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optimized AES GCM
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From: |
Nikos Mavrogiannopoulos |
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Subject: |
optimized AES GCM |
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Date: |
Wed, 01 Jun 2011 17:04:44 +0200 |
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User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.17) Gecko/20110424 Thunderbird/3.1.10 |
Hello,
I've ported Andy Polyakov's GCM code for intel processors using
PCLMULQDQ instruction and benchmarked it. The difference is quite
impressive:
Nettle's AES and GCM:
Testing DH_ANON_AES_128_GCM_SHA256 with 15360 packet size: Processed
259.65 Mb in 5.00 secs: 51.92 Mb/sec
Testing ANON_DH_AES_128_CBC_SHA1 with 15360 packet size: Processed
274.53 Mb in 5.00 secs: 54.88 Mb/sec
Andy's assembly code (AES-NI + PCLMULQDQ):
Testing DH_ANON_AES_128_GCM_SHA256 with 15360 packet size: Processed
1.87 Gb in 5.00 secs: 0.37 Gb/sec
Testing ANON_DH_AES_128_CBC_SHA1 with 15360 packet size: Processed
671.59 Mb in 5.00 secs: 134.29 Mb/sec
The CPU was: Intel(R) Xeon(R) CPU X5670 @ 2.93GHz
regards,
Nikos
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