Hello,

I've tried changing the value of 'verify' to 0 & 1, in both cases I get the 
following:

2016.05.17 16:40:25 LOG3[285]: SSL_connect: 14090086: error:14090086:SSL 
routines:ssl3_get_server_certificate:certificate verify failed
2016.05.17 16:40:25 LOG5[285]: Connection reset: 0 byte(s) sent to SSL, 0 
byte(s) sent to socket
2016.05.17 16:40:25 LOG4[285]: Possible memory leak at 
.\crypto\asn1\tasn_new.c:179: 11859 allocations
2016.05.17 16:40:25 LOG4[285]: Possible memory leak at 
.\crypto\asn1\asn1_lib.c:408: 11241 allocations

Best Regards,
David.



David Faizulaev | PL/SQL Developer | T  +972 (3) 767 3026 | M +972 (54) 7314687

Centralized OT Security Management for Distributed SCADA/ICS Networks

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-----Original Message-----
From: stunnel-users [mailto:[email protected]] On Behalf Of 
Ludolf Holzheid
Sent: Tuesday, May 17, 2016 4:45 PM
To: [email protected]
Subject: Re: [stunnel-users] Configuring Stunnel to work between client and 
server - possible certificate issue

On Tue, 2016-05-17 13:33:31 +0000, David Faizulaev wrote:
> Between each certificate block I have the following block:
> 
> Bag Attributes
>     friendlyName: trustcenterclass2caii
>     2.16.840.1.113894.746875.1.1: <Unsupported tag 6> 
> subject=/C=DE/O=TC TrustCenter GmbH/OU=TC TrustCenter Class 2 CA/CN=TC 
> TrustCenter Class 2 CA II issuer=/C=DE/O=TC TrustCenter GmbH/OU=TC 
> TrustCenter Class 2 CA/CN=TC TrustCenter Class 2 CA II
> 
> possible cause?

No, this should be ignored as a comment.

But you instructed stunnel to check the peer's certificate against the trusted 
ones (verify = 2), and the certificate chain the peer presents ends with a 
certificate not found in the CA file.

Ludolf

-- 

Ludolf Holzheid
 
Bihl+Wiedemann GmbH
Floßwörthstraße 41
68199 Mannheim, Germany
 
Tel: +49 621 33996-0
Fax: +49 621 3392239
 
mailto:[email protected]
http://www.bihl-wiedemann.de
 
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Geschäftsführer: Jochen Bihl, Bernhard Wiedemann Amtsgericht Mannheim, HRB 5796 
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