[stunnel-users] Allowing only TLS 1.2 and 1.3

Sat Aug 1 22:34:48 CEST 2020

Hi, 

Thank you,
In fact it works. the diagnostic tool i was using has an error,
confirmed instead with nmap, 

Thanks! 

On 2020-07-30 10:32, STOSSE Florian (SAFRAN AEROSYSTEMS) wrote:

> Hello all, 
> 
> I currently use the following parameters to achieve exactly the same objective: 
> 
> sslVersionMin = TLSv1.2 
> 
> sslVersionMax = TLSv1.3 
> 
> In fact, here is my full tls.conf file: 
> 
> ; TLS Configuration file 
> 
> sslVersionMin = TLSv1.2 
> 
> sslVersionMax = TLSv1.3 
> 
> ciphersuites = TLS_AES_128_GCM_SHA256:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_256_GCM_SHA384 
> 
> ciphers = ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384 
> 
> curves = X25519:P-256:X448:P-521:P-384 
> 
> options = NO_COMPRESSION 
> 
> options = NO_TICKET 
> 
> Nothing fancy, and it works as expected. Maybe you are overriding your parameters somewhere else ? 
> 
> Best regards, 
> 
> Florian Stosse 
> 
> Information security engineer 
> 
> Safran Electronics & Defense | Safran Data Systems | Space & Communication 
> 
> Phone: +33 1 69 82 79 43 * Mobile : +33 6 48 11 16 12 
> 
> Safran Data Systems 
> 
> 5, avenue des Andes - CS 90101 
> 
> 91978 Courtaboeuf Cedex, France 
> 
> www.safran-electronics-defense.com 
> 
> De : stunnel-users [mailto:stunnel-users-bounces at stunnel.org] De la part de Jorge Bastos
> Envoyé : jeudi 30 juillet 2020 10:17
> À : Thomas Eifert
> Cc : stunnel-users at stunnel.org
> Objet : Re: [stunnel-users] Allowing only TLS 1.2 and 1.3 
> 
> Howdy, 
> 
> ; Use sslVersionMax or sslVersionMin option instead of disabling specific TLS protocol versions when compiled
> ;           with OpenSSL 1.1.0 or later.
> 
> sslVersionMin = TLSv1.2 
> 
> Produced no efect, openssl is 1.1.1g 
> 
> any idea? 
> 
> On 2020-07-30 0:54, Thomas Eifert wrote: 
> 
> P.S.
> 
> There's also an sslVersionMax  if you feel you need it.
> 
> On 7/29/2020 5:20 PM, Jorge Bastos wrote: 
> 
> Howdy, 
> 
> I've been trying to configure stunnel to provide only TLS 1.2 and 1.3, but no sucess.
> I have the configuration bellow, what could i be doing wrong? 
> 
> Thanks in advanced, 
> 
> sslVersion = all
> options    = NO_SSLv2
> options    = NO_SSLv3
> options    = NO_TLSv1
> options    = NO_TLSv1.1 
> 
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> 
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> 
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> 
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> 
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