Today's Question:  What does your personal desk look like?        GIVE A SHOUT

SEARCH KEYWORD -- BASE64

  How does Base64 work

Base64 is a data encoding scheme used in safe data transfer such as HTTP and its extensions. Base64 encoding can conver arbitrary group of bytes into a sequence of readable ASCII characters. These converted characters can safely put in a HTTP header without causing any problem while the peers process the HTTP header. Base64 encoding was invented as part of the MIME content transfer encoding. It is similar to other encoding schemes such as Uuencode and BinHex but with higher efficiency....

   ALGORITHM,BASE64     2016-03-09 23:47:40

  HTML5 photo taking and uploading app implementation

Underthe support of HTML5 standard, Building Web App to take photos is now possible.I will elaborate on how to take photos using Web App, display them on the pageand upload them to the server. 1.     Videostream HTML5 TheMedia Capture API provides the programmable  access to video camera on phones, users canuse the getUserMedia() method to get the video stream provided by video camera.What we need to do is to add a HTML <video> tag and make the videostrea...

   HTML5,Photo taking,Media Capture API ,Implementation     2012-03-15 07:19:49

  The Ultimate GetElementsByClassName, Anno 2008

Two and a half years ago, I released the first version of getElementsByClassName. With how web browsers has evolved since, I thought I’d release a real ultimate version, dated 2008. Native Web Browser SupportSafari 3.1 has native getElmentsByClassName support, and upcoming Firefox 3 and Opera 9.5 will have it too. It only leaves out, you’ve guessed it, Internet Explorer.The Necessity Of This ScriptLiving in a world where Microsoft is halting every possible way t...

   JavaScript,geElementsByClassName,Cross browser compatible,Implementation     2011-11-26 02:46:20

  Load html content properly in iframe

When loading content in an ifrasme, there are normally two ways: loading with src or creating iframe dynamically and set content dynamically. In this post, we will talk about how to properly load content in a dynamically created iframe element, especially on how to fix some issue we faced while in Firefox. To create an iframe dynamically, we would normally use JavaScript and with below piece of cod: let iframe = document.createElement("ifrasme"); iframe.innerHTML = "this is some text"; document...

   IFRAME,HTML,BLANK,FIREFOX,FIX     2021-04-10 02:17:27

  Resolving error "SSL certificate problem: self signed certificate in certificate chain"

In a PHP application, cURL is frequently used to make connection to remote server to request some resource. It can be used to transfer data with different protocols such as HTTP, HTTPS, FTP etc. While using cURL in PHP, someone may get an error with message similar to "SSL certificate problem: self signed certificate in certificate chain". This may happen when cURL tries to make a SSL connection server and the server returns a server certificate which is self-signed and it's not trusted by the c...

   PHP,SSL,CURL,TWILIO     2016-06-26 07:17:23

  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 integrate with Sign in with Google

Google has a huge user base and hence it provides an authentication service for third party service to integrate with them so that people can sign in with Google in their services. Google also adopts OAuth 2 to provide this kind of Open ID connect service. This post will introduce how to integrate with sign in with Google functionality in your PHP website.  Create a client app on Google The first step you should follow is to create a Google app, you can follow the post here to create the p...

   PHP,GOOGLE API,OPEN API,SIGN IN WITH GOOGLE     2019-03-03 02:00:09

  Generate certificate from cert file in Java

A certificate is often used to prove the identity of a server. The certificate will contain information such as the subject and issuer of the certificate. It will also contain the validation date of the certificate. A certificate is often exported to an external cert file which is transferred over the internet. We will often see its use in SSL communication which provides secure communication between two entities. In this post, we will show how to read the data from an external certificate file ...

   PKCS12,CertificateFactory,Example,Java,X509     2015-06-08 06:47:05

  Screen recording in Windows 10

Have you ever wondered how to take screen recording easily on Windows? Normally you would think to download some software online and install it on your machine such as Camtasia. However, many of them are either non-free or uneasy to use. Fortunately, there is a built-in tool provided in Windows 10 which can be used to take simple screen recording plus audio recording. The tool is called the Game Bar which is primarily intended for gamers to take screenshots of their plays and achievements. Don't...

   WINDOWS 10,GAME BAR,SCREEN RECORDING     2018-03-06 11:42:07

  Simplify Cloud Data Security: A Deep Dive Into Protecting Sensitive Data in Java

Featuring encryption, anonymization, hashing, and access control Network security incidents occur now and then, mostly caused by data leakage. Data security has aroused widespread concern, and the community keeps working hard on approaches to simplify data security, especially in sensitive data protection. Sensitive data includes but is not limited to personally identifiable information (PII) like names, ID numbers, passport numbers, driver’s license numbers, contact information like addre...

   JAVA,SECURITY,ENCRYPTION,DECRYPTION,TOKENIZATION     2023-04-28 21:22:10

RECENT