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  Is 99.8% Secure Secure?

A group of researchers (Arjen Lenstra and collaborators  from EPFL Lausanne and James Hughes from Palo Alto) published a study, Ron was wrong Whit is right, of new vulnerabilities of cryptosystems. The New York Times picked up the story. Although Lenstra et al discuss several cryptosystems, their results are particularly relevant to those based on RSA. The title mirrors their conviction that cryptosystems based on a single random element have fewe...

   Security,Percentage,Security index     2012-02-27 04:48:06

  The problem isn’t you. The problem is the problem.

A friendly reminder: The problem isn’t you. The problem is the problem. –Steven Pressfield Some stuff is just hard. We start thinking we messed up. That it’s an issue with us. But it’s not. The work is hard and the problem is hard. You need to solve the problem, not fix yourself. The quote above is from Steven Pressfield’s incredible Do the Work. The audiobook (that’s a store link) is about 90 minutes long, so it fits in a s...

   Business,Problem,Strategy     2011-12-07 08:37:29

  4 ways to obtain access token in OAuth 2.0

OAuth 2.0 is an authorization mechanism, it's ,mainly used for issuing access token. There are 4 ways to obtain access token as per RFC 6749. Authorization code Implicit Password Client credentials The third party application must obtain a client id and client secret from the target service before obtaining access token no matter which method to use. This is to prevent token to be used maliciously. Authorization code With this method, the third party application must first get an authorization...

   OAUTH2,ACCESS TOKEN,REFRESH TOKEN     2019-06-29 07:12:03

  What should video website do besides buying copyright?

Several major video sites in China seem to be designed by the same team, they look the same from the main interface to advertising scheme. The question is whether video sites really do not need to improve their products and user experience in addition to smashing the money to buy the copyright to attract users, is there no other choice? After reading this article, perhaps we can somehow have different views.The Web 2.0 era's video siteIn Web 1.0 era, the main way for users to obtain information...

   Video site, Copyright,User experience     2013-03-06 03:15:39

  Password-less login

Most websites need user login in order to provide personalized content to visitors. The usual way is to request user to register an user account. Actually, this is not so appealing since if we need to remember one password for each website, it's troublesome, while for developers, it's their responsibility to protect password, once password is leaked, then it's a big headache to a website's business and reputation. So long time ago people started thinking about password-less login, this is a big ...

   Password-lesslogin,Authentication     2012-11-05 12:29:55

  Pagination or continuous scrolling? It's a question

No matter in web page or mobile applications, information often can not be displayed on one page all alone, there needs some interactive modes which can expand page information: Pagination and Continuous Scrolling are very common interactive modes. Every day we may see them, they are so common that we do not even feel their presence, when browsing to the bottom of the page, we will see it. But it's difficult to choose which mode to use in design. Here we have a discussion on these two modes. Pag...

   Pagination,Continuous scrolling,Design     2012-09-12 19:55:51

  Android Hardware Buttons are not broken, let me tell you why

This post is written as a reaction on Christoffer Du Rietz’s article The Android Hardware-Buttons Are Broken. In his article Christoffer explains how the Android back button shows inconsistent behavior like doing different actions when it is used on the same screen.In the following article I will try to explain that this behavior is not broken. Instead it is exactly what the Android developers had in mind while designing the back button behavior.The way the back button is broken according...

   Android,Hardware,Button,Protect     2011-11-03 13:38:21

  Shell script common interview questions

Shell script is frequently used when monitoring system status on Linux. It's not an easy task to write shell script but it's a very important skill for developers and system administrators to ease work and automate common tasks. This post will share some common interview questions about shell script. 1. Get random characters(8 characters) Method 1 # echo $RANDOM |md5sum |cut -c 1-8 471b94f2 Method 2 # openssl rand -base64 4 vg3BEg== Method 3 # cat /proc/sys/kernel/random/uuid |cut -c 1-8 ed...

   LINUX,INTERVIEW,SHELL SCRIPT     2018-09-28 10:46:00

  PHP to get access token for Twitter app

Previously we wrote an article about getting access token for Facebook app--PHP to get access token for Facebook app. Today we will introduce how to get access token for Twitter app using PHP. Since now Twitter is also using OAuth 2.0 to allow some web apps to access some users information on behalf of one user. They provided some APIs for developers to easily get them integrated with their own websites. The first step to get all these done is how to get the access token, the access token seems ...

   Twitter,OAuth,access token,PHP     2013-03-03 03:49:26

  Mozilla releases a web identity system : Persona

Now almost every website requires the user to register, there are many benefits of registration for a website, such as retaining users, accommodating discussions, providing customized content and so on.But there is too much trouble if each site requires registration, right?Of course, users can also have their own way, for those less important sites, for example, using a unified user name, password and email so that you only need to remember one account. Then, we also see some advanced methods em...

   Mozilla,Persona,Security,ID     2012-09-28 12:02:25

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