Hi!
I need to send a sign message with .pdf file as attachment from Linux
MTA server
(the message can be empty).
Do you know how to do it? Is openssl suitable tool for it?
I tried these steps:
-> /usr/bin/uuencode -m file.pdf file.pdf > codefile.code
-> openssl smime -sign -text -binary -in codefile.code -out smime.p7s
-signer some.pem -inkey somekey.pem
-> I corrected smime.p7s file by vi editor - the MIME attachment header:
MIME-Version: 1.0
Content-Type: multipart/signed;
protocol="application/x-pkcs7-signature"; micalg=sha1;
boundary="----87C3A5C3C
DB2C00CE1827FA76401CFB5"
This is an S/MIME signed message
------87C3A5C3CDB2C00CE1827FA76401CFB5
Content-Type: application/pdf; name="file.pdf"
Content-Transfer-Encoding: base64
Content-Description: file.pdf
Content-Disposition: attachment; filename="file.pdf"
<CRLF>
begin-base64 644 file.pdf
JVBERi0xLjQNCjEgMCBvYmoNCjw8DQovUHJvZHVjZXIgKCkNCi9BdXRob3Ig
KCkNCi9DcmVhdGlvbkRhdGUgKEQ6MjAwNzExMjMxMTM0NTcpDQovQ3JlYXRv
ciAoKQ0KL0tleXdvcmRzICgpDQovU3ViamVjdCAoKQ0KL1RpdGxlICgpDQov
etc.
-> And when I sent this file via script:
#!/bin/bash
ADR=/tmp
SOUBOR=$ADR/some.txt
#
/bin/echo "From: Pepa Dolni Lhota <[EMAIL PROTECTED]>" > $SOUBOR
/bin/echo "To: [EMAIL PROTECTED]" >> $SOUBOR
/bin/echo "Subject: Sign file file.pdf is in attachment" >> $SOUBOR
/bin/echo "Reply-to: [EMAIL PROTECTED]" >> $SOUBOR
/bin/echo "Errors-to: [EMAIL PROTECTED]" >> $SOUBOR
#
/bin/echo " " >> $SOUBOR
/bin/cat $ADR/smime.p7s >> $SOUBOR
/bin/echo " " >> $SOUBOR
#
/usr/sbin/sendmail.sendmail -t -F [EMAIL PROTECTED] < $SOUBOR
exit 0
#
-> MUA client (Thunderbird) obtained message O.K. Certificate is good
for reading, but reading of the attachment ended with error:
Failed to load document (error 3) 'file:///home/someone/file.pdf'
When I open e-mail via Ctrl+U all seems to be all right.
Be so kind and try to get me some help how sign and send ".pdf"
attachment.
Thank you very much and best regards,
Sonenberk
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