Re: overcoming ecash deployment problems (Re: all about transferable off-line ecash)

2002-06-06 Thread Marcel Popescu

From: "Adam Back" <[EMAIL PROTECTED]>

> Consider during periods of high inflation people don't like holding
> money, as it devalues too fast.  They will hold interest bearing
> deposits instead.

Agreed.

> During periods of high deflation, they will hold cash if it is the
> most attractive "investment".  The result will be shortage of cash,
> for people who actually want to use it to make purchases because
> investors will buy all of it.

Right. And a shortage of anything, cash making no exception, is solved
automatically (if the market is left alone). The value of a monetary unit
will rise until its price will be considered (by the cash holders) high
enough - that is, until they will value something else more than the cash.
Shortages are NEVER a problem if the market is left alone to clear it - they
simply indicate an undervaluation of the commodity.

> Perhaps there are some government monetary systems in history which
> had this problem.  For example gold with sudden shortage of gold
> supply, or similar.

Once you put the gov't into the equation, all bets are off :)

Mark





Re: overcoming ecash deployment problems (Re: all about transferable off-line ecash)

2002-06-06 Thread Adam Back

I think you are assuming things about rational economic behavior when
a money system is subject to high deflation.

Consider during periods of high inflation people don't like holding
money, as it devalues too fast.  They will hold interest bearing
deposits instead.

During periods of high deflation, they will hold cash if it is the
most attractive "investment".  The result will be shortage of cash,
for people who actually want to use it to make purchases because
investors will buy all of it.

Perhaps there are some government monetary systems in history which
had this problem.  For example gold with sudden shortage of gold
supply, or similar.

Adam

On Thu, Jun 06, 2002 at 05:31:28PM +0300, Marcel Popescu wrote:
> From: "Adam Back" <[EMAIL PROTECTED]>
> 
> > So this would be the argument for a closed supply of money in the
> > system, like the digicash betabucks where they stated up from that
> > they would only issue 1,000,000 betabucks.  People trade them based on
> > supply and demand.
> >
> > Perhaps.  Though at the time Wei Dai had some arguments at the time
> > that if they were popular, they would be a good investment and people
> > would have an incentive to hold on to them which would make them
> > difficult to obtain, highly inflationary, and hard to use.
> 
> I have missed that one; however, it is wrong - if people hold them, then
> they become MORE valuable, and thus you have high deflation - the purchasing
> power of money grows - which is great. And if their value gets so big that
> subdivisions start to become necessary, one can always convert them to "new
> betabucks", each old one being worth a million new ones. End of problem.
> 
> Mark



Re: overcoming ecash deployment problems (Re: all about transferable off-line ecash)

2002-06-06 Thread Marcel Popescu

From: "Adam Back" <[EMAIL PROTECTED]>

> So this would be the argument for a closed supply of money in the
> system, like the digicash betabucks where they stated up from that
> they would only issue 1,000,000 betabucks.  People trade them based on
> supply and demand.
>
> Perhaps.  Though at the time Wei Dai had some arguments at the time
> that if they were popular, they would be a good investment and people
> would have an incentive to hold on to them which would make them
> difficult to obtain, highly inflationary, and hard to use.

I have missed that one; however, it is wrong - if people hold them, then
they become MORE valuable, and thus you have high deflation - the purchasing
power of money grows - which is great. And if their value gets so big that
subdivisions start to become necessary, one can always convert them to "new
betabucks", each old one being worth a million new ones. End of problem.

Mark





Re: overcoming ecash deployment problems (Re: all about transferable off-line ecash)

2002-04-13 Thread Eugen Leitl

On Fri, 12 Apr 2002, Bill Stewart wrote:

> Most of the telco business runs on 48V DC, and much of the
> "off-the-grid" solar energy electric applications run fine on 12V DC.

Problem with high current and low voltage is that ohmic losses are
unacceptably high if you want to transport it more than a few 10 m, and
you need big wire crossections (which makes for expensive cables, since
usually copper), and if you've got a high resistivity somewhere it heats
enough to start a fire. That's the reason photovoltaics tends to use 24 V,
not 12 V.

> The big advantages of AC are for motors.

Many modern motors are smart, anyway, so they can generate their own AC
dynamically, internally. Notice that even with photovoltaics there are
smart controllers out there which can synthesize AC (whether 110/60 or
220/50)  in realtime from individual cell's contributions (there are other
kinds, which are still more widespread, but those have higher losses).




Re: overcoming ecash deployment problems (Re: all about transferable off-line ecash)

2002-04-12 Thread Bill Stewart

At 10:51 AM 04/11/2002 -0700, Tim May wrote:
>No, we have AC because AC works better than DC in home wiring situations.

Most of the telco business runs on 48V DC, and much of the
"off-the-grid" solar energy electric applications run fine on 12V DC.
The big advantages of AC are for motors.

>And the issue of patents on software is a _metering_ problem.

Software patents have major problems with interfering with
authors by forcing them to identify relevant patents.
Even if the patent office actually had examiners skilled in the field
who had real understanding of prior art and didn't approve
bogus patents right and left, it's still impractical for the average
software author to wade through 5 million patents before writing a product,
especially since patents are deliberately written in patentese,
to maximize the potential scope of their claims while minimizing the
amount of actual information revealed in the patent.
You can't spend years of work just trying to tell if your latest
variation on an XOR cursor has already been patented,
especially if you're an amateur rather than a business.

There are obviously patents that are well-known, well-publicized,
and relatively clear in what they're covering, like RSA and Diffie-Hellman,
and the "metering problem" of how to pay for licensing was
quite serious for some of them (even for patents whose owners
didn't threaten to run you over in the parking lot :-)
and no problem for others (Tim's examples with microprocessors.)

But it's the patents that you didn't know when writing your application
about that can really cause you trouble -
some things like RSA are novel and hard to discover,
so if you're using them, you heard about them from the patent-holders,
but some like "automatically encrypt a filesystem" are likely to be reinvented,
and if you put your product out in the field and *then* find that
somebody else has a patent on it (or was in the process of applying for
the patent when you were doing your development) then they've got you
by the kneecaps.   In theory you can contest a patent that was
awarded for something that would be obvious to a skilled practitioner,
in addition to contesting patents on things that were prior art,
but a serious product may have dozens of critical features any one of which
could kill you, and if any of them was for something that's obvious enough
that you discovered it independently, you're in trouble.

In the current system, of course, it's much worse, because the
incompetence of the patent office means that they can't tell something that's
obvious to a skilled practitioner from something that's obvious to
an unskilled practitioner or only obvious to a few experts,
and their willingness to accept "business method" patents
means that there are all sorts of bogus patents on things like
"make money by putting catalogs on line and accepting credit cards"
or "do common-practice-X using *the Internet*" as well as
bogus patents on actual technology.




Re: overcoming ecash deployment problems (Re: all about transferable off-line ecash)

2002-04-12 Thread Bill Stewart

At 12:43 AM 04/12/2002 +0100, Adam Back wrote:
>To be more concrete: there are already apparently e-gold backed credit
>cards.  So why not Everquest virtual platinum backed credit cards for
>spending your Everquest acquired wealth directly in the real world.  I
>would have thought Sony could have a lot of fun and gain some
>interesting press from going in this direction -- blurring the line
>between the VR and the real world -- rather than trying pretty much
>ineffectivley and hopelessly to stop people trading virtual platinum.

I rather like the use of credit cards in Nethack, myself :-)

You could do Everquest currency in e-cash.
The convenience of payee-anonymous e-cash in facilitating kidnapping
might fit in well...  on the other hand, loan sharking probably works
at least as well with "real" platinum instead of e-platinum...




Re: CDR: Re: overcoming ecash deployment problems (Re: all about transferable off-line ecash)

2002-04-11 Thread F. Marc de Piolenc



"A. Melon" wrote:
> 
> Tim May <[EMAIL PROTECTED]> wrote:
> > On Thursday, April 11, 2002, at 06:59  AM, Mike Rosing wrote:
> > > But the reason we have AC today is because Tesla requested no
> > > royalties on his motor/generator.  Something for Brands to think
> > > about.
> >
> > No, we have AC because AC works better than DC in home wiring
> > situations.
> 
> Hmmm.  I always thought the reason we went with AC was because at the
> time, DC power couldn't cut it.  They couldn't find any way to reliably
> transfer DC power more than a half mile or so from the power plant, and
> when trying to demonstrate it in NYC couldn't even get DC power all the
> way up a multi-story building.

You're saying the same thing. AC works for transmission over long
distances because it can be cheaply stepped up in voltage for
transmission to minimize losses, then stepped down again for safe
domestic use. We now have machinery that does that fairly cheaply for
DC, but it's still more expensive than a simple transformer with the
same capacity. Long range transmission line are now often high-voltage
DC, to take advantage of higher average power at a given peak voltage;
it is now possible to efficiently reconvert to AC at the end. In
Edison's day that was not so. If his commutated DC generators generated
32 volts (and high-voltage DC generators would have been very difficult
to build in those days), that was the transmission voltage, and you had
to have a powerplant on every block.

What held up AC as a distribution format was the absence of practical AC
motors - Tesla broke that logjam, asking little in return, and the rest
is history.

Marc de Piolenc




Re: overcoming ecash deployment problems (Re: all about transferable off-line ecash)

2002-04-11 Thread Adam Back

I just wrote:
> If they grew large enough their acceptance, or an ecash system backed
> in them, might spill over into the real world and allow purchase of
> services on the web, or even physical goods.

To be more concrete: there are already apparently e-gold backed credit
cards.  So why not Everquest virtual platinum backed credit cards for
spending your Everquest acquired wealth directly in the real world.  I
would have thought Sony could have a lot of fun and gain some
interesting press from going in this direction -- blurring the line
between the VR and the real world -- rather than trying pretty much
ineffectivley and hopelessly to stop people trading virtual platinum.

Adam



Re: overcoming ecash deployment problems (Re: all about transferable off-line ecash)

2002-04-11 Thread Adam Back

On Thu, Apr 11, 2002 at 10:29:39AM -0700, Tim May wrote:
> On Thursday, April 11, 2002, at 06:37  AM, Adam Back wrote:
> > - deployment / chicken and egg problem (merchants want lots of users
> > before they're interested users want wide merchant acceptance before
> > their interested)
> 
> As I have said, some people make efforts to open offshore bank accounts, 
> for income tax evasion, money laundering, purchase of illegal items, 
> etc. The crackdown on offshore-backed VISAs and Mastercards is in the 
> news. This provides some clue as to how much effort people will make to 
> avoid certain kinds of traceability...and the efforts against banks and 
> clearinghouses to stop these bypasses.

This is all evidence that there is lots of demand for anonymous
payment systems, the problems are in deployment and interfacing to the
existing payment systems for in and out exchange to make it
sufficiently convenient.  (An convenient exchange in and out could
bypass the lack of merchant acceptance -- your payment to a merchant
accepting only credit cards would be just a conversion to a one-use
credit card number funded for the purpose of the transaction with
anonymous ecash.)

> [...]
> Other illegal uses which could motivate use of digital cash are: online 
> gambling/numbers games, buying and selling of corporate insider 
> information, tax evasion (eventually), etc.
> 
> Redemption issues are not easy to arrange. Any bank which acts to issue 
> and redeem/convert such tokens, when the main market is for trading 
> child porn or other illegal warez, will likely be shut down by 
> international bodies.
> 
> A tough nut to crack. But at least we should be thinking about the 
> customer-driven uses, not trying to get convince Joe Sixpack that he 
> really should be using digital cash online, especially when just last 
> week he was happy to give his SS number for the online drawing for a 
> free CD.

Well online porn industry would surely be a killer app, natural desire
for privacy, higher than normal skepticism about giving credit cards
to merchants.  I'm not aware of any attempts to capitalize on this
market.  If I recall even there were claims that MTB tried to
discourage this kind of application by closing selected merchant
accounts.

Online gambling might be another plausible application.

> > Also the in-out exchange is less convenient.  Perhaps with paypal now
> > having wider acceptance people would trade this kind of digicash
> > beta-bucks like scheme for real money paying with paypal with bidding
> > on ebay as for the everquest internal currency.
> >
> > That might be an interesting experiment.  Or better yet for everquest
> > or other popular VR gaming thing to replace their currency by digicash
> > currency server, privacy for VR characters and their real-life
> > players.
> 
> Game use is an interesting one, as we've talked about over the years. 
> First, it may ostensibly seem "innocuous." Second, it both simulates and 
> educates. Third, there is the potential for a "redemption leakage," 
> e.g., where the artificial money of the artificial system is bought and 
> sold by players (seen in Everquest recently, seen a decade ago with an 
> Extropians reputation-rating system).

Well actually to elaborate what I meant is we now (as opposed to 5 or
more years ago) have a large scale new payment related component to
play with which has interesting properties for ecash.

I was suggesting that the ecash mint operator exchange ecash directly
for Everquest currency (virtual "platinum pieces").  The Everquest VR
is a place in cyberspace, and there are people who make their living
by trading and selling virtual artifacts acquired in the game.  The VR
world is of quite spectacular scale.  To give a few factoids about the
scale virtual worlds from some recent articles I read "Norrath's per
capita income is roughly between Russia and Bulgaria. Or put another
way, Norrath is the 77th richest country in the world."

"Revenues from online gaming were already $208m in 2000 and some
estimates see that figure rising to $1.7bn by 2004. Sony's monthly
revenue from EverQuest alone is estimated to be $3.6m. In the far
east, virtual worlds earn more than that. The most successful online
role-playing game in the world is South Korea's Lineage, which has 2.5
million subscribers and is played in one of every eight households."

(both from:

http://www.guardian.co.uk/internetnews/story/0,7369,670971,00.html

).

So there is already a fairly liquid market in virtual platinum pieces,
despite Sony's complaints and attempts to stop this.  Given the
expected growth and richness of VRs, it becomes more plausible that
online gambling and online porn itself could take place in these
virtual worlds with their ready made currency systems which have
already overcome the chicken-and-egg problems to some extent.

If they grew large enough their acceptance, or an ecash system backed
in them, might spill over into the real world and a

Re: overcoming ecash deployment problems (Re: all about transferable off-line ecash)

2002-04-11 Thread Pat Farrell

At 10:57 AM 4/11/2002 -0400, Adam Shostack wrote:
>Thus, ecash deployment is a 3 party problem, where most new
>technologies that succeed are not.  

Actually, it is worse than this.
Credit cards are a four party transaction. Mostly for historical reasons, but
still, the customer's card is presented to a merchant, who presents the slips
to a "acquiring bank" who then talks to the "issuing bank" to get money from the 
customer.
The banks maintain this system when it has long outlived its historical justification.

Similarly, checks are a four party transaction.

Real cash is a two party transaction, but nearly everything else has four or more.

So to begin with, you need to work it as a four party problem. You will have to bribe
one or more parties to make them agree to drop out of the party.

Pat


Pat Farrell [EMAIL PROTECTED]
http://www.pfarrell.com




Re: overcoming ecash deployment problems (Re: all about transferable off-line ecash)

2002-04-11 Thread georgemw

On 11 Apr 2002 at 12:48, A. Melon wrote:

> Tim May <[EMAIL PROTECTED]> wrote:
> > On Thursday, April 11, 2002, at 06:59  AM, Mike Rosing wrote:
> > > But the reason we have AC today is because Tesla requested no
> > > royalties on his motor/generator.  Something for Brands to think
> > > about.
> > 
> > No, we have AC because AC works better than DC in home wiring
> > situations.
> 
> Hmmm.  I always thought the reason we went with AC was because at the
> time, DC power couldn't cut it.  They couldn't find any way to reliably
> transfer DC power more than a half mile or so from the power plant, and
> when trying to demonstrate it in NYC couldn't even get DC power all the
> way up a multi-story building.
> 

It's like this: transformers work for AC and not for DC.
Losses in transmission only depend on current, so if you
can send high voltage low current through your transmission
lines and then transform down at the other end you get less 
transmission losses. 


> Tesla's AC power solved this problem, after which Edison and his backers
> started some kind of smear campaign saying that DC was safer and such.
> 

Yes, the high voltage transmission lines were deadlier to squirrels.

Lighting was the killer app for electricity, and it'll work fine off
DC or AC.  Motors will also (just make sure you have the right kind 
of motor), but if you just can have one thing coming
out of your walls you're much better off with AC, even if most
of your appliances work off DC, because it's easier to transform
and recify AC to get a specific DC voltage than it is to do a 
DC-DC trasnformation.  The only way you'd be better off with DC
coming out of your walls would be if not only did all your stuff work
off DC, but it all worked off the same DC voltage.

I think you'll find that every place in the world that has power
has AC coming out of its walls, even ones that just got
electricity recently.  It's not a historic accident, it's
better.

I hear that the primitives in Europe use 50 Hz AC.  Our 60 Hz
is clearly superior, because we need smaller transformers
and capacitors to get the same effect.  I had an idea for something
even better than 60 Hz AC once, but I've forgotten what it
was.

George  
 

> Mr Anonymous




Re: overcoming ecash deployment problems (Re: all about transferable off-line ecash)

2002-04-11 Thread A. Melon

Tim May <[EMAIL PROTECTED]> wrote:
> On Thursday, April 11, 2002, at 06:59  AM, Mike Rosing wrote:
> > But the reason we have AC today is because Tesla requested no
> > royalties on his motor/generator.  Something for Brands to think
> > about.
> 
> No, we have AC because AC works better than DC in home wiring
> situations.

Hmmm.  I always thought the reason we went with AC was because at the
time, DC power couldn't cut it.  They couldn't find any way to reliably
transfer DC power more than a half mile or so from the power plant, and
when trying to demonstrate it in NYC couldn't even get DC power all the
way up a multi-story building.

Tesla's AC power solved this problem, after which Edison and his backers
started some kind of smear campaign saying that DC was safer and such.

Mr Anonymous




Re: overcoming ecash deployment problems (Re: all about transferable off-line ecash)

2002-04-11 Thread Tim May

On Thursday, April 11, 2002, at 06:59  AM, Mike Rosing wrote:

> On Thu, 11 Apr 2002, Adam Back wrote:
>
>> Well I also am pretty anti-patent, especially the xor-cursor and
>> business process kind, but at least these ecash patents are not
>> frivolous patents (well Chaum's RSA blinding online scheme may look
>> pretty simple once you've seen it but Brands stuff is pretty
>> non-obvious).  Plus for the particular application of ecash it would
>> seem the biggest stumbling blocks are:
>
> Patent's aren't the problem - price of royalty is.  If Brands is willing
> to get .01 cents per bank per day, he'll be plenty rich and the 
> banks
> won't lose too much.  But the reason we have AC today is because Tesla
> requested no royalties on his motor/generator.  Something for Brands to
> think about.

No, we have AC because AC works better than DC in home wiring situations.

And the issue of patents on software is a _metering_ problem.

When the first microprocessors (and chips in general, but I'll focus on 
uPs) were sold, there was a lot of intellectual property embodied in the 
chips: patents, copyrights, etc. But the buyer of a chip, to be used for 
any purpose he cared to put it to, did not need to concern himself with 
negotiating anything with the vendor. The patents and other rights were 
"bundled" into the chip, reified, so to speak.

Anyone could buy 1 or 100 or a million chips and put them to any use. 
This meant a "garage company" could buy a couple of 8080s, build a 
product, and sell it...unencumbered.

Not so with RSA, for example. Before RSADSI would talk to a potential 
customer, they asked a lot of questions about uses, conflicts with other 
customers who had already bought the software, how the products would be 
identified and marked and metered. A "garage company" seeking to build 
RSA into a product would first have to hire a large negotiating team of 
lawyers and patent experts, and then would have to disclose full details 
of products. And RSADSI would probably not be interested in a "chump 
change" operation anyway.

Ditto for Digicash. Ditto for _most_ software products.

This is because the products themselves do not, and cannot, "meter 
themselves."

>> - deployment / chicken and egg problem (merchants want lots of users
>> before they're interested users want wide merchant acceptance before
>> their interested)
>
> If people believe (notice Tim?) that when they transfer bits from their
> electronic wallet to the dealer, and the bank believes when the dealer
> transfers bits into his account that the bits are "money" then everybody
> will want to use it.

Yes, I notice. Thanks. I really do believe (no pun intended) that 
replacing vague notions of "trust" with actor-centered notions of 
"belief" is important.

But this doesn't solve the metering issue.

(What _does_ solve will need another article.)

> The idea of "coins" isn't fluid enough, people want something more like
> a checkbook.  They can move any amount of money from their wallet to
> somebody else's wallet, and it needs to be just like cash - it can
> have a serial number, but it's not linked to any person.
>
> Merchants don't like credit cards because it costs them.  If they could
> use electronic cash - they'd take it in a heartbeat.

Digital cash is not free, either. (Or, rather, there is no particular 
ontological reason to expect it to have no fees attached.)

Also, the putative "cost" of processing VISA, MC, and other cards is 
dropping, and has been dropping for decades. Merchants can often 
negotiate favorable rates. And there is no basic reason why such systems 
cannot be _almost_ as efficient in pricing as other systems.

And even if the cost of processing is 1-3% for the merchant, he also 
gains something. Besides gaining customers who may not have either cash 
or checkbooks with them, especially true for _online_ stores!, his store 
has less physical cash. Those Loomis and Wells Fargo armored trucks 
hauling bags of cash around come with some costs. And "shrinkage" from 
the cash registers and hold-ups of stores is a major cost, both for 
direct losses and for insurance and hiring costs. Hauling bits is both 
physically safer and less costly.


--Tim May
"The great object is that every man be armed and everyone who is able 
may have a gun." --Patrick Henry
"The best we can hope for concerning the people at large is that they be 
properly armed." --Alexander Hamilton




Re: overcoming ecash deployment problems (Re: all about transferable off-line ecash)

2002-04-11 Thread Tim May

[Digital Bearer Settlement <[EMAIL PROTECTED]>  address removed.]

On Thursday, April 11, 2002, at 06:37  AM, Adam Back wrote:

> New thread about deployment barriers to explore the topic of whether
> there are now more internet services and technologies that would allow
> us to get closer to deployment of ecash.  (It would be about time
> you'd think).
> non-obvious).  Plus for the particular application of ecash it would
> seem the biggest stumbling blocks are:
>
> - deployment / chicken and egg problem (merchants want lots of users
> before they're interested users want wide merchant acceptance before
> their interested)

Motivation is the real issue. People will not adopt a complicated (to 
them, to many) new financial system unless it offers them more value 
than it costs them. Or unless they have no choice because others have 
made the change and they need to be compliant.

People will not clamor for digital cash (henceforth assumed to be 2-way 
untraceable, not one of the watered-down one-way untraceable forms) 
unless they seem some advantages. "Protecting their privacy" alone is 
not sufficient, at least not for most transactions (buying things in 
stores, buying books and computers online, CDs, DVDs, etc.).

The " millicent ghetto" is especially unfruitful as a market for digital 
cash, at least at our level.

As I have said, some people make efforts to open offshore bank accounts, 
for income tax evasion, money laundering, purchase of illegal items, 
etc. The crackdown on offshore-backed VISAs and Mastercards is in the 
news. This provides some clue as to how much effort people will make to 
avoid certain kinds of traceability...and the efforts against banks and 
clearinghouses to stop these bypasses.

What would people really seek good 2-way digital cash for?

Anonymity and untraceability really matters when the consequences of 
being traced are serious. Selling child porn, for example. Examples 
abound..

What the world needs is not a good 5-cent digital money token, but a 
good $5 or $50 digital money token. And I mean "good," because law 
enforcement will be seeking to trace down who is buying and selling 
illegal warez.

Other illegal uses which could motivate use of digital cash are: online 
gambling/numbers games, buying and selling of corporate insider 
information, tax evasion (eventually), etc.

Redemption issues are not easy to arrange. Any bank which acts to issue 
and redeem/convert such tokens, when the main market is for trading 
child porn or other illegal warez, will likely be shut down by 
international bodies.

A tough nut to crack. But at least we should be thinking about the 
customer-driven uses, not trying to get convince Joe Sixpack that he 
really should be using digital cash online, especially when just last 
week he was happy to give his SS number for the online drawing for a 
free CD.
> Also who gets the first coins.  Just give them free to the first n
> people that ask and then let market decide from there.
>
> Also the in-out exchange is less convenient.  Perhaps with paypal now
> having wider acceptance people would trade this kind of digicash
> beta-bucks like scheme for real money paying with paypal with bidding
> on ebay as for the everquest internal currency.
>
> That might be an interesting experiment.  Or better yet for everquest
> or other popular VR gaming thing to replace their currency by digicash
> currency server, privacy for VR characters and their real-life
> players.

Game use is an interesting one, as we've talked about over the years. 
First, it may ostensibly seem "innocuous." Second, it both simulates and 
educates. Third, there is the potential for a "redemption leakage," 
e.g., where the artificial money of the artificial system is bought and 
sold by players (seen in Everquest recently, seen a decade ago with an 
Extropians reputation-rating system).

More generally, I'm a fan of building simulated systems which have more 
"moving parts" than just the "here's a digital cash" protocol...enjoy!" 
approach. Pieces in isolation are like giving someone a piece of a 
complicated machine and telling him to make use of it.

More on this later.



--Tim May
"They played all kinds of games, kept the House in session all night, 
and it was a very complicated bill. Maybe a handful of staffers actually 
read it, but the bill definitely was not available to members before the 
vote." --Rep. Ron Paul, TX, on how few Congresscritters saw the 
USA-PATRIOT Bill before voting overwhelmingly to impose a police state




Re: overcoming ecash deployment problems (Re: all about transferable off-line ecash)

2002-04-11 Thread Steve Schear

At 01:14 AM 4/12/2002 +1000, Julian Assange wrote:
> > Patent's aren't the problem - price of royalty is.  If Brands is willing
>
>No Patents are a problem. The total future cost, including the
>costs of all license negotiations and compliance burdens are
>unpredictable and consequently do not make a wise investment.

In the case of Chaum, patents are not the problem.  AFAIK, SW patents are 
still not recognized in a number of major countries (Australia, NZ, SA, 
etc.).  Since the Chaum patents are practiced only on the client side, it 
should be trivial to create/distribute the SW from one of these 
jurisdictions.  One could even include a client controlled SW switch 
setting to enable blinding and present it as "an increased security 
setting" with appropriate warnings about possible IP issues depending upon 
the locale of the client.

steve




Re: overcoming ecash deployment problems (Re: all about transferable off-line ecash)

2002-04-11 Thread Adam Shostack

On Thu, Apr 11, 2002 at 02:37:50PM +0100, Adam Back wrote:
| - deployment / chicken and egg problem (merchants want lots of users
| before they're interested users want wide merchant acceptance before
| their interested)

I think its worse than that.  The normal technology adoption curve is
that you have people ("visionaries" or "early adopters" who are
willing to use expensive technology with a high learning curve to get
something that they want.  When they get a sufficient critical mass,
you move to the early mass market.  However, with ecash you have the
problem that you need to convince not only the users who care about
their privacy, but also the merchants to accept it, and the banks to
issue it.

Consider for a moment if the telcos had to agree to support fax
machines; or perhaps if they had to agree to support DSL. (oh wait,
they do.)

Thus, ecash deployment is a 3 party problem, where most new
technologies that succeed are not.  I'm honestly not sure if the
patents make a big difference in our ability to deploy, given that
they're a small speed bump on the way to this brick wall.

Sure, its easy, and even fun, to rail on about them, because maybe if
we rail at the patent owners long enough, they can be changed, whereas 
the economic realities are not so subject to persuasion.

Adam


-- 
"It is seldom that liberty of any kind is lost all at once."
   -Hume





Re: overcoming ecash deployment problems (Re: all about transferable off-line ecash)

2002-04-11 Thread Mike Rosing

On Thu, 11 Apr 2002, Adam Back wrote:

> Well I also am pretty anti-patent, especially the xor-cursor and
> business process kind, but at least these ecash patents are not
> frivolous patents (well Chaum's RSA blinding online scheme may look
> pretty simple once you've seen it but Brands stuff is pretty
> non-obvious).  Plus for the particular application of ecash it would
> seem the biggest stumbling blocks are:

Patent's aren't the problem - price of royalty is.  If Brands is willing
to get .01 cents per bank per day, he'll be plenty rich and the banks
won't lose too much.  But the reason we have AC today is because Tesla
requested no royalties on his motor/generator.  Something for Brands to
think about.

> - deployment / chicken and egg problem (merchants want lots of users
> before they're interested users want wide merchant acceptance before
> their interested)

If people believe (notice Tim?) that when they transfer bits from their
electronic wallet to the dealer, and the bank believes when the dealer
transfers bits into his account that the bits are "money" then everybody
will want to use it.

The idea of "coins" isn't fluid enough, people want something more like
a checkbook.  They can move any amount of money from their wallet to
somebody else's wallet, and it needs to be just like cash - it can
have a serial number, but it's not linked to any person.  

Merchants don't like credit cards because it costs them.  If they could
use electronic cash - they'd take it in a heartbeat.

Patience, persistence, truth,
Dr. mike