[ANNOUNCE] Electrum - Lightweight Bitcoin Client - page 84.

grondilu

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Quote from: BTCurious on December 22, 2011, 12:53:01 PM

Quote from: grondilu on December 22, 2011, 10:14:23 AM

However, I recently thought about using /usr/share/dict/words, which is -at least in french-, about 136,000 words long. This reduces the number of final words to height (for a 128 bit keys), which might be a significant improvement.

Is this dictionary constant? Can we rely on it being the same in 10 years? Because if not, then that's not an option.

Indeed. I worry about that as well but I'm not sure we have more guaranties with the contemporary poetry.

Red Emerald

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Quote from: ThomasV on December 22, 2011, 01:48:18 AM

Quote from: Red Emerald on December 21, 2011, 09:36:01 PM

Quote from: terrytibbs on December 21, 2011, 08:05:17 PM

Quote from: Red Emerald on December 21, 2011, 07:58:24 PM

Could it be made so that the deterministic addresses and the imported ones can be exported separately? That way I could export just the non-deterministic keys for backup or whatever

Thomas just posted how to export all keys above, just grab the one you imported manually and note it down.

I don't want to have to worry about splitting my exports manually. That isn't feasible for scripted backups. The ability to export just the non-deterministic keys would make automated backups that don't expose the deterministic keys that don't need to be backed up.

did you test the command? imported keys are marked as such. you can do :

Code:

python electrum.py addresses -k | grep imported

Oh that will work just fine. I didn't realize that they were marked with "imported".

BTCurious

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^SEM img of Si wafer edge, scanned 2012-3-12.

Quote from: grondilu on December 22, 2011, 10:14:23 AM

However, I recently thought about using /usr/share/dict/words, which is -at least in french-, about 136,000 words long. This reduces the number of final words to height (for a 128 bit keys), which might be a significant improvement.

Is this dictionary constant? Can we rely on it being the same in 10 years? Because if not, then that's not an option.

grondilu

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Activity: 1288

Merit: 1080

Quote from: ThomasV on December 21, 2011, 12:14:44 PM

Quote from: grondilu on December 21, 2011, 04:36:22 AM

I think the mnemonic algorithm is kind of weird (using quartets of bytes??)
I suggest we use the full 2000 english words list with a complete base2000 encoding:

any reason for doing that?

Well, 2000 is an easier number to remember and that's the number of words in the wikitionary page anyway. Other wise you have to remember that 1626 is the lowest number n such as n**3 > 256**4 or something. That's a bit odd.

But that doesn't change the final number of words in the mnemonic anyway, so I guess it does not matter much.

However, I recently thought about using /usr/share/dict/words, which is -at least in french-, about 136,000 words long. This reduces the number of final words to height (for a 128 bit keys), which might be a significative improvment.

molecular

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Activity: 2772

Merit: 1019

Quote from: slush on December 21, 2011, 01:00:50 PM

I'd like to enourage pythonist interested in Electrum client to review code implementing new network protocol (proposed in https://docs.google.com/document/d/17zHy1SUlhgtCMbypO8cHgpWH73V5iUQKk_0rWvMqSNs/edit?hl=en_US - the last chapter is not finished yet). Repository of server is https://gitorious.org/electrum-server/electrum-server.

You can start server by typing

Code:

twistd -ny server.tac

and run some easy client side by

Code:

python client.py

. You'll need to install Twisted framework (easy_install twisted).

The goal of my project is to provide easy, extensible protocol and fast, flexible, service-based, multi-layer implementation. For now, TCP socket and HTTP(S) polling is implemented. Pubsub infrastructure described in google document (server which actively broadcast messages to clients) is in progress.

This is alpha implementation and there can be some weird bugs thanks to asynchronous server implementation, but so far I don't see any of them. Feel free to ask me to anything or comment the solution. Constructive criticism is welcome.

Code:

nick@zero ~/bitcoin/electrum-protocol/python-twisted $ python client.py --help
Registered for service 'discovery', vendor 'Electrum' (default: True)
nazdar
[u'node', u'firstbits', u'discovery']
[u'firstbits.com']
[u'resolve', u'create']
1MarekMKDKRb6PEeHeVuiCGayk9avyBGBB
1marekm

so, after a rough look, it seems you implemented "firstbits" lookup by falling back to firstbits.com api, right?

This seems to me it would be the time now to start implementing a "real" server?

What exactly are you asking us to do?

HostFat

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I support freedom of choice

Quote from: BkkCoins on December 22, 2011, 04:53:21 AM

Regarding the "green address" discussion a while back - wouldn't it be very simple and achieve similar goals to have an option that lets users say "below this value, confirmations aren't required"? So a user may decide when he receives say 1 BTC or less he's not going to enforce the 6 confirms needed to treat it as good. Thus paying for coffee or something isn't worth holding everything up for.

Good idea, I would like also to see an editable list of "green addresses".
So if I trust some addresses I can make the client always accepting bitcoins from them without confirmations and with every value.

Even better, some more options:
- All address: accepting bitcoin without confirmations if the value is lower than xxx

Green address list:
- Address A: accept bitcoin without confirmation at any value
- Address B: accept bitcoin without confirmation at value lower then xxx
- Address C: accept bitcoin with 2 confirmation at any value
- ...
- ...

BkkCoins

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Activity: 784

Merit: 1009

firstbits:1MinerQ

Regarding the "green address" discussion a while back - wouldn't it be very simple and achieve similar goals to have an option that lets users say "below this value, confirmations aren't required"? So a user may decide when he receives say 1 BTC or less he's not going to enforce the 6 confirms needed to treat it as good. Thus paying for coffee or something isn't worth holding everything up for.

ThomasV

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Activity: 1896

Merit: 1353

Quote from: Red Emerald on December 21, 2011, 09:36:01 PM

Quote from: terrytibbs on December 21, 2011, 08:05:17 PM

Quote from: Red Emerald on December 21, 2011, 07:58:24 PM

Could it be made so that the deterministic addresses and the imported ones can be exported separately? That way I could export just the non-deterministic keys for backup or whatever

Thomas just posted how to export all keys above, just grab the one you imported manually and note it down.

I don't want to have to worry about splitting my exports manually. That isn't feasible for scripted backups. The ability to export just the non-deterministic keys would make automated backups that don't expose the deterministic keys that don't need to be backed up.

did you test the command? imported keys are marked as such. you can do :

Code:

python electrum.py addresses -k | grep imported

ThomasV

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Activity: 1896

Merit: 1353

Quote from: marcus_of_augustus on December 21, 2011, 07:45:43 PM

Can you confirm if the following is correct?

The imported keys are not contained among the deterministic key set generated so if/when you delete your wallet the imported keys will not be coming back when you use the seed-phrase to regenerate the deterministic portion of the wallet.

that is correct. perhaps I should add a big fat warning during the import command?
in any case, I think that this command should not be available from the gui, in order to make sure that it is not used too easily.

Red Emerald

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Activity: 742

Merit: 500

Quote from: terrytibbs on December 21, 2011, 08:05:17 PM

Quote from: Red Emerald on December 21, 2011, 07:58:24 PM

Could it be made so that the deterministic addresses and the imported ones can be exported separately? That way I could export just the non-deterministic keys for backup or whatever

Thomas just posted how to export all keys above, just grab the one you imported manually and note it down.

I don't want to have to worry about splitting my exports manually. That isn't feasible for scripted backups. The ability to export just the non-deterministic keys would make automated backups that don't expose the deterministic keys that don't need to be backed up.

terrytibbs

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Activity: 560

Merit: 501

Quote from: Red Emerald on December 21, 2011, 07:58:24 PM

Could it be made so that the deterministic addresses and the imported ones can be exported separately? That way I could export just the non-deterministic keys for backup or whatever

Thomas just posted how to export all keys above, just grab the one you imported manually and note it down.

Red Emerald

hero member

Activity: 742

Merit: 500

Quote from: terrytibbs on December 21, 2011, 07:50:37 PM

Quote from: marcus_of_augustus on December 21, 2011, 07:45:43 PM

Quote from: ThomasV on December 21, 2011, 12:21:51 PM

I just uploaded version 0.35 to the website.

Changelog:
* New 'import' command to add extra keypairs to your wallet. Example:

Code:

python electrum.py import 1MtQTsraWDcb7REUnVu8LS9hZswrLfWbH9:5KeCdRAkygEGfSzQ3ZNpQ2qE6PdEYCZ52S9Uq5DoBxkSgayX6ng

Note that you can export your keypairs in the same format using:

Code:

python electrum.py addresses -k

Can you confirm if the following is correct?

The imported keys are not contained among the deterministic key set generated so if/when you delete your wallet the imported keys will not be coming back when you use the seed-phrase to regenerate the deterministic portion of the wallet.

That goes without saying, does it not?

Could it be made so that the deterministic addresses and the imported ones can be exported separately? That way I could export just the non-deterministic keys for backup or whatever

Ryland R. Taylor-Almanza

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How is electrum-qt coming along?

terrytibbs

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Activity: 560

Merit: 501

Quote from: marcus_of_augustus on December 21, 2011, 07:45:43 PM

Quote from: ThomasV on December 21, 2011, 12:21:51 PM

I just uploaded version 0.35 to the website.

Changelog:
* New 'import' command to add extra keypairs to your wallet. Example:

Code:

python electrum.py import 1MtQTsraWDcb7REUnVu8LS9hZswrLfWbH9:5KeCdRAkygEGfSzQ3ZNpQ2qE6PdEYCZ52S9Uq5DoBxkSgayX6ng

Note that you can export your keypairs in the same format using:

Code:

python electrum.py addresses -k

Can you confirm if the following is correct?

The imported keys are not contained among the deterministic key set generated so if/when you delete your wallet the imported keys will not be coming back when you use the seed-phrase to regenerate the deterministic portion of the wallet.

That goes without saying, does it not?

marcus_of_augustus

legendary

Activity: 3920

Merit: 2349

Eadem mutata resurgo

Quote from: ThomasV on December 21, 2011, 12:21:51 PM

I just uploaded version 0.35 to the website.

Changelog:
* New 'import' command to add extra keypairs to your wallet. Example:

Code:

python electrum.py import 1MtQTsraWDcb7REUnVu8LS9hZswrLfWbH9:5KeCdRAkygEGfSzQ3ZNpQ2qE6PdEYCZ52S9Uq5DoBxkSgayX6ng

Note that you can export your keypairs in the same format using:

Code:

python electrum.py addresses -k

Can you confirm if the following is correct?

The imported keys are not contained among the deterministic key set generated so if/when you delete your wallet the imported keys will not be coming back when you use the seed-phrase to regenerate the deterministic portion of the wallet.

slush

legendary

Activity: 1386

Merit: 1097

I'd like to enourage pythonist interested in Electrum client to review code implementing new network protocol (proposed in https://docs.google.com/document/d/17zHy1SUlhgtCMbypO8cHgpWH73V5iUQKk_0rWvMqSNs/edit?hl=en_US - the last chapter is not finished yet). Repository of server is https://gitorious.org/electrum-server/electrum-server.

You can start server by typing

Code:

twistd -ny server.tac

and run some easy client side by

Code:

python client.py

. You'll need to install Twisted framework (easy_install twisted).

The goal of my project is to provide easy, extensible protocol and fast, flexible, service-based, multi-layer implementation. For now, TCP socket and HTTP(S) polling is implemented. Pubsub infrastructure described in google document (server which actively broadcast messages to clients) is in progress.

This is alpha implementation and there can be some weird bugs thanks to asynchronous server implementation, but so far I don't see any of them. Feel free to ask me to anything or comment the solution. Constructive criticism is welcome.

ThomasV

legendary

Activity: 1896

Merit: 1353

I just uploaded version 0.35 to the website.

Changelog:
* New 'import' command to add extra keypairs to your wallet. Example:

Code:

python electrum.py import 1MtQTsraWDcb7REUnVu8LS9hZswrLfWbH9:5KeCdRAkygEGfSzQ3ZNpQ2qE6PdEYCZ52S9Uq5DoBxkSgayX6ng

Note that you can export your keypairs in the same format using:

Code:

python electrum.py addresses -k

* random selection of the default server on wallet creation
* bug fix: previous version was not correctly synchronized after creating new addresses

ThomasV

legendary

Activity: 1896

Merit: 1353

Quote from: grondilu on December 21, 2011, 04:36:22 AM

I think the mnemonic algorithm is kind of weird (using quartets of bytes??)
I suggest we use the full 2000 english words list with a complete base2000 encoding:

any reason for doing that?

Quote

Well, the good thing is that anyone can do his own recipe with his client, as
the server is not supposed to be aware of the particular encoding, right?

indeed, that's something the server does not see.

molecular

donator

Activity: 2772

Merit: 1019

Quote from: grondilu on December 21, 2011, 04:36:22 AM

Code:

def mn_encode( number ):
return [words[number],] if number < n else [words[number%n],] + mn_encode( number/n + number%n )

def mn_decode( wlist ):
r = words.index(wlist[0])
return r + n*(mn_decode(wlist[1:]) - r ) if len(wlist[1:])>0 else r

Error -1: Stack Overflow

Was that translated from lisp code or something? ^^

grondilu

legendary

Activity: 1288

Merit: 1080

I think the mnemonic algorithm is kind of weird (using quartets of bytes??)

I suggest we use the full 2000 english words list with a complete base2000 encoding:

Code:

def mn_encode( number ):
return [words[number],] if number < n else [words[number%n],] + mn_encode( number/n + number%n )

def mn_decode( wlist ):
r = words.index(wlist[0])
return r + n*(mn_decode(wlist[1:]) - r ) if len(wlist[1:])>0 else r

Well, the good thing is that anyone can do his own recipe with his client, as
the server is not supposed to be aware of the particular encoding, right?

Topic: [ANNOUNCE] Electrum - Lightweight Bitcoin Client - page 84. (Read 274562 times)