ight work for GPG
keys (just use gpg://u...@host.com for the URI) as well.
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On 21/02/15 14:49, 木ノ下じょな wrote:
> Thank you for your feedback. I have written the Abstract and Motivation.
Much better. Thanks!
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On 03/02/15 11:37, Andreas Schildbach wrote:
> Not really IMHO. Keys can be used on multiple blockchains.
Ah, correct. Timestamp it is.
Nitpick: They cannot be used on multiple blockchains according to BIP32.
In BIP43 we fixed that. :-)
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t; creation date.
I am not against Unix timestamps, I just said I expected something else
there. Unix timestamps have a lot of advantages. Another option that
might make sense is the block number.
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-
t should a wallet use if it encounters h=bip32?
What h value should I use for myTREZOR wallets? Which is essentially a
BIP44 wallet that produces h=bip32 xpubs with gap limit 20 ...
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sed
> Those strings are not meant to be read by humans. MMDD is more
> complicated than necessary, given that Bitcoin deals with seconds since
> epoch everywhere.
OK :-)
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-
the wallet (in seconds since epoch).
Uff, I would expect MMDD there so it's human readable as well.
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rather useless and in fact dangerous.
> I would suggest the developers make such functionality available for the user.
I would suggest looking at different software wallets that do support
such functionality such as Electrum or Multibit.
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Pav
< base58(pubkey2)
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tors)
Could you please describe what might get wrong if one uses deterministic
nonces for ECIES as well? Thanks!
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On 10/22/2014 10:46 AM, Chris D'Costa wrote:
> Looks great, but how would you resolve the problem of knowing for certain
> that the public key you have received to encrypt the message is not from a
> MITM?
Isn't this the same problem with PGP?
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d use your implementation.
Have you thought about pushing this as a new BIP (different one than I
mention above)? I think it's important to have it reviewed and
standardized ASAP.
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39!
Does it also support various HD wallet structures such as BIP44 for example?
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ghtforward to perform modulo if needed, so we probably
see more implementations doing the checking.
We would still need to deal with cases when I_L = 0 or ki = 0 or ki =
inf, but these have probability around 1 in 2^255.
Does anyone see any concerns when it comes to security of the proposed
chang
ards / S pozdravom,
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signature.asc
Description: OpenPGP digital signature
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> addresses for that root seed.
Unless the keyspace is almost infinite because:
> The hierarchy that the wallet actually uses could be anything.
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al
> complexity.
Right. See my previous email where I describe hypothetical creation of
BIP65 and BIP66 which the exact thing you describe.
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x27;s not good to use classic bank accounts as analogy, but that's
exactly how they work. Or have you every done ONE transaction from two
bank accounts simultaneously?
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---
On 04/23/2014 11:18 PM, Luke-Jr wrote:
> Only a very niche user base needs funds isolated...
Our users do and we are creating this BIP for them, because we love them. ;)
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would like to make it obvious from the spec that if you mix funds
accross the accounts you are not doing a right thing and you are not
compliant to the spec.
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have no right to call themselves BIP64
compatible then.
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t
addresses.
> In that case, single-subwallet wallet software probably needs to have the
> user
> provide a subwallet number in addition to the seed.
Which brings us back to my original complaint that the user can be
confused because he doesn't see all his fun
have not read the document
d) you don't understand that accounts funds are not meant to be mixed
together, because you have not read the document
e) I got your emails wrong because I am not a native speaker,
but please read the the document ;-)
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ing account index to 0). The user now sees just a
fraction of his coins and is puzzled.
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n context of
generating the tree.
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t a small extra cost in that case.
Not if you have 100 accounts on 10 different devices.
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meaning both "credit" and "debit" such
as in "You can use crebit cards here".
Also this Wikipedia source is a list of sometimes rather funny
possibilites: https://en.wikipedia.org/wiki/List_of_fictional_currencies
--
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Pavol Rusnak
--
on magic
that leads to prefix "lulz").
Also from wallet's implementer perspective it is a little easier to use
just one root node and then descend in tree as needed than to use method
you described.
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Pavol Rusnak
ype in path is for separation purposes, not for identification.
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ake sense at all once you start
storing various altcoins in the same tree using the proposed
/m/cointype/reserved'/account'/change/n scheme.
I would love to see that removed from BIP-32 and use always
0x0488B21E/0x0488ADE4 (xpub/xpriv), but that is for different discussion
I guess.
--
and a
server (e.g. when backend sends responses in "bulks" of 10 addresses or
more).
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ns that the scan will stop as soon as we
hit first account with no transaction history (meaning that its first
X=10 addresses are unused).
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"altcoin" that is pretty important even today and it is
Testnet.
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Testnet or TestNet ...)?
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le time even on very slow embedded ARM processors.
To give you some numbers: TREZOR (120MHz ARM) does 1024 rounds of
PBKDF2-HMAC-SHA512 in around 1 second.
So 2^16 is around one minute, 2^21 is around half an hour.
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antly compromising the security of the wallet.
By disclosing "preH" to compromised computer (between steps 4 and 5) you
make further steps 5-9 quite less important.
Too bad you started to work on spec just recently. :-/
--
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ght that outsourcing the KDF means allowing
the 3rd party to use any KDF instead of the specified ones. What would
be the reason to outsource if this is not possible, anyway?
--
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-
ient that is
unusable in a different client, because the client's developer thought
that using fancier algorithm instead of the proposed ones was a good idea.
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f possible options.
> - BIP 39 wallet implementors can use their own word lists, breaking cross
> wallet compatibility.
True, but they are encouraged to use the list provided. Possibility to
outsource KDF outside of your "standard" breaks much m
have a
> reference implementation.
Are you aware of BIP-0039?
https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki
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On 02/24/2014 05:45 PM, Gavin Andresen wrote:
> 40 bytes is small enough to never require an OP_PUSHDATA1, too
So are 75 bytes. (I'm not trying to push anything. Just saying ...)
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Pavo
ion to what
DER already does) is very confusing.
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k on a trusted computer that everything was ok
(note that steps b-d are the same regardless of whether the special flag
was set)
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ight. That's a problem. I'm not sure if this whole cryptomagic is
benefitial at all.
I'd suggest to go the easy way for now, i.e. prove that external entropy
was used while generating the master seed. If the user does not trust
our firmware, he can use his own built one.
--
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On 04/11/13 16:10, Timo Hanke wrote:
> Does Trezor even use private derivation?
No. It can't. Private keys never leave the device so client would not
know how to generate addresses.
--
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Pavo
explanation is. Well, or rather was. I think we are past the point where
it was wise to introduce changes to the word list ... (especially when
50 people have 51 different opinions on this topic)
--
Best Regards / S pozdravom,
playing with that idea quite a lot. The problem was that we
ended up with much bigger wordlist and thus it had to contain more
obscure words. Also remember that this scheme has to run on embedded
devices as well, so any unnecessary complexity should be avoided.
--
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On 10/09/13 23:03, Matthew Mitchell wrote:
> Maybe it would have been better without the aggressive words?
I revisited the wordlist and replaced around 67 words that can be
found offensive in some context.
--
Best Regards / S pozdravom,
Pavol Rus
you can see it's still
not perfect.
Please bear in mind that for every word you remove from the list, you
have to come up with a good alternative that is unique and hard to
confuse with the others.
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