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Comment: Keep hard drives outside of your circle of trust. (Score 1) 320

by craighansen (#49161447) Attached to: Ask Slashdot: How Does One Verify Hard Drive Firmware?

If you cannot audit the source code of the hard drive firmware, you must keep hard drives outside of your circle of trust. That means that all hard drive traffic should be encrypted with keys not available to the hard drive. Digital signatures and time stamps can also be employed to ensure that the drive isn't utilizing replay attacks or swapping blocks around. As a bonus, this protects against failures in the transmission path, in even stronger ways than ZFS uses checksums. And remember, once you're out, you're out. There's no coming back.

Comment: Re:Seiki (Score 2) 330

by craighansen (#49040085) Attached to: Ask Slashdot: Affordable Large HD/UHD/4K "Stupid" Screens?

I've got some Seiki 4k TVs, and I'd agree that their good for the money and have minimal features like the OP asked for. The 39" and 55" work out of the box perfectly with the HDMI port on an Apple MacBookPro.

There's one glaring problem I've had though, and that's with the built-in sound. The volume control responds to almost any input on a Charter cable box remote, usually by raising the volume. I have to keep punching it back down as I use the remote. Since the OP doesn't want sound, it might be OK for him, though the on-screen volume display would pop up, and if you didn't block the sound input on HDMI, it might start blaring if you didn't open it up and disconnect the speakers.
You could cover the IR input, except that I think it powers up in the OFF state, needing the remote to turn it on.

Comment: Re:Double Irish (Score 1) 825

It also means that foreign goverments can tax income at 19% at no further cost to the corporation, making it politically simple to raise taxes to that level.
That helps create a level playing field - if every government taxed income at 19%, there'd be no further incentive for US corporations to pretend their income is earned abroad. It also means that foreign companies can't offer "incentives" to move business overseas, as taxing income below 19% doesn't reduce the business's tax.

There's a huge side effect of the Foreign Tax Credit. Because foreign taxes are completely deductible, there's no incentive for payers of foreign taxes to try to minimize the tax paid. It effectively means that it's up to the IRS to police foreign tax deductions to make sure corporations (and personal taxpayers) are paying only as much foreign tax as they have to. Every dollar in foreign tax collected is a dollar less for the Federal Treasury.

Comment: Re:Deflate-gate? (Score 1) 239

by craighansen (#48953641) Attached to: NFL Asks Columbia University For Help With Deflate-Gate

If you're Republican-oriented, tired of having every scandal called back to Watergate, you can always use the alternate name: "BallGhazi"

How do you measure your balls?
            If they stick a pin into the football to measure the pressure, it'll let out a little air each time.
            If they measure at a lower temperature than when the ball was inflated, they'll get a lower pressure.

How do you blow up your balls?
          Compressing air raises the temperature, so putting recently-compressed air, such as running a pump output directly into the football, will inflate with hot air. The pressure will decrease as the gas cools.
            If you bubble the compressed air through a water tank before running it into the football, you can put water vapor into the football, and if the vapor condenses inside the ball as the gas cools, the pressure will further decrease because water vapor of much less dense than liquid water.
            If you inflate from an storage tank at hight pressure and ambient temperature, you can get the opposite effect, because expanding the gas inside the football will cool the gas, making the pressure increase as the gas warms back to ambient.
            If you inflate with hydrogen, you make them just a smidge lighter, but also use a gas that'll diffuse through the rubber and leather a little faster.

How do you treat your balls?
            If you rub your balls, as for roughing up the surface, the fricton will warm the balls, temporarily raising the pressure at the time of inflation and initial pressure checks.
            If you ream out the inflation hole, you can make it gape open a little, leaking air at a slow rate.
            If you keep your balls warm before each pressure check, you can more easily pass the test, then let them cool down for the play.

So, if you fill your balls all hot and sweaty, you can pass the tests and have a nice soft balls to play with later. If the NFL doesn't update their standards, soon all the teams will figure this out. To avoid this, they should be inflating their balls from a big tank at ambient temperature and relatively low pressure.

If the NFL specifies the gas mix, a minimum tank size and maximum tank pressure there won't be such ability to cheat.

Comment: No need for physical barriers (Score 1) 611

by craighansen (#48604141) Attached to: Waze Causing Anger Among LA Residents

Software could rate limit side-road detours, giving priority to (1) law-abiding drivers who follow speed limit regulations and come to a full-stop at stop signs or (2) drivers who pay a premium for the application or (3) click on high-value advertising. They could (4) abstain from sending drivers onto side-road detours during the specific times and areas that children are travelling to/from school (even (5) detecting this by use of commonly available cellphones for school-age children). Traffic that's at a complete standstill might be (6) targeted for high-value advertising, or even (7) offer a detour for a fee. Detours could be prioritized based on carbon or other pollution emissions - depending on whether one prefers (8) to incentivize low-carbon vehicles or (9) temporarily reduce emissions on those "spare the air days" by getting high-pollution vehicles to their destination more quickly.

If Google/Waze failed to create these modifications, they could be imposed by local or state legislation, and/or agreed to by a standards working group to encourage universal compliance. Legislators could even use "virtual HOT lanes" as funding sources, raising "sorely needed funding for high speed rail" or "community improvement projects."

Now who's being evil?

Top Ten Things Overheard At The ANSI C Draft Committee Meetings: (9) Dammit, little-endian systems *are* more consistent!