encryption cards?

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shutitalldown
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encryption cards?

Unread postby shutitalldown » Thu Apr 05, 2018 6:47 am

someone happens to have ever used one?

A few dudes at BSD said they are are a good help for routers to speed up the vpn's stuff, but ... linux seems lacking in support, and I have never seen one of those crypto-cards running.
I am tattooed in reverse, cause if you break rules you don't know where it leads.
But, say, all the venus in furs are so manically depressed and manically dressed.

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jan-jaap
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Re: encryption cards?

Unread postby jan-jaap » Thu Apr 05, 2018 8:31 am

shutitalldown wrote:help for routers to speed up the vpn's stuff

Modern Intel and AMD CPUs have AES-NI instructions for that. Linux and BSD (pfSense) support that.

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shutitalldown
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Re: encryption cards?

Unread postby shutitalldown » Thu Apr 05, 2018 8:46 am

jan-jaap wrote:AES-NI instructions


ok, but neither Atheros chips nor Calvium chips used in routers do have special instructions implemented to speed up the vpn's stuff.
I am tattooed in reverse, cause if you break rules you don't know where it leads.
But, say, all the venus in furs are so manically depressed and manically dressed.

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Re: encryption cards?

Unread postby smj » Fri Apr 06, 2018 2:34 am

Shoot, I was hoping to learn that my old Rainbow CryptoSwift and HP AXL300 cards were somehow wildly valuable...

"LQQK! R@R3 CRYPTO PROCESSOR!! MINE BITCOIN/ETHEREUM!!!!1!
Once only affordable for large corporations and high-tech startups, these cards..."
Then? :IRIS3130: ... Now? :O3x02L: :A3504L:- :A3502L: :1600SW:+MLA :Fuel: :Octane2: :Octane: :Indigo2IMP: :Indy: ... Other: DEC :BA213: :BA123: Sun, DG AViiON, NeXT :Cube:

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miod
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Re: encryption cards?

Unread postby miod » Sun Apr 08, 2018 9:12 am

shutitalldown wrote:
jan-jaap wrote:AES-NI instructions


ok, but neither Atheros chips nor Calvium chips used in routers do have special instructions implemented to speed up the vpn's stuff.

Cavium chip do. Coprocessor #2 is a crypto accelerator.
:Indigo:R3000 (alas, dead) :Indigo:R4000 x4 :Indigo2:R4400 :Indigo2IMP:R4400 x2 :Indigo2:R8000 :Indigo2IMP:R10000 :Indy:R4000PC :Indy:R4000SC :Indy:R4400SC :Indy:R4600 :Indy:R5000SC :O2:R5000 x3 :O2:RM7000 :Octane:2xR10000 :Octane:R12000 :O200:2xR12000 :O200: - :O200:2x2xR10000 :Fuel:R16000 :O3x0:4xR16000 :A350:
among more than 150 machines : Apollo, Data General, Digital, HP, IBM, MIPS before SGI, Motorola, NeXT, SGI, Solbourne, Sun...

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Re: encryption cards?

Unread postby miod » Sun Apr 08, 2018 9:14 am

shutitalldown wrote:someone happens to have ever used one?

A few dudes at BSD said they are are a good help for routers to speed up the vpn's stuff, but ... linux seems lacking in support, and I have never seen one of those crypto-cards running.

I have used several such PCI cards in the early 2000s. The main drawback is that they are only worth using for large data, otherwise you lose in PCI communication time what you gain in CPU time. This makes them only usable for specific network traffic. Which is the reason why all modern processors have crypto instructions built-in, so that you do not need to copy data over the PCI bus.
:Indigo:R3000 (alas, dead) :Indigo:R4000 x4 :Indigo2:R4400 :Indigo2IMP:R4400 x2 :Indigo2:R8000 :Indigo2IMP:R10000 :Indy:R4000PC :Indy:R4000SC :Indy:R4400SC :Indy:R4600 :Indy:R5000SC :O2:R5000 x3 :O2:RM7000 :Octane:2xR10000 :Octane:R12000 :O200:2xR12000 :O200: - :O200:2x2xR10000 :Fuel:R16000 :O3x0:4xR16000 :A350:
among more than 150 machines : Apollo, Data General, Digital, HP, IBM, MIPS before SGI, Motorola, NeXT, SGI, Solbourne, Sun...

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shutitalldown
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Re: encryption cards?

Unread postby shutitalldown » Sun Apr 08, 2018 9:28 am

miod wrote:This makes them only usable for specific network traffic. Which is the reason why all modern processors have crypto instructions built-in, so that you do not need to copy data over the PCI bus


VPN should one of this case.
But what did you use? Which card? and with which linux support?

On Erlite-3, for example, I can't see any speedup with linux.
I am tattooed in reverse, cause if you break rules you don't know where it leads.
But, say, all the venus in furs are so manically depressed and manically dressed.

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miod
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Re: encryption cards?

Unread postby miod » Sun Apr 08, 2018 11:00 pm

shutitalldown wrote:VPN should one of this case.

It really depends on what you are doing. Large file transfers will benefit from this; interactive sessions won't.
:Indigo:R3000 (alas, dead) :Indigo:R4000 x4 :Indigo2:R4400 :Indigo2IMP:R4400 x2 :Indigo2:R8000 :Indigo2IMP:R10000 :Indy:R4000PC :Indy:R4000SC :Indy:R4400SC :Indy:R4600 :Indy:R5000SC :O2:R5000 x3 :O2:RM7000 :Octane:2xR10000 :Octane:R12000 :O200:2xR12000 :O200: - :O200:2x2xR10000 :Fuel:R16000 :O3x0:4xR16000 :A350:
among more than 150 machines : Apollo, Data General, Digital, HP, IBM, MIPS before SGI, Motorola, NeXT, SGI, Solbourne, Sun...


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