On Tue, Nov 24, 2015 at 09:29:44PM +0100, Aaron Zauner wrote: > Hi, > > Please forgive my ignorance but what's the reason FreeBSD ships > OpenSSH patched with HPN by default? Besides my passion for > security, I've been working in the HPC sector for a while and > benchmarked the patch for a customer about 1.5 years ago. The > CTR-multi threading patch is actually *slower* than upstream OpenSSH > with AES in CTR mode. GCM being, of course, the fastest mode on > AESNI plattforms.
We never imported the AES bits as they were broken and AESNI was available. > The NULL mode is a security concern as some have noted, I can only > imagine that the window-scaling patch is of such importance? Both NULL and window-scaling were merged because both are useful in some environments. -- Brooks
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