On 27/05/2014, at 6:09 am, Christopher Schultz <ch...@christopherschultz.net> 
wrote:

<snip>

> 
> If you run the code I referenced elsewhere in this thread, you'll see
> that some of the components are available, just not in the
> combinations you have above:
> 
> $ java -showversion -classpath build/ SSLInfo | grep '\(256\|384\)'
> java version "1.7.0_55"
> Java(TM) SE Runtime Environment (build 1.7.0_55-b13)
> Java HotSpot(TM) 64-Bit Server VM (build 24.55-b03, mixed mode)
> 
> Supported SSL Protocols:
>  TLSv1 (SunJSSE)
>  TLSv1.1 (SunJSSE)
>  TLSv1.2 (SunJSSE)
> Default       Cipher Name
> *     TLS_DHE_DSS_WITH_AES_128_CBC_SHA256
> *     TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
>       TLS_DH_anon_WITH_AES_128_CBC_SHA256
> *     TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
> *     TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
> *     TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256
> *     TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256
> *     TLS_RSA_WITH_AES_128_CBC_SHA256
>       TLS_RSA_WITH_NULL_SHA256
> 
> So, you can get ECDHE_(ECDSA|RSA)_AES, but not with a 256-bit cipher.
> You can get a 128-bit cipher and a 256-bit hash, but not higher-bit
> hash functions.
> 
>> Oracle Java 7 has no GCM support (AIX does I think, but from
>> memory the cipher suite names are different), and some of the
>> cipher-suites don’t exist (see below). GCM was originally targeted
>> for JDK 7 (which is why the cipher suite names and AEAD APIs in the
>> JCE are there) but the implementation didn’t show up until JDK 8.
> 
> I find no ciphers with 384-bit hashes in Oracle Java 8, but there are
> 256-bit ones -- at least in the Mac OS X build:

Do you have the unrestricted crypto policy files installed?
Without those, > 128 bit security ciphers (== 256 bit hashes) are suppressed.
Cipher suites with SHA384 are definitely available on both JDK 7 and JDK 8 on 
OS X.

I’m using the interactive mode of https://github.com/timw/groktls to dump these.

tim


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