mime
FILE /internet-drafts/draft-ietf-smime-ibcs-00.txt

--OtherAccess
Content-Type: Message/External-body;
	name="draft-ietf-smime-ibcs-00.txt";
	site="ftp.ietf.org";
	access-type="anon-ftp";
	directory="internet-drafts"

Content-Type: text/plain
Content-ID:	<[email-masked]>

--OtherAccess--

--NextPart--

To: [email-masked]
Cc: [email-masked]
From: [email-masked]
Subject: I-D ACTION:draft-ietf-smime-ibearch-00.txt 
Date: Wed, 28 Jun 2006 15:50:02 -0400
Sender: [email-masked]

--NextPart

A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the S/MIME Mail Security Working Group of the IETF.

	Title		: Identity-based Encryption Architecture  
	Author(s)	: M. Schertler
	Filename	: draft-ietf-smime-ibearch-00.txt
	Pages		: 8
	Date		: 2006-6-28
	
This document describes the security architecture required to implement identity-based encryption, a public-key encryption technology that uses a user�s identity as a public key. 

A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-ietf-smime-ibearch-00.txt

To remove yourself from the I-D Announcement list, send a message to 
[email-masked] with the word unsubscribe in the body of the message.  
You can also visit https://www1.ietf.org/mailman/listinfo/I-D-announce 
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Internet-Drafts are also available by anonymous FTP. Login with the username
"anonymous" and a password of your e-mail address. After logging in,
type "cd internet-drafts" and then
	"get draft-ietf-smime-ibearch-00.txt".

A list of Internet-Drafts directories can be found in
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or ftp://ftp.ietf.org/ietf/1shadow-sites.txt

Internet-Drafts can also be obtained by e-mail.

Send a message to:
	[email-masked].
In the body type:
	"FILE /internet-drafts/draft-ietf-smime-ibearch-00.txt".
	
NOTE:	The mail server at ietf.org can return the document in
	MIME-encoded form by using the "mpack" utility.  To use this
	feature, insert the command "ENCODING mime" before the "FILE"
	command.  To decode the response(s), you will need "munpack" or
	a MIME-compliant mail reader.  Different MIME-compliant mail readers
	exhibit different behavior, especially when dealing with
	"multipart" MIME messages (i.e. documents which have been split
	up into multiple messages), so check your local documentation on
	how to manipulate these messages.

Below is the data which will enable a MIME compliant mail reader
implementation to automatically retrieve the ASCII version of the
Internet-Draft.

--NextPart
Content-Type: Multipart/Alternative; Boundary="OtherAccess"

--OtherAccess
Content-Type: Message/External-body;
	access-type="mail-server";
	server="[email-masked]"

Content-Type: text/plain
Content-ID:	<[email-masked]>

ENCODING mime
FILE /internet-drafts/draft-ietf-smime-ibearch-00.txt

--OtherAccess
Content-Type: Message/External-body;
	name="draft-ietf-smime-ibearch-00.txt";
	site="ftp.ietf.org";
	access-type="anon-ftp";
	directory="internet-drafts"

Content-Type: text/plain
Content-ID:	<[email-masked]>

--OtherAccess--

--NextPart--

To: [email-masked]
Cc: [email-masked]
From: [email-masked]
Subject: I-D ACTION:draft-ietf-smime-ibepkg-00.txt 
Date: Wed, 28 Jun 2006 15:50:02 -0400
Sender: [email-masked]

--NextPart

A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the S/MIME Mail Security Working Group of the IETF.

	Title		: Identity-based Encryption Private Key Request Protocol 
	Author(s)	: G. Appenzeller
	Filename	: draft-ietf-smime-ibepkg-00.txt
	Pages		: 11
	Date		: 2006-6-28
	
This document describes a protocol to request private keys from a 
Private Key Generator (PKG) for an identity-based encryption system.

A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-ietf-smime-ibepkg-00.txt

To remove yourself from the I-D Announcement list, send a message to 
[email-masked] with the word unsubscribe in the body of the message.  
You can also visit https://www1.ietf.org/mailman/listinfo/I-D-announce 
to change your subscription settings.

Internet-Drafts are also available by anonymous FTP. Login with the username
"anonymous" and a password of your e-mail address. After logging in,
type "cd internet-drafts" and then
	"get draft-ietf-smime-ibepkg-00.txt".

A list of Internet-Drafts directories can be found in
http://www.ietf.org/shadow.html 
or ftp://ftp.ietf.org/ietf/1shadow-sites.txt

Internet-Drafts can also be obtained by e-mail.

Send a message to:
	[email-masked].
In the body type:
	"FILE /internet-drafts/draft-ietf-smime-ibepkg-00.txt".
	
NOTE:	The mail server at ietf.org can return the document in
	MIME-encoded form by using the "mpack" utility.  To use this
	feature, insert the command "ENCODING mime" before the "FILE"
	command.  To decode the response(s), you will need "munpack" or
	a MIME-compliant mail reader.  Different MIME-compliant mail readers
	exhibit different behavior, especially when dealing with
	"multipart" MIME messages (i.e. documents which have been split
	up into multiple messages), so check your local documentation on
	how to manipulate these messages.

Below is the data which will enable a MIME compliant mail reader
implementation to automatically retrieve the ASCII version of the
Internet-Draft.

--NextPart
Content-Type: Multipart/Alternative; Boundary="OtherAccess"

--OtherAccess
Content-Type: Message/External-body;
	access-type="mail-server";
	server="[email-masked]"

Content-Type: text/plain
Content-ID:	<[email-masked]>

ENCODING mime
FILE /internet-drafts/draft-ietf-smime-ibepkg-00.txt

--OtherAccess
Content-Type: Message/External-body;
	name="draft-ietf-smime-ibepkg-00.txt";
	site="ftp.ietf.org";
	access-type="anon-ftp";
	directory="internet-drafts"

Content-Type: text/plain
Content-ID:	<[email-masked]>

--OtherAccess--

--NextPart--

To: [email-masked]
Cc: [email-masked]
From: [email-masked]
Subject: I-D ACTION:draft-ietf-smime-ibepps-00.txt 
Date: Wed, 28 Jun 2006 15:50:02 -0400
Sender: [email-masked]

--NextPart

A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the S/MIME Mail Security Working Group of the IETF.

	Title		: Identity-based Encryption Parameter and Policy Lookup 
	Author(s)	: G. Appenzeller
	Filename	: draft-ietf-smime-ibepps-00.txt
	Pages		: 11
	Date		: 2006-6-28
	
This document describes a protocol to obtain public parameters and 
policy information for an identity-based encryption system.   

A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-ietf-smime-ibepps-00.txt

To remove yourself from the I-D Announcement list, send a message to 
[email-masked] with the word unsubscribe in the body of the message.  
You can also visit https://www1.ietf.org/mailman/listinfo/I-D-announce 
to change your subscription settings.

Internet-Drafts are also available by anonymous FTP. Login with the username
"anonymous" and a password of your e-mail address. After logging in,
type "cd internet-drafts" and then
	"get draft-ietf-smime-ibepps-00.txt".

A list of Internet-Drafts directories can be found in
http://www.ietf.org/shadow.html 
or ftp://ftp.ietf.org/ietf/1shadow-sites.txt

Internet-Drafts can also be obtained by e-mail.

Send a message to:
	[email-masked].
In the body type:
	"FILE /internet-drafts/draft-ietf-smime-ibepps-00.txt".
	
NOTE:	The mail server at ietf.org can return the document in
	MIME-encoded form by using the "mpack" utility.  To use this
	feature, insert the command "ENCODING mime" before the "FILE"
	command.  To decode the response(s), you will need "munpack" or
	a MIME-compliant mail reader.  Different MIME-compliant mail readers
	exhibit different behavior, especially when dealing with
	"multipart" MIME messages (i.e. documents which have been split
	up into multiple messages), so check your local documentation on
	how to manipulate these messages.

Below is the data which will enable a MIME compliant mail reader
implementation to automatically retrieve the ASCII version of the
Internet-Draft.

--NextPart
Content-Type: Multipart/Alternative; Boundary="OtherAccess"

--OtherAccess
Content-Type: Message/External-body;
	access-type="mail-server";
	server="[email-masked]"

Content-Type: text/plain
Content-ID:	<[email-masked]>

ENCODING mime
FILE /internet-drafts/draft-ietf-smime-ibepps-00.txt

--OtherAccess
Content-Type: Message/External-body;
	name="draft-ietf-smime-ibepps-00.txt";
	site="ftp.ietf.org";
	access-type="anon-ftp";
	directory="internet-drafts"

Content-Type: text/plain
Content-ID:	<[email-masked]>

--OtherAccess--

--NextPart--

From: [email-masked]
To: [email-masked]
Subject: Delivery failed
Date: Fri, 16 Jun 2006 10:07:40 +0900
Sender: [email-masked]

This is a multi-part message in MIME format.

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Content-Type: text/plain;
	charset=us-ascii
Content-Transfer-Encoding: 7bit

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	name="ayvr.zip"
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
	filename="ayvr.zip"

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From: "Bonatti, Chris" <[email-masked]>
To: "=?iso-8859-1?Q?'Joachim_Abrahms=E9n'?=" <[email-masked]>
Cc: "'Paul Hoffman'" <[email-masked]>, <[email-masked]>, "'Ned Freed'" <[email-masked]>
Subject: RE: SV: MIME-Version or not?
Date: Wed, 7 Jun 2006 09:58:18 -0400
Organization: IECA, Inc.
Importance: Normal
Sender: [email-masked]

In theory, you're probably correct, but I think this is more of a
hidden assumption than a contradiction.  The operative assumption
seems to be that systems dealing with (a) and (b) might all use
CMS, they would not generally need to interoperate.  However,
this is not a very strong rationale for omitting the version.

Apart from the MIME design, I would say that the context of
whether the object is (a), (b) or (c) is usually quite clear from
the system context in which it's operating.  This kind of
discussion also occurred when we drafted RFCs 3854 and 3855 (CMS
with X.400).  On my secure e-mail client, I receive RFC 822
without exception.  On my X.400 client, I receive CMS wrapped
X.400 content without exception.  In my local file system, the
things I encrypt are files without exception.  The context is
clear in all cases, and never do the different cases need to
interoperate directly because they belong to different content
universes.  Now if you had some system that might handle RFC 822,
generalized MIME objects, and X.400 content and do something
sensible with each, you might have a problem (though I expect
differentiating these would not be hard anyway).  However, I have
never seen such a animal.

This is not so much a reason for omitting the MIME version, as a
explanation for where we are.

If you wanted to introduce this requirement, the trick would be
to do so in a way that does not declare the bulk of S/MIME
products already out there to be broken.

Regards,
Chris

-----Original Message-----
From: [email-masked]
[mailto:[email-masked]] On Behalf Of Joachim
Abrahms�n
Sent: Wednesday, June 07, 2006 07:32
To: Ned Freed
Cc: Paul Hoffman; [email-masked]
Subject: SV: SV: MIME-Version or not?

Well, I thought the RFC's where designed to handle all cases you
mention, i.e. (a), (b) and (c) below, even if we only use case
(a) for now. We prefer not to make any assumptions about the
contents of the inner object and would like to follow the RFC's
in order to achieve interoperability, even with implementors
outside our group (Swedish energy sector).

When I read section 3.1 of RFC 2311 (S/MIME v2) and RFC 3851
(S/MIME 3.1) I would say that 'MIME-Version' should be included
in both inner and outer MIME-entity as they are unrelated.

Should there be 'MIME-Version' or not in the _inner_ MIME-entity
of an S/MIME enveloped e-mail? Is there a contradiction between
the RFC's, or are we missing something?

Best regards

Joachim Abrahms�n

> Thank you for your response,

> please note that the question is whether the _inner_
MIME-entity 
> should
have
> MIME-Version included or not.

> They argue as follows:

> "Here are some arguments why the MIME-version header field
should not 
> be required in an inner entity of a S/MIME message. I have
chosen to 
> refer to the most recent RFC versions since these hopefully
address 
> some of the ambiguities of the preceding versions.

> In RFC 2045 (MIME Part One) chapter 3 "MIME Header Fields" the
formal 
> definition of "entity-headers" does not contain the version
header. 
> The version header is only part of "MIME-message-headers". And
since 
> RFC 3851 (S/MIME Version 3.1) concerns securing "MIME entities"
it 
> seems reasonable to require the "entity-headers" to be included
in the 
> inner MIME entity
but
> not the "MIME-message-headers". Of course the outer S/MIME
message 
> itself should have a version header. This itself implies (per 
> definition) that
the
> contents (inner entity) is a MIME entity which thereby is
described by 
> the "entity-headers" Content-Type etc."

> I would be very happy to settle, this.

The key question is whether or not the inner object can be (a) a
MIME object, (b) an RFC 822 message, or (c) Something else. If
only (a) is possible then you're dealing with a MIME entity and
the MIME version field is superfluous. If (b) or (c) are possible
then you're supposed to include the field and use it to tell
whether or not you're dealing with a MIME object. (In practice
most agents assume MIME is being used when they see a competent
content-type field, irrespective of MIME-Version. But this isn't
what the specifications call for.)

				Ned

From: =?iso-8859-1?Q?Joachim_Abrahms=E9n?= <[email-masked]>
To: "Ned Freed" <[email-masked]>
Cc: "Paul Hoffman" <[email-masked]>, <[email-masked]>
Subject: SV: SV: MIME-Version or not?
Date: Wed, 7 Jun 2006 13:32:27 +0200
Importance: Normal
Sender: [email-masked]

Well, I thought the RFC's where designed to handle all cases you mention,
i.e. (a), (b) and (c) below, even if we only use case (a) for now. We prefer
not to make any assumptions about the contents of the inner object and would
like to follow the RFC's in order to achieve interoperability, even with
implementors outside our group (Swedish energy sector).

When I read section 3.1 of RFC 2311 (S/MIME v2) and RFC 3851 (S/MIME 3.1) I
would say that 'MIME-Version' should be included in both inner and outer
MIME-entity as they are unrelated.

Should there be 'MIME-Version' or not in the _inner_ MIME-entity of an
S/MIME enveloped e-mail?
Is there a contradiction between the RFC's, or are we missing something?

Best regards

Joachim Abrahms�n

> Thank you for your response,

> please note that the question is whether the _inner_ MIME-entity should
have
> MIME-Version included or not.

> They argue as follows:

> "Here are some arguments why the MIME-version header field should not be
> required in an inner entity of a S/MIME message. I have chosen to refer to
> the most recent RFC versions since these hopefully address some of the
> ambiguities of the preceding versions.

> In RFC 2045 (MIME Part One) chapter 3 "MIME Header Fields" the formal
> definition of "entity-headers" does not contain the version header. The
> version header is only part of "MIME-message-headers". And since RFC 3851
> (S/MIME Version 3.1) concerns securing "MIME entities" it seems reasonable
> to require the "entity-headers" to be included in the inner MIME entity
but
> not the "MIME-message-headers". Of course the outer S/MIME message itself
> should have a version header. This itself implies (per definition) that
the
> contents (inner entity) is a MIME entity which thereby is described by the
> "entity-headers" Content-Type etc."

> I would be very happy to settle, this.

The key question is whether or not the inner object can be (a) a MIME
object, (b) an RFC 822 message, or (c) Something else. If only (a) is
possible then you're dealing with a MIME entity and the MIME version field
is superfluous. If (b) or (c) are possible then you're supposed to include
the field and use it to tell whether or not you're dealing with a MIME
object. (In practice most agents assume MIME is being used when they see
a competent content-type field, irrespective of MIME-Version. But this
isn't what the specifications call for.)

				Ned

From: [email-masked]
To: [email-masked]
Subject: Delivery reports about your e-mail
Date: Tue, 6 Jun 2006 21:43:49 +0900
Sender: [email-masked]

This is a multi-part message in MIME format.

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------=_NextPart_000_0009_5305ECAA.E5834F2D--

Cc: Paul Hoffman <[email-masked]>, [email-masked]
To: =?iso-8859-1?Q?Joachim_Abrahms=E9n?= <[email-masked]>
Date: Mon, 05 Jun 2006 11:03:25 -0700 (PDT)
From: Ned Freed <[email-masked]>
Subject: Re: SV: MIME-Version or not?
Sender: [email-masked]

> Thank you for your response,

> please note that the question is whether the _inner_ MIME-entity should have
> MIME-Version included or not.

> They argue as follows:

> "Here are some arguments why the MIME-version header field should not be
> required in an inner entity of a S/MIME message. I have chosen to refer to
> the most recent RFC versions since these hopefully address some of the
> ambiguities of the preceding versions.

> In RFC 2045 (MIME Part One) chapter 3 "MIME Header Fields" the formal
> definition of "entity-headers" does not contain the version header. The
> version header is only part of "MIME-message-headers". And since RFC 3851
> (S/MIME Version 3.1) concerns securing "MIME entities" it seems reasonable
> to require the "entity-headers" to be included in the inner MIME entity but
> not the "MIME-message-headers". Of course the outer S/MIME message itself
> should have a version header. This itself implies (per definition) that the
> contents (inner entity) is a MIME entity which thereby is described by the
> "entity-headers" Content-Type etc."

> I would be very happy to settle, this.

The key question is whether or not the inner object can be (a) a MIME
object, (b) an RFC 822 message, or (c) Something else. If only (a) is
possible then you're dealing with a MIME entity and the MIME version field
is superfluous. If (b) or (c) are possible then you're supposed to include
the field and use it to tell whether or not you're dealing with a MIME
object. (In practice most agents assume MIME is being used when they see
a competent content-type field, irrespective of MIME-Version. But this
isn't what the specifications call for.)

				Ned

From: =?iso-8859-1?Q?Joachim_Abrahms=E9n?= <[email-masked]>
To: "Paul Hoffman" <[email-masked]>, <[email-masked]>
Subject: SV: MIME-Version or not?
Date: Mon, 5 Jun 2006 15:04:29 +0200
Importance: Normal
Sender: [email-masked]

Thank you for your response,

please note that the question is whether the _inner_ MIME-entity should have
MIME-Version included or not.

They argue as follows:

"Here are some arguments why the MIME-version header field should not be
required in an inner entity of a S/MIME message. I have chosen to refer to
the most recent RFC versions since these hopefully address some of the
ambiguities of the preceding versions.

In RFC 2045 (MIME Part One) chapter 3 "MIME Header Fields" the formal
definition of "entity-headers" does not contain the version header. The
version header is only part of "MIME-message-headers". And since RFC 3851
(S/MIME Version 3.1) concerns securing "MIME entities" it seems reasonable
to require the "entity-headers" to be included in the inner MIME entity but
not the "MIME-message-headers". Of course the outer S/MIME message itself
should have a version header. This itself implies (per definition) that the
contents (inner entity) is a MIME entity which thereby is described by the
"entity-headers" Content-Type etc."

I would be very happy to settle, this.

Best regards

Joachim Abrahms�n

-----Ursprungligt meddelande-----
Fr�n: Paul Hoffman [mailto:[email-masked]]
Skickat: den 31 maj 2006 17:26
Till: Joachim Abrahms�n; [email-masked]
�mne: Re: MIME-Version or not?

At 5:14 PM +0200 5/31/06, Joachim Abrahms�n wrote:
>Hi,
>
>The energy sector in Sweden decided to use S/MIME for exchanging
>EDIFACT-messages between different actors, where an EDIFACT-message is
>encoded in an inner MIME-entity (RFC 1767). However, an interoperability
>issue have turned up.
>
>Some system developers have interpreted the RFC's as the 'MIME-Version'
>should only be included in the outer MIME-entity and not in the inner
>MIME-entity, while others have included 'MIME-Version' in both inner and
>outer MIME-entity.
>
>When I read section 3.1 of RFC 2311 (S/MIME v2) and RFC 3851 (S/MIME 3.1) I
>would say that 'MIME-Version' should be included in both inner and outer
>MIME-entity as they are unrelated.

That is certainly how I would interpret it. What is the logic of the
people who say that there should not be a MIME-version on the outer
message?

--Paul Hoffman, Director
--Internet Mail Consortium

To: [email-masked]
Cc: KIMURA <[email-masked]>
Subject: Comments on draft-ietf-smime-cades-01 
From: [email-masked]
Date: Thu, 1 Jun 2006 18:39:28 +0900
Sender: [email-masked]

Dear Pope and ietf-smime members,

Last year, 15 companies of ECOM members carried out the plugtest of RFC 3126
and ETSI TS 101 733 Version 1.5.1.
http://www.ecom.or.jp/LongTermStrage/en/project.html

On behalf of ECOM members, I would like to comment on the draft CAdES 01 based on
the result of this plugtest and issues examination.

#1 Protection of signer's document detached from the signature

In order to protect signer's document by Archive Timestamp in the case of
constituting external signatures, the following text should be added to 6.4.1.

"When the eContent within ecapContentInfo is absent in the case of constituting
external signatures, the ecapContentInfo should be calculated with DER as though
the eContent containing signer's document was present."

#2 Backward compatibility of Archive Timestamp

As for change of the hash calculation, a hash according to RFC3126 and that
according to draft CAdES 01 will be undistinguishable at the time of
verification. New notes 1) has been added to 6.4.1, but nothing is solved. So,
either of the following measures should be considered.
I recognize that (1) is the best and (3) is the last resort.

(1) Define another Archive Timestamp attribute
Although another OID, from which behavior such as hash calculation is different,
cannot be given to the current Archive Timestamp, another Archive Timestamp
attribute, for example, "Preservation Timestamp" attribute with new OID,
should be defined.

(2)Define a new "rfc3161 compatible" attribute as an unsigned attribute
This attribute is stored in the unsigned attribute of each Archive Timestamp
attribute. The attribute value is set to ASN.1 BOOLEAN, for example, and
"rfc3161 compatible" is defined as True (so, new hash calculation is defined as
false). When this attribute is omitted, it is regarded as True because of
backward compatibility.

(3)Define a boundary of time (for example, January 1, 2007)
If it is timestamped before the boundary of time, it is regarded as a hash
according to rfc3161. In consideration of a transition period, if verification
goes wrong, another hash calculation should be also tried.

#3 Evasion of misunderstanding about DER processing

It was specified to remove type and length before hash calculation in RFC3126,
but only concatenation is written and it is not written how it is made
(including doing nothing) in draft CAdES 01. So, some misunderstandings have
arisen. For example, does singed attribute need to perform the same DER
processing as the message digest calculation process of CMS?
Since unsigned attributes are also the target of hash calculation, is it
necessary to perform DER processing?

I would like to leave the exact expression in English to authors, but it seems
that a supplementary explanation which it wrote clearly "binary codes with type
and length are concatenated as it is, without DER processing" does not have
misunderstanding.

Best Regards,
Michihiro Kimura
NEC Corporation