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  Crash your Chrome with %%30%30

Have you ever wondered a simple string can crash one of the most sophisticated designed web browsers -- Chrome? There is a finding from Andris Atteka who found that a null string "%%30%30" appended to an URL can crash Chrome. For example, if you have below URL in your browser address bar or you mouse over below URL, Chrome will crash: http://www.pixelstech.net/%%30%30 When the browser crashed, it may show : Or on Windows, you will see : This bug has been reported to Google at Is...

   CRASH,SECURITY,CHROME,GOOGLE     2015-09-20 08:24:16

  A Chinese Programmer Accused of Circumventing Great Firewall Faces Confiscation of RMB 1.05 Million

Recently, a programmer posted an article on Weibo claiming that he was working for an overseas company while accessing the international internet. He was subsequently accused by the Shuangqiao Public Security Sub-bureau in Chengde, Hebei of "illegally establishing and using non-official channels for international networking" and received an administrative penalty of a fine of RMB 200 and the confiscation of "illegal gains" totaling RMB 1.05 million. This is the most severe punishment reported s...

   GITHUB,CHINESE     2023-09-25 07:57:58

  Convert JKS to BKS using keytool

There are lots of questions(question 1, question 2) on Stackoverflow about how to convert JKS keystore to BKS keystore(a keystore format provided by BouncyCastle) using Java keytool.  The reason why this conversion gets lots of questions is that BKS is not a keystore format supported by Java SE, it's a third party keystore format. To convert JSK to BKS, the BKS provider has to be downloaded first. And a few more options needs to be added when running the keytool command. The typical co...

   JKS,BKS,KEYTOOL,JAVA,SECURITY     2016-07-14 03:49:52

  Ways to undo wrong Git operations

While using Git to version code, programmers would inevitably perform some invalid operations which are not expected. Sometimes it's difficult to deal with this kind of awkward situations. If the programmer chooses to undo the operation, the programmer needs to bear the risk of deleting something which is not supposed to be deleted if the undo is done improperly. If the programmer leaves it as is, the file needs to be updated again manually with a new commit. In this post, we will try to pr...

   GIT,GIT COMMIT,GIT RESET     2018-07-07 03:28:21

  Capture screenshot of dropdown menu

As a IT professional, we often need to capture screenshot of what we are working on to give proof of what we are doing and why we do it. The screenshot will provide a good sense to other people. You may be familiar with taking screenshot with different tools such as snagit, snipping tool or the Windows PrtSc button. But do you know how to take a screenshot of a dropdown menu? Here we show you how to capture screeenshot of dropdown menu with the snipping tool provided since Windows 7. Below are t...

   Widnows,Screenshot,Dropdown menu,Capture     2014-11-20 06:20:20

  YouTube video player control bar becomes transparent

YouTube has made an update on its video player control bar and made it general available to the public now. The update is to make the video player control bar transparent and float on top of the videos being played. There are no functional changes about this control bar.  The original control bar is black but not transparent. After the update, the control bar looks like: YouTube started to test this new change back in April 2015. At that time, it was tested in a small scale and only a sma...

   YouTube,Video Player,HTML 5, Transparent     2015-08-04 05:14:42

  Different types of keystore in Java -- Overview

Keystore is a storage facility to store cryptographic keys and certificates. They are most frequently used in SSL communications to prove the identity of servers and clients. A keystore can be a file or a hardware device. Three are three kinds of entries can be stored in a keystore depending on the types of keystores. The three types of entries are: PrivateKey : This is a type of keys which are used in asymmetric cryptography. It is usually protected with password because of its sensitivity. It ...

   JAVA,KEYSTORE,OVERVIEW,JKS,PKCS12,JCEKS,PKCS11,DKS,BKS     2014-08-18 02:09:54

  Different types of keystore in Java -- JCEKS

JCEKS stands for Java Cryptography Extension KeyStore and it is an alternative keystore format for the Java platform. Storing keys in a KeyStore can be a measure to prevent your encryption keys from being exposed. Java KeyStores securely contain individual certificates and keys that can be referenced by an alias for use in a Java program. The process of storing and loading different entries in JCEKS is similar to what JKS does. So please refer to the article Different types of keystore in Java -...

   Java,KeyStore,JCEKS,Tutorial     2015-01-05 00:30:56

  Alibaba founder Jack Ma sets up a new company

On November 24th, according to TianYanCha(A Chinese website to check company registration information), Hangzhou Majia Kitchen Food Co., Ltd. was established on November 22nd. The legal representative is PAU JASON JOHN, and the registered capital is 10 million RMB. The ownership information shows that the company is wholly owned by Hangzhou Dajingtou Er Shi Er Hao Cultural Art Co., Ltd., of which Alibaba founder Jack Ma holds a 99.9% stake. The business scope of this new company includes food ...

   JACK MA,ALIBABA,FOOD     2023-11-24 04:19:11

  git reset vs git revert

When maintaining code using version control systems such as git, it is unavoidable that we need to rollback some wrong commits either due to bugs or temp code revert. In this case, rookie developers would be very nervous because they may get lost on what they should do to rollback their changes without affecting others, but to veteran developers, this is their routine work and they can show you different ways of doing that. In this post, we will introduce two major ones used frequently by develo...

   GIT,GIT RESET,GIT REVERT     2019-02-02 08:26:39

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