Ethereum Tutorials - Herong's Tutorial Notes
This free book is a collection of tutorials and notes on Ethereum and blockchain. Topics include Blockchain, Ethereum, Cryptocurrency, Mining, MetaMask, Wallet. 2018-03-11, 198👍, 1💬
Introduction of HTTPS (Hypertext Transfer Protocol Secure)
This chapter provides a quick introduction of HTTPS (Hypertext Transfer Protocol Secure). Topics include what is HTTPS; Web server authentication; communication data encryption. 2017-11-15, 1819👍, 3💬
Compilation and Execution Process of C Programs
This section describes steps of the compilation and execution process of C programs: preprocessing, compilation, assembly, linking and loading. 2017-11-14, 48494👍, 16💬
How Secure Is RSA Algorithm?
This section discusses the security of RSA public key encryption algorithm. RSA private key is not 100% secure. But if the private key uses larger value of n = p*q, it will take a very long time to crack the private key. 2017-11-10, 364👍, 2💬
"base64Binary" Datatype Values and Representations
This section describes the built-in primitive datatype, 'base64Binary' that represents binary data represented in Base64 encoding. Whitespaces are allowed and removed. 2017-11-08, 4762👍, 3💬
Building Your Own Web Browser
This section provides a tutorial example on how to use the saveWebArchive() method to save Web page content in WebView to Web archive files in the application's files folder. 2017-11-05, 432👍, 2💬
What Is DSA (Digital Signature Algorithm)?
This section describes the DSA (Digital Signature Algorithm) algorithm, which consists of 2 parts: generation of a pair of public key and private key; generation and verification of digital signature. 2017-10-29, 22219👍, 14💬
HelloServerWsdl.php - SOAP 1.2 Server Application in WSDL Mode
This section describes a tutorial example of a complete SOAP application with both server and client programs using SOAP 1.2 in WSDL mode. 2017-10-26, 8127👍, 11💬
SHA1 Message Digest Algorithm Overview
This section describes the SHA1 algorithm - a 6-step process of padding of '1000...', appending message length, preparing 80 process functions, preparing 80 constants, preparing 5 word buffers, processing input in 512 blocks. 2017-10-26, 10005👍, 6💬
Using SHA1 Message Digest in Java
This section provides a tutorial example on how to use SHA1 message digest algorithm in Java. The JDK JCE package offers the SHA1 algorithm through a generic message digest class, javax.security.MessageDigest. 2017-10-24, 12639👍, 7💬
Running Perl Scripts on Linux Systems
This section provides a tutorial example on how to run Perl scripts on Linux systems. To make a Perl script file executable, you need to add '#!/usr/bin/perl' to the beginning of the script. 2017-10-24, 13158👍, 15💬
XML Tutorials - Herong's Tutorial Examples
This free XML tutorial book is a collection of notes and sample codes written by the author while he was learning XML himself, an ideal tutorial guide for beginners. Topics include DOM, DTD, J2SDK, Java, SAX, Syntax, Templates, XML, XPath, XSD, XSL, XSLT, XSL-FO. 2017-10-15, 5106👍, 2💬
DES Algorithm Java Implementation
This chapter provides tutorial examples and notes about DES algorithm implementation in Java language. Topics include an example Java implementation of DES encryption and decryption algorithm; test cases of single block cleartext and ciphertext. 2017-10-15, 5655👍, 15💬
JSP Document - JSP Page in XML Format
This section describes the syntax of a JSP Document, which is a JSP page written in XML format. Tomcat 7 server can process both JSP Page format and JSP Document format. 2017-10-10, 104👍, 1💬
Meter Based on Earth's Meridian
This section introduces an old definition of 'meter' which uses the Paris meridian line. A 'meter' is about one ten-millionth of the length of a quadrant of the Paris meridian. 2017-10-08, 199👍, 2💬
This section provides a tutorial example on how to export certificates in DER and PEM format using t...
This section describes how to insert new data rows into MS Access database through the JDBC-ODBC dri...
This section provides a tutorial Java program, CipherDES.java - A Java Implementation of DES encrypt...
This section provides a quick description of the Services Console and a tutorial example on how to l...
This section provides a tutorial example on how to install OpenSSL on a Windows system.