* Posts by Charles 9

11133 posts • joined 10 Jun 2009

Asterisk RTP bug worse than first thought: Think intercepted streams

Charles 9
Silver badge

Re: Ha ha ha

(Incoming ballistic trajectory)

They'd have a point. The attack is OUTSIDE the LAN, on the greater Internet. It's not like they're using RTP to get INTO the LAN, which is why they're against having any kind of knowable structure available, not realizing the ISP can always route past the router onto your LAN in any event, as your connection rides on theirs.

1
0
Charles 9
Silver badge

Re: I have only offered voip over VPN, but my colleges overseas

But it isn't going to help much if web facing services are the ONLY way through and major money is on the line.

0
0

That virtually impossible classic compsci P vs NP problem is virtually impossible, say boffins

Charles 9
Silver badge

Re: They have failed...

The problem isn't starting from scratch, as there are relatively simple ways to do it and ensure you get a result.

The NP-complete problem is to start with a partial board and determine whether or not it's possible to complete that board. It's the existing pieces that complicate the matter since now you have the possibility of no solution and the problem specifically asks yes/no to that. This makes it impossible to use a programmatic approach since the initial layout is random. This puts it in the realm of Traveling Salesman in that the only solution is brute force, which reaches infeasible levels quickly due to its factorial complexity.

0
0
Charles 9
Silver badge

IOW, it can't be solved deterministically, which is one way to class an NP problem (NP stands for Nondeterministic Polynomial).

1
0
Charles 9
Silver badge

I've also heard that any NP-complete problem can be refactored to represent any OTHER NP-complete problem (like, say, Traveling Salesman), which is one reason why you only need to solve ONE to solve ALL.

0
0

Crypto-busters reverse nearly 320 MEELLION hashed passwords

Charles 9
Silver badge

Re: That's lovely, but

Oh, what's to stop someone else stealing your identity after you die? Remember ghost votes?

1
0

Bitcoin Foundation wants US Department of Justice investigated

Charles 9
Silver badge

Re: Because the law doesn't yet recognise it as a legal form of tender?

"If the mafia decide to only trade in "mafia bucks", does it make their trade exempt from tax?"

Where would their mafia bucks come from, then? And how do they turn around and use it to acquire real-world goods? At SOME point, you're going to have to go back to government-backed currency to interact with the real world, and THAT'S when they get you.

That's why countries like the US aren't all that concerned about Bitcoin. Since Bitcoin is not the official US currency, at some point if you want to do things like shop at Walmart (which can ONLY really work with dollars), you're going to have to convert back to dollars, which under US laws is a taxable event.

0
0
Charles 9
Silver badge

Re: Because the law doesn't yet recognise it as a legal form of tender?

As legal tender, no, only the Dollar and Cent, especially when it comes to debts (which is the main reason for the Legal Tender Act--to ensure a means of settling debts). Now, if a private enterprise wishes to accept other forms of currency as part of its business (say a currency exchange), then that's up to it, though there may be international agreements in place concerning how they go about their business. And since they're still handling dollars, the US government's going to want to check them out now and then as well.

1
0
Charles 9
Silver badge

Re: Dear DOJ:

"Well, in the US I can tell you that it *isn't* the government."

Then what's the Federal Reserve Act of 1913, then? Chopped liver?

3
0
Charles 9
Silver badge

Re: Dear DOJ:

"By that logic all people have to do is convert from USD to GBP first before converting to Bitcoins"

That STILL involves a currency exchange involving Dollars. Only now the British government can get involved, too (because you're now using Pounds Sterling, too).

1
0
Charles 9
Silver badge

Re: Dear DOJ:

"Um, aren't they actually only backed by the private central bank that issued them?"

Um, and under whose authorities do these central banks operate?

2
0
Charles 9
Silver badge

Re: Dear DOJ:

"Because the law doesn't yet recognise it as a legal form of tender?"

Does the US have to recognize the UK Pound to be able to trade with it? Not really. That's usually up to the banks and currency exchanges, who make the necessary arrangements. The government gets involved when its own currency gets handles, and that's usually sufficient, given transacting in the home country usually requires home currency.

Similarly, the US government takes the stance that as long as US dollars are used to exchange for Bitcoin, it has a say in the matter. That's why places like Coinbase register with the government to maintain legitimacy. Whether you consider Bitcoin as a currency, a commodity, or something else, as long as US dollars are involved, the US government, by default, is involved.

6
0
Charles 9
Silver badge

Re: Dear DOJ:

It also neglects to note that most currency as we know it is virtual anyway. First, they're fiat currencies, backed only by government word. Second, most transactions are electronic in narure, not requiring the physical transfer of bills/notes or coinage.

So, apart from a lack of sovereign backing, how is an e-currency any different?

18
0

Chinese smartphone cable-maker chucks sueball at Apple

Charles 9
Silver badge

Re: A chip hidden in a charging cable?

Cables are MADE to fail. They're designed to fail first to save the more expensive stuff. Sounds to me like exactly what we need here. Not complicated lock-in cables but dead simple sacrificial lambs.

2
0
Charles 9
Silver badge

Re: A chip hidden in a charging cable?

Just require that all chargers contain an easily-accessible-and-changeable fuse. They do that with Christmas light sets.

1
1
Charles 9
Silver badge

Re: A chip hidden in a charging cable?

A USB cable is more than a charging cable as well. In fact, it's a data cable FIRST, a charging cable SECOND. And it doesn't need sophisticated stuff in the cable to do its thing. In fact, its philosophy has been that the complicated bits should be at the socket ends; make the cable simple and easy to replace and let the ends do the hard work (that's one reason the latches in the Micro USB spec are on the cable where they were in the socket in Mini USB--lot easier to switch out a cable than to reinstall a socket). In response to your overcharging issue, the sockets in the devices should carry the ability to sense out-of-bound electricals and shut the socket off as needed to protect itself. Is it really that hard to do that without resorting to the complexity of a chip in the cable?

8
1
Charles 9
Silver badge

Re: I can see the value in certification

If that were true, the cables would only be a bit more than Micro USB cables, not several TIMES more at the least.

9
2
Charles 9
Silver badge

Once upon a time, only a Motorola-certified USB charger would be allowed to charge the MOTO RAZR V7. Other cables, the phone would stop charging after a few seconds. Made it tough when you bought it secondhand and it didn't come with the original charger.

0
0
Charles 9
Silver badge

Re: Beijing Intellectual Property Court

But the Chinese can undercut practically everyone. And cheap sells. And the Chinese know it.

6
0
Charles 9
Silver badge

Do you say the same thing about third-party printer supplies?

9
1

Ice-cold Kaspersky shows the industry how to handle patent trolls

Charles 9
Silver badge

Re: Blame Ronald Reagan.

Well, at least one can see the mindset. It's like I said; they didn't want inventors priced out of patents and hassled with red tape, but everything has a catch. Easier patents mean more junk patents, but OTOH tougher patent standards discourage garage inventors. You really can't have it both ways. Do you want to give garage inventors a chance ("The American Dream!") or do you want to keep frivolity out of the patent office? Pick your poison.

0
0
Charles 9
Silver badge

Re: Blame Ronald Reagan.

Well, you can't have everything. For the USPTO to work properly, they need funding, and Congress is against using the general revenues, so the only way it could work is to raise patent fees. A LOT. Which means the little guy who just wants to protect his neat invention is priced out of the market.

1
0
Charles 9
Silver badge

Re: In two minds...

"If the troll gets major backing then the defendant will get that too - after all they stand a very high chance of getting their money back* after the patent is invalidated."

Not necessarily, if it becomes a case of two gorillas in the courtroom. Consider the MPEG-LA v. Google dispute over video codecs. They eventually settled the case because neither side wanted it to go nuclear (Google could lose claim to VP8 being unencumbered, MPEG-LA could lose vital patents related to MPEG-4 codecs).

8
0
Charles 9
Silver badge

Re: In two minds...

This trick only works because the troll had no backing. If the troll was being backed by another major firm, then the firm may not just be out for money (could be seeking an injunction to interfere with the defendant's business) so would be willing to gamble on the courts and/or appeals process.

7
0

Deputy AG Rosenstein calls for law to require encryption backdoors

Charles 9
Silver badge

Re: Here we go again

Nearly 400 million people and a lot of money. Not even China ignores them.

1
0
Charles 9
Silver badge

Re: Here we go again

Sure you can. Just require the use of it if you want lucrative government (some run in the BEEELIONS) contracts, many of which can be make-or-break-ers for companies. Think about it. ALL states set their alcohol minimum ages to 21 (IN SPITE of the age being determined by the states in the years following the 21st Amendment) because setting any lower means no federal highway funds for you (BY LAW). Same tactic.

2
0
Charles 9
Silver badge

Re: Simple ansswer: prove the concept.

And if they STILL go along with it? Some can be gluttons for punishment, for example.

0
0
Charles 9
Silver badge

Re: How to keep a secret? Tell NOBODY!

Don't you mean more than ZERO people?

2
0
Charles 9
Silver badge

Re: Habeas corpus?

Don't be so sure. The SCOTUS waxes conservative now.

0
0

Couple fires sueball at Amazon over faulty solar eclipse-viewing goggles

Charles 9
Silver badge

Re: If I said I sold "jumping off a cliff trousers"

Sure. Ever heard of cliff diving? BASE jumping?

1
0
Charles 9
Silver badge

Re: Sungazing should never be taken lightly!!

I'm still waiting for the story of someone buying fake stuff from someone's trunk only to learn the buyer had paid with counterfeit money.

4
0

Intel ME controller chip has secret kill switch

Charles 9
Silver badge

Re: Irony ?

"Well, I agree, totally open hardware well performing graphics is a problem ... yet, without graphics, how do you use a browser ? I know, lynx, curl ... tedious ... that was part of my point ... we need totally open graphics, hence my call ... we can do it!"

As one commenter noted, no we can't. It's been tried already. People just aren't that interested in security when it interferes with productivity. Why do you think "hoop jumping" has such a negative connotivity? Get in the way of people's jobs and people will find a way around you. It's practically part of the human condition.

0
0
Charles 9
Silver badge

Re: Irony ?

Quite a few people, actually, given gaming is one of the few things that keeps the likes of nVidia and AMD busy. You're just in the minority, which us part of the problem. As noted, the unwashed masses will willingly give up security for performance and value. We frankly need a better human being first.

0
0
Charles 9
Silver badge

Re: Irony ?

Last I checked, though, those systems can't run Crysis or any of its sequels. So what now?

0
0
Charles 9
Silver badge

Re: Fool me once tovarisch

The cage prevented wireless transmissions, allowing the checkpoint to search for cameras and so on.

2
0
Charles 9
Silver badge

Re: Irony ?

OK, so what graphics manufacturer do you trust. ALL of them IINM release their state of the art as blobs because they're all in competition with each other and don't want to Give Information To The Enemy. Any manufacturer you could find that is willing to divulge probably isn't sought out for its performance, meaning your graphics are going to be seriously underpowered.

2
0
Charles 9
Silver badge

Re: The mind absolutely boggles.

The thing is, no one ever FINISHES the quote. There's a second part.

Insanity is doing the same thing over and over and expecting a different result.

Persistence is doing the same thing over and over and actually getting a different result.

So, you see, it's only insane until something different happens. Then it becomes persistence...and praiseworthy.

26
0

El Reg gets schooled on why SSDs will NOT kill off the trusty hard drive

Charles 9
Silver badge

Re: Tepid storage for home users

And what's the assurance THEY'LL still be around in a decade or two? Sites come and go, after all.

0
0
Charles 9
Silver badge

Re: I've been told that SSD isn't good for cold data storage @Matthew

"With the accelerating move to web-based SaaS applications and things like tablets and Google Chromebooks, combined with ubiquitous high-speed network access (even when away from home/office, i.e. HSPA, LTE,) local storage for the bulk of consumers and even business end-user devices is becoming rapidly less relevant."

ORLY? Have you seen the data allowances these stingy providers foist upon you? Cloud seems fine and dandy until you learn you can only partake a teaspoon at a time without incurring massive overage fees. Plus what if you CAN'T access the Internet due to being in a not-spot or whatever? No, the only source you can really trust is one YOU control end to end.

3
0
Charles 9
Silver badge

Re: Flash replacing Tape too

Point taken on the rust, but the rust in tape is in the cartridge, not the drive assembly, so my point still stands. Besides, we're talking linear rust instead of spinning rust along a more precise and controllable mechanism.

0
0

Batteries that don't burn at the drop of a Galaxy Note 7? We're listening

Charles 9
Silver badge

Re: Re. Assault on batteries

OK, but what about EXTENDED high-draw use, such as lengthy GPS sessions, 3D gaming, or extensive video playback?

0
0

Hash of the Titan: How Google bakes security all the way into silicon

Charles 9
Silver badge

Re: It's useless without revocation

But then one must ALSO assume that if a certificate can be replaced, it can be replaced with a BAD one. Certificate revocation is a potential DoS exploit, and certificate replacement is a MitM exploit.

0
0

'Driverless' lorry platoons will soon be on a motorway near you

Charles 9
Silver badge

Re: Convoy

I thought about when I rolled over the word Scammell in my head and then looked it up and realized it's a British truck maker. Figures, must be a British version of the song. The one I quoted was the original by C. W. McCall (also covered by Kris Kristofferson, I think). Inspired a movie with its own lyrics.

0
0
Charles 9
Silver badge

Re: Has nobody realised

But rail can't go the last mile. At least with truck convoys you don't have to deal with time-consuming mode changes.

0
0
Charles 9
Silver badge

Re: Who gets the fuel savings?

"If they all do belong to the same company, implying that a company sends multiple 44t HGVs along the same route at the same time, shouldn't they be investigating rail freight?"

To anyone proposing a rail route, remember one reason lorries are preferred over trains. Unlike trains, lorries can go the last mile. That's the thing about trucking convoys. Once each truck reaches its destination, it can break off to go that last mile.

0
0
Charles 9
Silver badge

Re: Convoy

Hmm? That's not how I recall it:

Was the dark of the moon

on the 6th of June,

In a Kenworth pullin' logs...

2
0

Brazilians waxed: Uni's Tor relay node booted after harvesting .onions

Charles 9
Silver badge

Re: Self-important little pricks

Not from most people's experience. Kind words tend to be met with fingers, and once ONE starts cheating and spoiling all the fun...

Perhaps TOR should instead recode their system such that relays and exit nodes CAN'T determine destinations. If there's no way to do that, they should just say so, declare there's no real way to be anonymous on the Internet, and drop the project.

2
2

Forget trigonometry, 'cos Babylonians did it better 3,700 years ago – by counting in base 60!

Charles 9
Silver badge

Re: Trigonometry is not about triangles...

If trigonometry really were about circles, then why the "tri"?

I will agree with you, though, that there's a surprisingly strong connection between circles and triangles. Thus if you were to plot a graph of the Pythagoream Theorem (x^2 + y^2 = z^2), you get a perfect circle of radius z.

PS. Interestingly, if you generalize the equation to x^n + y^n = z^n and plot their graphs for greater values of n, you find the graph morphs from a circle to a square as n approaches infinity.

4
0
Charles 9
Silver badge

Re: We use base 10 for a reason

"Errm, we real oldies remember 12 pennies in a shilling and 20 shillings to the pound. Moreover, you could subdivide a pound into 960 farthings."

And isn't it funny that everyone wrote out half-crowns as 2s 6d (2 and 6) rather than as, well, half a crown.

3
1
Charles 9
Silver badge

Re: So much for digital

It's entirely possible to handle 0-9 with just one hand. Use the same system with the other hand and you can do 0-99 easily.

5
1

Forums

Biting the hand that feeds IT © 1998–2017