Australian Problems, Bangalore and Pune, AES-NI

Australian Problems
seem to have had a few since I tried to get on the bus in 95

The history of implementing public transport smart cards in Australia has seen mixed results. The first attempt to implement a smart card for public transport in NSW failed in 2008 and has since led to long-running legal troubles for the State Government. In Victoria, the Myki smart card system is up and running on trains, buses and trams in Melbourne, but has also had its fair share of troubles. Queensland has experienced less troubles with its go card system. Perth has also managed to implement a smart card system.

South Australia and the Australian Capital Territory are in the midst of roll-outs.

Clark said Visa was currently conducting a trial in New York's transit system with a payWave app on the iPhone

zdnet
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Bangalore and Pune are vying to be the first city in India to deploy a contactless smart card fare system on city buses .. idsuperstore.ca.

Bangalore’s .. nearing completion, ..1,000 buses. Pune, .. a definitive November 14 launch date..
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AES on Intel
The Intel® AES New Instructions (AES-NI) Sample Library .. Advanced Encryption Standard (AES) block cipher using the new AES-NI instructions available in Intel Core™ i5, i7, Xeon® 5600 series and newer processors.
intel

.. all new 2010 Intel® Core..Westmere.
..
28.0 cycles per byte to 3.5 cycles per byte
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AES-NI in truecrypt, but note the arguments:
truecrypt apparently doesnt have a "true" free licence - tghe disatinction seems moot to me

truecrypt really doesn't do anything useful that you can't do better with proper open source choices, like dmcrypt/luks.

but:

a lot easier to use, has a simple gui for easy creation of encrypted containers, partitions and drives, supports multiple cores!! and AES-NI, no need to create multiple dmcrypt-devices and a raid above them, to use multiple cores (on slower systems with fast disks/ssds without hadrware acceleration (VIA Eden, AES-NI, ... ) especially on older dual/quadcore-systems where cpu can be a real bottleneck for system-performance if you have your system encrypted, and want copy data on other fast encrypted discs (internal sata/sas or external e-sata/usb3).

From the performance-point of view:

..

Now I get ~570mb/s on a single core (i7 620M [dualcore]) with dmcrypt [aes-ni-support] and with truecrypt ~1600-1700mb/s on both cores.

Without AES-NI truecrypt (6.0) got about 250mb/s while dmcrypt on one core got about 100mb/s [older kernel/dmcrypt, think 110-120mb/s would be possible on an up2date kernel/dmcrypt]

..

I will keep my dmcrypt for the operating system (since truecrypt for linux-system encryption isn't supported) and use truecrypt for external drives.

Another thing, truecrypt runs on windows, linux, mac, solaris, ... , especially for external harddrives you want to use on more than operating system, sticking with dmcrypt just doesnt work.

phoronix
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