ietf-smime
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2000-06-08 12:58:10
Erik,

I changed the second message to opaque-signed and removed the second
header
but still no getting a security warning that the message has been
tampered
with.

"Content-Type:
application/pkcs7-mime;smime-type=opaque-signed;name=smime.p7m" + vbCrLf
"Content-Transfer-Encoding: base64" + vbCrLf
"Content-Disposition: attachment;" + vbCrLf + "
filename=""smime.p7m"""
+ vbCrLf + vbCrLf
Encoded message

Any other ideas on how to make this work? Thanks.

Lisa


----- Original Message -----
From: "Erik Neuenschwander" <erikn(_at_)stanford(_dot_)edu 
<mailto:erikn(_at_)stanford(_dot_)edu>>
To: "Hellrung, Lisa" <LHellrung(_at_)rgare(_dot_)com 
<mailto:LHellrung(_at_)rgare(_dot_)com>>
Sent: Thursday, June 08, 2000 2:16 PM
Subject: Re: Signed message


This should be opaque-signed, the second kind, the kind that you say
gives
you errors. How does this one turn out?

see my one inline comment

----- Original Message -----
From: "Hellrung, Lisa" <LHellrung(_at_)rgare(_dot_)com 
<mailto:LHellrung(_at_)rgare(_dot_)com>>
To: <ietf-smime(_at_)imc(_dot_)org <mailto:ietf-smime(_at_)imc(_dot_)org>>
Sent: Thursday, June 08, 2000 11:52 AM
Subject: Signed message


I was wondering if someone could help me out with the syntax of a
signed
message? I am able to send signed and encrypted e-mail but if I only
sign
that e-mail, it will either show up in Outlook and Outlook Express
as a
regular message or signed but "Message has been tampered with"
error.

When sent with

"Content-Type: multipart/signed;
protocol="application/x-pkcs7-signature";
micalg=SHA1;
boundary="=====NextPart_qaNWAwffsV5PxkAy7ndv"

Message

"Content-Type: application/x-pkcs7-signature;" + vbCrLf + "
name=""smime.p7s""" + vbCrLf
"Content-Transfer-Encoding: base64" + vbCrLf
"Content-Disposition: attachment;" + vbCrLf + "
filename=""smime.p7s""" + vbCrLf + vbCrLf
Encoded signed message

It appears as a normal mail message.

When sent with

"Content-Type:
application/pkcs7-mime;smime-type=signed-data;name=smime.p7m"
+ vbCrLf
"Content-Type: application/pkcs7-mime;" & vbCrLf + "
name=""smime.p7m""" + vbCrLf
^^^^^^^^^^^^
Where is this second Content-Type header coming from?

"Content-Transfer-Encoding: base64" + vbCrLf
"Content-Disposition: attachment;" + vbCrLf + "
filename=""smime.p7m"""
+ vbCrLf + vbCrLf
encoded message

It appears as signed but invalid because message has been tampered
with.


If anyone could help me to correct this problem, I would greatly
appreciate
it.

Also, the first message works when later encrypted. Thanks.






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