I've just been reading about recommended and deprecated encryption and tripped 
over a nist document 
(http://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-131Ar1.pdf) 
that distinguishes between 2key and 3key 3DES saying that the former is 
deprecated after 2015 but the latter is still acceptable.

Is this distinguishable in openssl?  I.e. if we negotiate 
TLS_RSA_WITH_3DES_EDE_CBC_SHA does it always use the 3-key version?

(I'm experimenting running NeXpose against an embedded device to look for 
security holes and it complained about DES (we only use 3DES) and CBC - odd!)

Thanks ... N


Nou Dadoun
Senior Firmware Developer, Security Specialist


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