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Topic: Wall Observer BTC/USD - Bitcoin price movement tracking & discussion - page 23880. (Read 26711458 times)

sr. member
Activity: 476
Merit: 501
All signs point to a big bounce in the next 3 weeks.

what signs?

Heresy detected.  Ignored.

I don't understand TA things Sad

It is a serious question
legendary
Activity: 2380
Merit: 1823
1CBuddyxy4FerT3hzMmi1Jz48ESzRw1ZzZ
member
Activity: 112
Merit: 10
All signs point to a big bounce in the next 3 weeks.

what signs?

Heresy detected.  Ignored.
sr. member
Activity: 476
Merit: 501
All signs point to a big bounce in the next 3 weeks.

what signs?
legendary
Activity: 1218
Merit: 1000
Can someone explain why a double bottom is not forming on the 1w charts?

maybe it is...we wont know until it breaks up (if it does)
We're looking at a big booty double bottom, not one of those skinny bulimic double bottoms.

I sure hope so....buying a bit right now
donator
Activity: 1736
Merit: 1014
Let's talk governance, lipstick, and pigs.
Can someone explain why a double bottom is not forming on the 1w charts?

maybe it is...we wont know until it breaks up (if it does)
We're looking at a big booty double bottom, not one of those skinny bulimic double bottoms.
legendary
Activity: 1218
Merit: 1000
Can someone explain why a double bottom is not forming on the 1w charts?

maybe it is...we wont know until it breaks up (if it does)
hero member
Activity: 845
Merit: 609
All signs point to a big bounce in the next 3 weeks.
sr. member
Activity: 434
Merit: 250
Can someone explain why a double bottom is not forming on the 1w charts?
legendary
Activity: 2380
Merit: 1823
1CBuddyxy4FerT3hzMmi1Jz48ESzRw1ZzZ
legendary
Activity: 1218
Merit: 1000
Is it just me or have the orderbooks changed to the bullish side of things?
legendary
Activity: 2674
Merit: 2373
1RichyTrEwPYjZSeAYxeiFBNnKC9UjC5k
Many thanks for your comprehensive answer!
It seems, as I've found in the last couple of hours, the use faulty PSRNG's might pose a threat, maybe significant enough to drive the price further down.
The unfolding story is here: https://bitcointalksearch.org/topic/m.8939173 I hope you'll find it interesting enough to consider including it in your great work (I'm closely following your posts) that you're doing on studying/documenting the whole ecosystem.

Thanks for the link and the compliment!

As I understood it, those Hyena guys claim that many wallet tools use PSRNGs that generate less than the required 2^160 bits of entropy.  They claim that the entropy is low enough that the chance of a collision is not negligible; and they have set up a lot of disk and computing power to catch for such collisions.

I doubt whether good PSRNGs, correctly implemented and used, have such a low entropy.  However, the probability of coding errors makes the project more plausible.  In conditional probability notation:

P(security broken) =
  P(software is correct) * P(security broken IF software is correct) +
  P(software is buggy) * P(security broken IF software is buggy)

A strong cryptographic method only ensures that the factor P(security broken IF software is correct) in the first term is astronomically small.  However, the factors P(software is buggy) and P(security broken IF software is buggy) are large enough to matter.  For bitcoin, empirically, the second term may be on the order of 1 in 10'000 or more, and is unlikely to decrease. (As time passes, the best implementations may get somewhat more secure; but the number of implementations will grow, so there will be fewer competent eyes checking each of them, and reports of coin theft will get less attention.)  Thus, P(security broken) should be large enough to notice, and will not be improved by switching to 512 bit keys or whatever.

For anyone really concerned, they may want to generate a private key with some dice.
legendary
Activity: 2380
Merit: 1823
1CBuddyxy4FerT3hzMmi1Jz48ESzRw1ZzZ
hero member
Activity: 910
Merit: 1003
Many thanks for your comprehensive answer!
It seems, as I've found in the last couple of hours, the use faulty PSRNG's might pose a threat, maybe significant enough to drive the price further down.
The unfolding story is here: https://bitcointalksearch.org/topic/m.8939173 I hope you'll find it interesting enough to consider including it in your great work (I'm closely following your posts) that you're doing on studying/documenting the whole ecosystem.

Thanks for the link and the compliment!

As I understood it, those Hyena guys claim that many wallet tools use PSRNGs that generate less than the required 2^160 bits of entropy.  They claim that the entropy is low enough that the chance of a collision is not negligible; and they have set up a lot of disk and computing power to catch for such collisions.

I doubt whether good PSRNGs, correctly implemented and used, have such a low entropy.  However, the probability of coding errors makes the project more plausible.  In conditional probability notation:

P(security broken) =
  P(software is correct) * P(security broken IF software is correct) +
  P(software is buggy) * P(security broken IF software is buggy)

A strong cryptographic method only ensures that the factor P(security broken IF software is correct) in the first term is astronomically small.  However, the factors P(software is buggy) and P(security broken IF software is buggy) are large enough to matter.  For bitcoin, empirically, the second term may be on the order of 1 in 10'000 or more, and is unlikely to decrease. (As time passes, the best implementations may get somewhat more secure; but the number of implementations will grow, so there will be fewer competent eyes checking each of them, and reports of coin theft will get less attention.)  Thus, P(security broken) should be large enough to notice, and will not be improved by switching to 512 bit keys or whatever.
legendary
Activity: 2380
Merit: 1823
1CBuddyxy4FerT3hzMmi1Jz48ESzRw1ZzZ
hero member
Activity: 748
Merit: 500
One more line added. - I call it the Chessnut line.



LOL  Grin
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