Archives pour la catégorie Informatique

Contenu : Développement web, administration système, veille technologique et commentaires de l’actualité (rarement, parce que je n’aime pas l’info qui se périme).
Objectifs : Commenter, enseigner, me valoriser auprès d’employeurs.

How to configure a Google account on a mobile with two-factor authentification

You have a new Android smartphone and you have two-factor authentification enabled, and of course your SIM card is in your new phone.

When you configure your smartphone, you are asked for you Google password, then followed by your 2FA code, sent by SMS. Problem: you cannot read the SMS because it is sent to the same phone and you cannot swith to SMS reading until configuration is finished. Catch-22.

Solution: use emergency code (https://accounts.google.com/b/0/SmsAuthSettings) that you will access from a computer. Print  some also.

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Cryptomonnaies : l’argent autrement… et plus loin

La séance sera consacrée aux cryptomonnaies, et notamment à Bitcoin (la plus capitalisée) et Monero, (la petite dernière qui capitalise… le meilleur de la réflexion sur les cryptomonnaies).

Nous aurons l’honneur de recevoir David LATAPIE. Gascon et Parisien, David LATAPIE travaille depuis 2014 dans le domaine des cryptomonnaies. Géographe et informaticien de formation, il est membre du comité directeur de Monero, une cryptomonnaie respectant la vie privée et la neutralité du net. Il se concentre plus particulièrement sur la promotion des cryptomonnaies et l’étude des impacts sociétaux de celles-ci sur le monde de demain.

Les cryptomonnaies sont des processus logiciels communautaires permettant grâce au cryptage d’échanger de façon sécurisée et virtuelle des unités de comptes. Elles sont donc techniquement utilisables comme monnaie par des communautés humaines les adoptant à cette fin. La valeur d’échange d’une unité de compte d’une cryptomonnaie se développe au fur et à mesure qu’une communauté importante adopte cette cryptomonnaie et l’utilise pour des échanges de plus en plus en plus importants.

Selon David LATAPIE les cryptomonnaies sont une affaire non seulement sérieuse, mais également salutaire. Il nous narrera la genèse des cryptomonnaies, leur utilité et la motivation de leurs créateurs et de leur adopteurs précoces. Il décrira leur fonctionnement général, leurs avantages et leurs inconvénients, ainsi que les mesures palliatives à ces inconvénients. Il fera un rapide tour d’horizon en détaillant la plus connue t la plus capitalisée, Bitcoin. Il présentera également les applications non-financières, en terme de réduction des coûts, d’automatisation des tâches juridiques et d’internet des objets. Enfin il détaillera Monero, une nouvelle cryptomonnaie sur laquelle il travaille afin de neutraliser les défauts des cryptomonnaies précédentes et notamment Bitcoin. David LATAPIE accorde une grande importance à cette démarche pour que les hommes libres restent maîtres de leur destin.

Qu’est-ce qu’une monnaie ? Qu’est-ce qu’une cryptomonnaie ? Pourquoi introduire Monero ? C’est autour de ces questions que nous vous proposons de débattre le lundi 16 mars à 20h00 au café le Coup d’Etat, 164, rue Saint Honoré, 75001 Paris (M° Palais Royal) !

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On passwords

I historically preferred to avoid a software for password (what I call “dedicated software”), because you constantly run into situations like “no access to your machine”, “no battery on the phone”, “what if no internet”, “inconvenient”, “place your data in the hand of a party that can go bust”, etc.

But I’m starting to considering it.

My present password strategy, which I call “pattern-based”, is this: use a high entropy password (estimated 98 bit on http://rumkin.com/tools/password/passchk.php) with a part that is always the same (the high entropy part) and a part that can hinted by contextual information (and has low entropy). For instance, “!?.op.” plus the three last letters of the domain name (excluding the TLD).

I see three problems here:

  1. First, password-reuse. There is still a pattern. If I happen to enter my password on a site that gets hacked or is just malicious, the pattern can be identified. Of course, chances are low that the hacker bothers when he has so much other simpler password at its disposal.
  2. Second, no change of password. It is nigh impossible to periodically cycle through all the websites to change the password (a database would make it less difficult because I would not have to remember all the websites but it would still be very tedious, to the point it would simply not be done). And if I don’t spend days changing the password on all the websites in a row, I would then have to remember three or four different patterns.
  3. Exception handling. You will always find a website that doesn’t allow one of your character (same issue with the space in passphrases) or places an upper limit in characters (particularly annoying for passphrases). Those exceptions must be handled by hand. On the opposite, with dedicated software, there is basically no exception, since there is no rule.

As you can see, both approaches (pattern-based and dedicated software) have their limits.
A friend in IT security gave me this answer:

passwordsafe by Bruce Schneier is open source. Some features: hierarchical encrypted storage, password never displayed visibly, protected from dictionary attach, no disk swapping, encrypted in memory and more.
I have hundreds of passwords, all distinct, all unguessable and I don’t know any of them.

I’ll give it a try.

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The abandonment of control

This is worrisome:

  • What is a browser? – Don’t know
  • What is the difference between a browser and a search engine? – Don’t know
  • What is the difference between Google and a browser? – Don’t know
  • Do you use Internet? – No, I use Facebook

See by yourself:

But this is not the most concerning part. The most concerning part is that it is normal.

In the nineteenth century, every car owner was also a car pilot and an accomplished mechanics, as well as a fountain of knowledge on cars. Years later, the amount of knowledge fell so low that it became mandatory to pass an exam and to obtain a driving licence to merely drive a car (don’t even talk about fixing it, and this happened way before the so-called “electronic bloat”) – the first nationwide mandatory exam was in France, in 1899. Nowadays, most people only know the bare minimum about maneuvering a car (and almost nothing about fixing it) and the statistics of road accidents are daunting (even if they were worse in th 70’s, contrary to popular belief). In the future, cars will eschew the driver altogether (probably for the better when it comes to road safety) and we will eventually have a majority of autonomous cars (same for planes, by the way).

I expect the same to happen for computing. Increasing digital analphabetism, increasing assistance and ultimately, computers will do the job for you (remember Google’s vision? you won’t have to search, we will anticipate what you want). Who’s in charge? Most of the time, you won’t be in charge and you will be left with just enough of an illusion of control to be fine with it.

This is not paranoia or dystopia, this is the natural course of life. Spend as few energy as possible (this not always negative: increases in efficiency come out of the quest for least energy).

There will always be knowledgeable people in computing, as there will always be knowledgeable people in cars. We just have to abandon the idea that a sizeable part or our acquaintance will know how it works. And understand that power over computing will get more and more concentrated, due to the sheer lack of education. Could gamification change this? Not sure.

And the same will go for Monero, but frankly, if this is the price to pay for wider use, I’m happily willing to pay it.

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Try Bitcoin… for free

Services called “faucets” allow to get some part of bitcoin for free. They are given away for a variety of reasons.

If you want to try “this Bitcoin thing” without giving your bank credentials or buy them, this is a good way to start. Just be careful. Below a selection a faucet I selected as safe and worth their time.

First, you must have a bitcoin address. If you don’t have one, just create a bitcoin address on the most popular wallet, Blockchain.info. Don’t worry, no site can steal your Bitcoin if they are on this address (except if Blockchain.info gets hacked or goes rogue, of course – if this concerns you, create your own bitcoin wallet.

  • freebitco.in
    • pros: safe, decent amount (for a faucet), audible alert/reminder allows to just keep the tab open, earn more if you invite more
    • cons: You must fill a CAPTCHA every hour
    • trap: Don’t play the dice game, you will eventually lose (martingale). Don’t deposit your own bitcoins. Withdraw frequently, who knows what may happen… Relies on advertisements and possibly the captcha you solve are used for illicit activities
  • freedoge.co.in
    • pros: same as freebitco.in, but for Dogecoin
    • cons: same as freebitco.in, but for Dogecoin
    • trap: same as freebitco.in, but for Dogecoin
  • qoinpro.com
    • pros: safe, simple, nothing to do, earn more if you invite more
    • cons: very few bitcoin
    • trap: none

If you know some more, feel free to leave a comment. Also, remember: the point is not to “get rich”, it is to have enough bitcoin to start to be interested in the cryptocurrencies and the revolution behind it.

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Introduction progressive au transhumanisme… et au-delà

Version hypertexte

== Convergence NBIC ==
Niveau 1: NBIC
Niveau 2: Convergence (synergie, 1+1=3)

== Proche ==
The Eyeborg documentary
Real Humans
La Technomédecine
Quand les humains n'auront plus besoin de postuler

== Lointain ==
Nos enfants seront-ils d'une espèce différente ?
Face à la Singularité
Transhuman Space
Eclipse Phase
Accelerando
Orion's Arm

== Tangent ==
The Power of the blockchain
La Transition laborale
TVA, revenu de base, robotisation : la transition laborale
10 raisons d’adopter le revenu de base

Version texte brut

== Convergence NBIC ==
Niveau 1: NBIC
Niveau 2: Convergence (synergie, 1+1=3)

== Proche ==
The Eyeborg documentary        youtu.be/TW78wbN-WuU
Real Humans                    frwp.org/Real_Humans
La Technomédecine              youtu.be/ObzCCBmUEyo
Quand les humains n'auront     youtu.be/H6jz3uyrLRg
plus besoin de postuler

== Lointain ==
Nos enfants seront-ils         on.ted.com/Enriquez12
d'une espèce différente ?
Face à la Singularité          intelligenceexplosion.com/fr
Transhuman Space - tout        frwp.org/Transhuman_Space
Eclipse Phase                  enwp.org/Eclipse_Phase
Accelerando                    frwp.org/Accelerando
Orion's Arm                    orionsarm.com

== Tangent ==
The Power of the blockchain    plus.google.com/explore/powerofblockchain
La Transition laborale         youtu.be/cU3YZlAqiXw
TVA, revenu de base, robots :  wp.me/p1yZU8-1RT
la transition laborale
10 raisons d’adopter           bit.ly/revenudebase
le revenu de base

Version image

Source pour l’image (sera surement laid dans votre navigateur) :

Introduction progressive au transhumanisme... et au-delà

== Convergence NBIC ==
Niveau 1: NBIC
Niveau 2: Convergence (synergie, 1+1=3)

== Proche ==
The Eyeborg documentary youtu.be/TW78wbN-WuU biomécatronique documentaire EN
Real Humans frwp.org/Real_Humans robotique, lovotique, société série FR
La Technomédecine youtu.be/ObzCCBmUEyo médecine, société, géopolitique conférence FR
Quand les humains n'auront plus besoin de postuler youtu.be/H6jz3uyrLRg robotique, société documentaire FR

== Lointain ==
Nos enfants seront-ils d'une espèce différente ? on.ted.com/Enriquez12 biologie conférence FR
Face à la Singularité intelligenceexplosion.com/fr intelligence artificielle essai FR
Transhuman Space frwp.org/Transhuman_Space transhumanisme jeu de role EN
Eclipse Phase enwp.org/Eclipse_Phase posthumanisme jeu de role FR
Accelerando frwp.org/Accelerando singularitarisme roman EN
Orion's Arm orionsarm.com singularités multiples univers EN

== Tangent ==
The Power of the blockchain plus.google.com/explore/powerofblockchain finance, économie, société anthologie EN
La Transition laborale youtu.be/cU3YZlAqiXw robotique, informatique, société conférence FR
TVA, revenu de base, robotisation : la transition laborale wp.me/p1yZU8-1RT robotique, société article FR
10 raisons d’adopter le revenu de base bit.ly/revenudebase robotique, société article FR

English raw text version

== NBIC Convergence ==
Level 1: NBIC
Level 2: Convergence (synergy, 1+1=3)

== Near Future ==
The Eyeborg documentary        youtu.be/TW78wbN-WuU
Real Humans                    enwp.org/Real_Humans
Humans need Not Apply          youtu.be/7Pq-S557XQU

== Far Future ==
Will our kids be of            on.ted.com/Enriquez12
a different species?
Intelligence explosion         intelligenceexplosion.com/
Transhuman Space               enwp.org/Transhuman_Space
Eclipse Phase                  enwp.org/Eclipse_Phase
Accelerando                    enwp.org/Accelerando
Orion's Arm                    orionsarm.com

== Tangential ==
The Power of the blockchain    plus.google.com/explore/powerofblockchain

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