AW: Does BC actually provide cipher suites unavailable in Java 7?

Hello,

IMHO you cannot add new ciphers to the existing JSSE provider (you can only replace existing implementations). So when you want to use BC for new ciphers you will also have to switch to the SSL implementations of BC.

Gruss
Bernd

Von: DiBaggio, Michael <[email protected]>
Gesendet: Montag, 1. Juli 2019 16:14
An: [email protected]
Betreff: [dev-crypto] Does BC actually provide cipher suites unavailable in Java 7?

Hi everyone. I haven’t pestered this list with my questions for several years, but I’m in a bind again.

I am supporting a product that, for now, is absolutely restricted to Java 7. However, we have an application that connects to NetSuite, and about a week ago, NetSuite stopped allowing access to any of the ciphersuites we support out of the box.

The ones we need to support are:

  *   ECDHE-RSA-AES128-GCM-SHA256
  *   ECDHE-RSA-AES256-GCM-SHA384
  *   AES128-GCM-SHA256
  *   AES256-GCM-SHA384
None of which are available in Java 7.

I copied the latest BCprov and BCtls jars into my jre/lib/ext, updated the java.security to list org.bouncycastle.jce.provider.BouncyCastleProvider and org.bouncycastle.jsse.provider.BouncyCastleJsseProvider as my first and second providers, and loaded the unlimited strength crypto policy jars. I then added the following arguments when I launch the application:
-Dhttps.protocols=TLSv1.2
-Dhttps.cipherSuites=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256

But I get an “unsupported cipher” exception.

So now I’m wondering if BC will actually provide ciphers it knows about if the underlying JRE doesn’t support them. On the other hand, if it is possible, I would appreciate some advice.

Regards,
Mike
Michael​



DiBaggio


Cleo

  |

Sr Software Engineer II









Email:

[email protected]<mailto:[email protected]>


  |

Web:

www.cleo.com<https://www.cleo.com/>













Join us for Cleo Connect 2019, October 7-10 in Orlando!  Register today!<https://www.cleo.com/cleo-connect>




















SEEBURGER AG            Vorstand/SEEBURGER Executive Board:
Sitz der Gesellschaft/Registered Office:                Axel Haas, Michael Kleeberg, Axel Otto, Dr. Martin Kuntz, Matthias Feßenbecker
Edisonstr. 1
D-75015 Bretten         Vorsitzende des Aufsichtsrats/Chairperson of the SEEBURGER Supervisory Board:
Tel.: 07252 / 96 - 0            Prof. Dr. Simone Zeuchner
Fax: 07252 / 96 - 2222
Internet: http://www.seeburger.de               Registergericht/Commercial Register:
e-mail: [email protected]               HRB 240708 Mannheim


Dieses E-Mail ist nur für den Empfänger bestimmt, an den es gerichtet ist und kann vertrauliches bzw. unter das Berufsgeheimnis fallendes Material enthalten. Jegliche darin enthaltene Ansicht oder Meinungsäußerung ist die des Autors und stellt nicht notwendigerweise die Ansicht oder Meinung der SEEBURGER AG dar. Sind Sie nicht der Empfänger, so haben Sie diese E-Mail irrtümlich erhalten und jegliche Verwendung, Veröffentlichung, Weiterleitung, Abschrift oder jeglicher Druck dieser E-Mail ist strengstens untersagt. Weder die SEEBURGER AG noch der Absender (Eckenfels. Bernd) übernehmen die Haftung für Viren; es obliegt Ihrer Verantwortung, die E-Mail und deren Anhänge auf Viren zu prüfen.


This email is intended only for the recipient(s) to whom it is addressed. This email may contain confidential material that may be protected by professional secrecy. Any fact or opinion contained, or expression of the material herein, does not necessarily reflect that of SEEBURGER AG. If you are not the addressee or if you have received this email in error, any use, publication or distribution including forwarding, copying or printing is strictly prohibited. Neither SEEBURGER AG, nor the sender (Eckenfels. Bernd) accept liability for viruses; it is your responsibility to check this email and its attachments for viruses.