Re: Available cipher suites

Yves Langisch <[email protected]> Thu, 16 Jan 2014 20:12:20 +0100
Newsgroups	gmane.comp.java.ikvm.devel
Message-ID	<[email protected]>
Thanks, it looks like ECC is natively implemented in the JRE. Solved it by converting the Bouncy Castle provider [1] which provides ECC support. You just need to register the provider (Security.addProvider(new BouncyCastleProvider()).
-
Yves

[1] http://www.bouncycastle.org/ 

On 16 Jan 2014, at 16:56 , Jeroen Frijters <[email protected]> wrote:

> Hi,
> 
> It's documented in the IKVM release notes that ECC is not implemented.
> 
> I'm not very knowledgeable on Java crypto, so I don't know if there are alternative implementations that can be plugged in.
> 
> Regards,
> Jeroen
> 
>> -----Original Message-----
>> From: Yves Langisch [mailto:[email protected]]
>> Sent: Thursday, January 16, 2014 15:10
>> To: [email protected]
>> Subject: [Ikvm-developers] Available cipher suites
>> 
>> Hi,
>> 
>> Using the latest IKVM version it looks like there are no Elliptic Curve
>> cipher suites (TLS_EC*) available for SSL/TLS connections.
>> 
>> with -Djavax.net.debug=ssl:
>> ...
>> Ignoring unavailable cipher suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
>> Ignoring unavailable cipher suite: TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA
>> Ignoring unavailable cipher suite: TLS_ECDH_RSA_WITH_AES_256_CBC_SHA
>> Ignoring unsupported cipher suite: TLS_DHE_DSS_WITH_AES_128_CBC_SHA256
>> Ignoring unavailable cipher suite: TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA
>> Ignoring unsupported cipher suite: TLS_DHE_DSS_WITH_AES_256_CBC_SHA256
>> Ignoring unsupported cipher suite: TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
>> Ignoring unsupported cipher suite: TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256
>> Ignoring unavailable cipher suite: TLS_ECDHE_RSA_WITH_RC4_128_SHA
>> Ignoring unavailable cipher suite: TLS_ECDH_ECDSA_WITH_RC4_128_SHA
>> Ignoring unsupported cipher suite: TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
>> Ignoring unavailable cipher suite: TLS_ECDHE_ECDSA_WITH_RC4_128_SHA
>> Ignoring unsupported cipher suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
>> Ignoring unavailable cipher suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
>> Ignoring unavailable cipher suite: TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA
>> Ignoring unavailable cipher suite: TLS_ECDH_RSA_WITH_RC4_128_SHA
>> Ignoring unsupported cipher suite:
>> TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384
>> Ignoring unavailable cipher suite: TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA
>> Ignoring unavailable cipher suite: TLS_ECDH_RSA_WITH_AES_128_CBC_SHA
>> Ignoring unsupported cipher suite: TLS_RSA_WITH_AES_256_CBC_SHA256
>> Ignoring unavailable cipher suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
>> Ignoring unavailable cipher suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
>> Ignoring unsupported cipher suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
>> Ignoring unsupported cipher suite:
>> TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
>> Ignoring unsupported cipher suite: TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384
>> Ignoring unsupported cipher suite:
>> TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
>> Ignoring unsupported cipher suite:
>> TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256
>> Ignoring unavailable cipher suite: TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA
>> Ignoring unsupported cipher suite: TLS_RSA_WITH_AES_128_CBC_SHA256
>> Ignoring unavailable cipher suite: TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
>> ...
>> 
>> With IKVM I'm unable to connect to a server which exclusively supports
>> EC ciphers. Using a standard JRE7 I can successfully connect.
>> 
>> Is there a was to enable the EC ciphers?
>> 
>> -
>> Yves
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