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Showing 18 of 18 results by Eluc
Post
Topic
Board Electrum
Re: Moving Electrum Wallet files into True Crypt
by
Eluc
on 21/11/2013, 10:56:02 UTC
I'm using an offline computer for storage. Do you think it is worth moving all the files or maybe just the .dat file into a truecrypt drive or is that unnecessary and potentially could lead to glitches?

Yes you should. As suggested on the Electrum tutorial you should store all the electrum data on an encrypted folder. From Electrum website you can read: "I would advice a Debian installation with encrypted home folder for extra security." So if you choose to have a Linux with encrypted home folder it should be ok, if you use a folder (on Linux or another OS) without encryption the best would be to work in a TrueCrypt container.

There is no way that you get glitches or so, TrueCrypt is reliable. The most important with offline wallet is what you do with your backup seed. You should store it in a safe place. The safer is to memorize it and never write it down but imagine that for any reason you could not remember it or if you passed away (don't wish it of course) and you would to transfer your bitcoin to an inheritor the should have access to your seed to restore wallet. You have to think about many scenarios.

Another good training is to create a wallet (online or offline), transfert a few mBTC on it and then delete everything and figure out how to restore your wallet.
Post
Topic
Board Armory
Re: PLEASE Backup your wallet! A Paper Backup is *Forever*!
by
Eluc
on 11/10/2013, 13:22:15 UTC
"It doesn't matter how many addresses you use -- they're all derived from the information on that paper backup!"

I've a question about paper backup, as there is nearly a new address created for each transaction we can reach a pretty good amount of address inside one wallet (on the example screenshot we see 50 address). Is there a limit on how many address one (paper) backup can restore ? There should be a limit otherwise every wallet will had to "reserve" all possible address in order to be sure that no one use the same address that you could potentialy "create or release (?)" from on wallet in the future.... Not sure to be clear.
Post
Topic
Board Service Announcements
Re: [ANN] CardsForBitcoins.com - Instantly Exchange Bitcoins for Amazon Giftcards
by
Eluc
on 28/04/2013, 21:18:01 UTC
Great services, I was looking for something like that. But unfortunately I'm not in US, would you plan to add other country declination of amazon gift card (UK, France, Germany, Japan,...) ?
Maybe even other web shops ? Top Up for phone card ?

A strong and secure website like that that propose many redeem code for many websites and services with automated process would definitely be a big success.

Definitely looking in to other Amazon countries and other types of gift cards in general. In order to allow for instant delivery, however, all the gift cards have to be purchased up front which can get a bit pricey Wink. Eventually, however, I agree it would be ideal to have a large selection.

Would certainly be great to get more feedback as to the countries and sites people would be most interested in.

Cheers,

I was wonder but you just replay before I asked, so you have to buy the gift card in advance... couldn't you do a script that order an email gift card on request ? Si you can delivery within minutes without pre-paying a bunch of gift card in advance. Of course in this case you're website security has to be very strong because you don't want an hack to use the script to order a lot of gift card with your amazon account (credit card), and you should set some limits according to your credit card limit. This is not viable in case of big success of the services (unless you have a black visa unlimited Wink
Other solution I thought of is a mix of both. You pre-purchase an amount of voucher in advance and then re-order this amount every time the stock is less than 10 or 20%. And you can adapt the amount according to the demand of each type of voucher.

I ask myself this kind of questions because I thought about a similar website for phone card (credit refill) for my country and maybe other vouchers, but I don't have enough knowledge to build and manage a website like this with the required level of security. I'm discussing the concept with colleagues and friends that are software engineers (I'm an electrical engineer ... not very useful for that project even if I have most of the software and webmaster basis for classic website and programs without high level of security).
Post
Topic
Board Trading Discussion
Re: What is the best exchange for Switzerland ?
by
Eluc
on 26/04/2013, 06:14:50 UTC
Thanks for your answer, I will give a try to Bitcoin.de so. The only thing that could be a problem is the delay. I imagine that between the order on the platform, the time both party take to execute transfer, on the bitcoin side it should be fast but on bank side it can take 2-3 days or more in case of bank holiday. Then the escrow has to be released on both side... More than one week in total could be possible. It's great when the bitcoin value is stable and when you don't need bitcoin within hours but now that the value of bitcoin varies from 10-20% per days sometimes it could be very frustrating and could cause some lost of money during the delay. Of course when the bitcoin will be stable (no more that 1-2% variation per days or week) it will be the best way to buy and sell them.
Post
Topic
Board Trading Discussion
Topic OP
What is the best exchange for Switzerland ?
by
Eluc
on 25/04/2013, 07:28:04 UTC
Hello,

I'm looking for the best exchange platform for people with only a Swiss bank account. The main problem is deposit and withdrawal fees.

Every exchange outside EU has quite high fee for accepting incoming and outgoing bank transfert (Mt Gox for example, even if I will try to avoid it for many other reasons).

Bitstamp says to accept SEPA transfert for free but in fact SEPA from Switzerland come with 15$ fee ! (Even if Switzerland is a part of SEPA). And I don't know for withdrawal, could be ever more...

Bitcoin-Central was accepting it without fees for incoming transfert and with 1€ fee for withdrawal, but it's no more accepting account from outside EEA and there have been closed for the third or fourth time this month due to security issue or so...

Bitcoin.de has I understand connect directly seller and buyer so every transaction need a bank transfer, that is not ideal, even if the idea is quite good for buying and selling

Any better alternative ?
Post
Topic
Board Service Announcements
Re: [ANN] CardsForBitcoins.com - Instantly Exchange Bitcoins for Amazon Giftcards
by
Eluc
on 24/04/2013, 11:09:02 UTC
Great services, I was looking for something like that. But unfortunately I'm not in US, would you plan to add other country declination of amazon gift card (UK, France, Germany, Japan,...) ?
Maybe even other web shops ? Top Up for phone card ?

A strong and secure website like that that propose many redeem code for many websites and services with automated process would definitely be a big success.
Post
Topic
Board Économie et spéculation
Re: 50$ 55$ support
by
Eluc
on 16/04/2013, 16:53:31 UTC
F**k ça remonte déjà j'ai pas pu suivre au taff. J'ai tapé un peu bas et j'ai ramassé que 1/3 de ce que j'aurais voulu acheter. Mais n'empêche c'est descendu aussi bas que la fois précédente, donc les rebonds qui diminue je ne trouve pas trop (ou alors tu disais vers le haut uniquement ? je trouve que c'est un peu tôt pour le dire).
Bon se sera pour la prochaine, j'ai pas trop d'achat en Bitcoin de prévu ces temps. J'aurais plus de besoin cet été si Paymium sont toujours prêt à proposer la carte de débit au comptes vérifiés (en même temps ils sont habitués au retards donc je me fais moins d'illusions depuis le 1 avril vis à vis de Paymium).
Post
Topic
Board Économie et spéculation
Re: 50$ 55$ support
by
Eluc
on 14/04/2013, 22:41:01 UTC
Donc maintenant la stratégie c'est acheter des Youpi... heu pardon acheter le plus bas possible chaque fois que cela va descendre dans les 40-60€ et attendre la prochaine exponentielle pour vendre et racheter dans le trou qui va se former après l'éclatement de la bulle 3.

Le tout est de savoir où sera la plus bas que cela va tomber. J'ai déjà acheté pas mal à 50€ par contre à 45€ rien n'est passé, là c'est stabilisé vers 75-85€ mais le tout est de savoir si cela va redescendre autant ou non (ou plus encore mais je doute). Ceux qui ont pas mal de cash et de BTC à laisser sur les sites d'échanges peuvent tapisser des valeurs à l'achat dans la bas de l'échelle qu'ils prédisent (genre tous les 5 BTC entre 30 et 60 par exemple) et attendre que les BTC rentrent. Et lors que cela sera en train de remonter trop rapidement comme avant le 10 avril, le plus sûr serait de vendre un peu à chaque échelon afin de ne pas se faire avoir au moment du prochain crash (où moins en tous cas) et là profiter des vagues pour faire un peu de ping pong et remonter les caisses.

Dommage que je n'avais pas compris cela avant de paniquer comme un con le 10 avril. On va voir si j'ai retenu la leçon même si j'ai pu limiter les dégâts.
Post
Topic
Board Trading Discussion
Re: bitcoin price, volume and offline exchanges alerts (new website)
by
Eluc
on 12/04/2013, 20:59:48 UTC
Hi !
Look interesting, could be great if we could set 2 limits for each parameter (one for high, one for low).
Post
Topic
Board Trading Discussion
Re: Where to trade , is bitcoin-24.com reputable ?
by
Eluc
on 12/04/2013, 20:49:39 UTC
Bitcoin-Central is great for EUR (with SEPA transfer for cheap). They were down the first week of April but there were online nons-top since 2011 before that and on 10th April it was the only exchange website I know that was working all time long during the crash down.
However it's maybe not the best for quick buy and sell to take advantage of small fluctuation as there is a little less volume. Expect to get some inertia during fast variations (but could be a good point too if you're clever and a little lucky).
Post
Topic
Board Trading Discussion
Re: bitcoinity.org/markets - live bitcoin price charts
by
Eluc
on 12/04/2013, 20:42:45 UTC
Hi ! I use a lot Bitcoinity but I'm trading most of my coins on Bitcoin Central. Could it be possible to add this platform in the future ? Thanks to consider !
Post
Topic
Board Economics
Re: Bubble Trouble, or is it?
by
Eluc
on 10/04/2013, 18:26:50 UTC
It's over... price is going down faster than transaction confirmations.
Post
Topic
Board Service Announcements
Re: Bitcoin-central resumes operations
by
Eluc
on 09/04/2013, 17:03:36 UTC
UPDATE:

Following the DDoS attack of today, verified account holders can write to support@bitcoin-central.net to receive a signed message with an alternate url.

The message will be signed by Davout whose public key is available from the Web of Trust on Bitcoin OTC.

I'm waiting for the email replay... I hope I can access my fresh bitcoin, I need it for buying stuff (yeah some people still use it for that...).

EDIT: I got the link thank you. I've made a bitcoin withdrawal, it's displayed as "Done" but there is no trace after a few minutes ?! Should I expect delay or something ?
Post
Topic
Board Discussions générales et utilisation du Bitcoin
Re: Où est-il le plus sécuritaire de garder ses Bitcoins ?
by
Eluc
on 08/04/2013, 15:29:28 UTC
Il y a plusieurs philosophies.

1) Logique bancaire: faire confiance à une instit tiers qui a suffisamment prouvé sa confiance et sa fiabilité.
Avantages:
- Pas besoin de ce soucier de la sécurité informatiques, même si il faut quand même veuillez à sécuriser l'accès à son compte (mot de passe intelligent et si possible double authentification type Yubikey et Google Authentificator).
- Accès facile et rapide à ses BTC en tous temps et endroits (il suffit d'un accès internet, parfois même un smartphone suffit).
Inconvenants: pour l'instant très peu de sociétés sont liées à un instit bancaire ("de confiance") et même les banques font faillites (multiples exemples dans le monde) ou peuvent prendre notre argent en otage (Chypre). La loi n'est pas encore établie quand à la valeur des Bitcoin et donc la récupérer de son bien en cas de problème avec la société tiers.

2) Logique porte monnaie: garder l'argent dans un (des) wallet(s) crypté(s) sur son ordinateur connecté à internet.
Avantage: accès rapide à ses BTC mais uniquement depuis son ordinateurs avec client Bitcoin synchronisé.
Inconvenants: il faut prendre soin de sécuriser au maximum son ordinateur pour que personne ne puisse accéder à son wallet et sa clé privée. Utiliser Linux peut aider à limiter le risque de virus ou cheval de Troie. Utiliser plusieurs adresse Bitcoin afin de ne pas trop montrer sa fortune peut aider à ne pas attirer la convoitise de pirate (fournir une addresse avec peu de BTC reçu pour les réceptions de payement et si possible la changer souvent).

3) Logique coffre fort: wallet offline (cold) stocké sur ordinateur hors ligne à l'aide de Armory par exemple.
Avantage: sécurité très grande, il faut juste prendre soin de faire un paper backup de sa clé privée et de la conserver ne lieux surs (si possible plusieurs endroit éloignée physiquement pour éviter la perte par dégâts naturel ou cambriolage) et protéger un minimum le PC offline en cas de cambriolage également (quoi que je doute que beaucoup de cambrioleur savent ce qu'est un Bitcoin et sauront reconnaitre la valeur potentielle d'un paper backup si ils tombent dessus)
Inconvenants: accès à son argent plus fastidieux et retraits plus long à effectuer.

Bien entendu il faut travailler avec la combinaison de 2 ou 3 de ces solutions intelligemment. S'informer un maximum sur comment cela fonctionne et agir sagement et prudemment. Et pour les 3 types de wallet (et en particulier 1 et 2) savoir répartir ses oeufs dans différents panier permet de ne pas tous les perdre en cas de soucis.
Post
Topic
Board Beginners & Help
Re: Bitcoin Central, Paytunia, Paymium again late after more than 4 days offline
by
Eluc
on 06/04/2013, 00:25:22 UTC
Hum update on the Paytunia home page https://paytunia.com/ but not paymium or Bitcoin central yet.

"we are going to resume services gradually starting today, April 5th 2013"... well we are already April 6th CET (where the company is located) and still nothing.
Waiting for tomorrow.

Any clue of what will happen at the reboot ? an occasion to get cheap BT ? or the opposite, everybody using this platform will take every BTC out to sell them somewhere else making the price going much higher than other exchange platform ?

I bet more on second one for the very start, then it will stabilized with people coming to get opportunty to sell at higher price so price will regulate to normal value very fast.

More pronostics ?
Post
Topic
Board Beginners & Help
Topic OP
Bitcoin Central, Paytunia, Paymium again late after more than 4 days offline
by
Eluc
on 05/04/2013, 20:38:08 UTC
Hello,

I'm still waiting on Paytunia / Bitcoin Central for coming back online as I've just sent them some money 2 days before the issue. They annonced a coming back after 48h then 72h later they told about 48h again... now it's about 5 days since the website when offline and we have really a few information. It's very very creepy.

There were many annonces from the creator of Paymium on this forum and now there are silent. Strange no ?

Any news from others sources ?
Post
Topic
Board Beginners & Help
Re: MultiBit Lost BTC
by
Eluc
on 05/04/2013, 09:10:13 UTC
Hello,
you should always do a paper backup of your wallet. If so you can restore it anytime in case of problem with your bitcoin client.

Are you on windows ? linux ? you should locate your user data and find the wallet file. wallet.dat or something. Sorry I'm not very familiar with multibit.
Post
Topic
Board Beginners & Help
Re: Bitcoin central Security breasch!!!
by
Eluc
on 03/04/2013, 08:33:01 UTC
I've made a quite large tranfert to Paytunia just one week ago, and I'm still unable to buy my bitcoin. This weekend I've made another transfert to Bitstamp but it's still unavailable on my account and every f***ing minutes I check BitStamp the price goes up very fast ! It's driving me so crazy right now...

I had such trust in Paymium as they were associated with a bank and as they will be offering credit card to spend Bitcoin but now I'm more and more spectical on their future and the future of my money on their account.

Are you guys ampting to take action after the site will be back, in order to get a payement of the damages they cost to their customers ?? I mean all this time they've got a lot of BTC sleeping on their account so they can give compensation at least.