EC Cryptography Tutorials - Herong's Tutorial Examples
This EC (Elliptic Curve) cryptography tutorial book is a collection of notes and sample codes written by the author while he was learning cryptography technologies himself. Topics include rule of chord and point addition on elliptic curves; Abelian groups with additive and multiplicative notations; ... 2019-07-06, 913👍, 3💬
Example Java Class Converted from a JSP Page
This section provides a tutorial example Java class converted by Tomcat 7 from the JSP page, Hello_Scripting.jsp. Scripting elements included in the JSP page are converted correctly. 2019-02-07, 2988👍, 2💬
c:out Action Tag
This section describes the c:out action tag in the JSTL Core library. c:out allows you to generate a dynamic data using an EL (Expression Language) expression in JSP pages. 2019-01-30, 107👍, 1💬
GetGeoIP - Get Country by IP Address
This chapter provides a quick introduction of the free Web service, GetGeoIP, returning the country information with a given IP address. Topics include usage description of GetGeoIP; request message sample; response message sample. 2019-01-29, 238👍, 1💬
1953 - Bai Niao Chao Feng (百鸟朝凤) - Hundreds Birds Worshipping The Phoenix
Bai Niao Chao Feng (百鸟朝凤) - Hundreds Birds Worshipping The Phoenix, Suona (唢呐) Solo, composed by Ren Tongxiang from folk tunes (任同祥). Originally performed by Ren Tongxiang (任同祥). 2019-01-28, 297👍, 2💬
GetCitiesByCountry - Usage Description
This section describes the free Web service GetCitiesByCountry provided by WebserviceX.NET. GetCitiesByCountry allows you to retrieve all cities for any given country or territory. 2019-01-26, 3174👍, 3💬
Validating ds:Signature with X.509 Certificate
This section provides a tutorial example on how the SOAP message receiver should validate the digital signatures included in the ds:Signature elements. Digital signatures should be decrypted using public keys included in X.509 certificates passed in the wsse:BinarySecurityToken element. 2019-01-21, 605👍, 5💬
French Characters in HTML Documents - ISO-8859-1 Encoding
This section provides a tutorial example on how enter and use French characters in HTML documents using Unicode ISO-8859-1 encoding. The HTML document should include a meta tag with charset=ISO-8859-1 and be stored in ANSI format. 2019-01-21, 1005👍, 3💬
Building Chinese Web Sites using PHP
It can be used as a tutorial guide for beginners. Topics include installing PHP and Tomcat; creating PHP pages; displaying pages in Chinese; saving Chinese characters to MySQL database; fetching Chinese characters from MySQL database. 2019-01-21, 3261👍, 6💬
Lock Types and Lock Levels
This section describes 2 types of locks: Read Lock (Shared Lock) and Write Lock (Exclusive Lock), and 3 levels of locks: Table Lock, Row Lock, and Column Lock. 2019-01-02, 2482👍, 2💬
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. 2019-01-01, 1061👍, 2💬
Java GC Tutorials - Herong's Tutorial Examples
This book is a collection of tutorial notes and sample codes written by the author while he was learning JVM GC (Garbage Collection) processes. Topics include Java Garbage Collectors, STW (Stop-The-World), Serial Collector, Parallel Collector, Concurrent Collector, G1 Collector, GC Algorithms, Gener... 2019-01-01, 1257👍, 1💬
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. 2018-12-28, 12064👍, 7💬
PHP Implementation of DES - mcrypt
This chapter provides tutorial examples and notes about PHP implementation of DES. Topics include introduction of mcrypt library; mcrypt encryption functions; DES encryption and decryption test program and test result. 2018-12-22, 1956👍, 4💬
Using java.net.HttpURLConnection to Send SOAP Messages
This section describes steps to follow if you want to use the java.net.HttpURLConnection class to send out a SOAP XML message. 2018-12-21, 35142👍, 13💬
The Constancy of the Speed of Light
This section provides a thought experiment to help understanding the second assumption of the special theory of relativity: The constancy of the speed of light. 2018-12-18, 218👍, 2💬
This section describes how to create tables with CLOB columns in Oracle server.
This section provides a quick introduction of the SecretKeySpec class and the KeySpec interface. The...
This web site provides a collection of about 40 free tutorial books on programming languages, Web ap...
This section describes how to download and install MySQL Connector/J (JDBC driver).
This section provides a tutorial example on how to see the list of trusted root CA (PKI Authorities)...