Re: [Ipsec] OT: cryptographic parameters - performance data

[Wes Hardaker <hardaker@tislabs.com>]

>>>>> On Fri, 11 Jun 2004 09:25:45 +0000, "Bob Arthurs" <bob_arthurs@hotmail.com> said:

Bob> i am wondering whether anybody know if there is any freely available
Bob> (on the web/in a book) on the relative performance of sha-1/md5 and
Bob> des/3des/aes/seal ??

I did some tests once using the NIST IPsec stack running on two
machines and using netperf gathered data about the rate the two of the
machines could talk to each other.  In the following results,
no-encryption and no-authentication (IE, no tunnel at all) is a 100
and thus the rest of the numbers are the speed percentage of this base
line that it dropped to.

                  None            HMAC-MD5-96     HMAC-SHA-96   

None              100             76              65            
DES/CBC           51              47              43            
3DES/CBC          34              32              30            
AES/128           47              44              38            
IDEA/CBC          50              45              41            
RC5/CBC           62              53              49            
Blowfish/CBC      51              47              42            


-- 
Wes Hardaker
Sparta

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