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, 179👍, 1💬
Windows Security Tutorials - Herong's Tutorial Examples
This free book is a collection of tutorial notes written by the author while he was dealing with security issues with Microsoft Windows systems. Key topics include anti-virus tools, virus and trojan removal techniques, security issues with browser add-on applications. 2015-07-18, 213👍, 0💬
WSDL Tutorials - Herong's Tutorial Examples
This free book is a collection of notes and sample codes written by the author while he was learning WSDL himself. Topics include WSDL, Web Service, SOAP, service, end point, interface, operation, type. 2015-07-18, 212👍, 0💬
Introduction to Logical Operations
This section provides a quick introduction of logical operations supported by VBScript: logical negation - Not, conjunction - And, disjunction - Or, exclusion - Xor, equivalence - Eqv, implication - Imp. 2017-03-18, 211👍, 2💬
JSP Custom Tags
This chapter provides tutorial notes and example codes on JSP custom tags. Topics include what is custom tag; steps of creating and using custom tags; first custom tag, hy:hello. 2016-07-12, 211👍, 1💬
"openssl enc" Converting Keys from Binary to PEM
This section provides a tutorial example on how to convert a private and public key pair stored in binary PKCS#8 format into PEM (Privacy Enhanced Mail) format with the 'openssl enc' command. 2018-01-20, 210👍, 2💬
"OpenSSL" Generating CA's Private Key
This section provides a tutorial example on how to use OpenSSL to generate a RSA private key of 2048 bit long with OpenSSL. This key will be used as the CA's private key and must stored securely in a file with password protection. 2018-02-03, 208👍, 1💬
DOMBrowser.java - DOM Interface Java Example
This section provides a tutorial example on how to parse an XML file and print it back in a tree format using DOM interface in Java - JDK 1.8. 2017-02-22, 208👍, 1💬
soapUI 3.0.1 - Web Service Testing Tool
This chapter provides tutorial notes and example codes on soapUI 3.0.1. Topics include soapUI features; downloading and installing soapUI 3.0.1; validating and importing SOAP based WSDL documents; creating and submitting mock requests; creating and running mock Web services. 2016-03-11, 206👍, 0💬
PHP SOAP Extension Server Programs
This chapter provides notes and tutorials on PHP SOAP Extension server side functions, writing server and client programs using SOAP 1.1 and SOAP 1.2, writing WSDL document. 2017-05-19, 205👍, 2💬
"WinRAR" - RAR and ZIP File Compression Tool
This chapter provides an introduction of WinRAR. Topics include installing WinRAR 3.42, adding files and sub directories to RAR/ZIP files, extracting files from RAR/ZIP files, setting passwords to RAR files, setting Windows Explorer context menu for WinZip, running WinRAR in command line windows. 2016-02-20, 203👍, 0💬
Blowfish Decryption Algorithm
This section describes the Blowfish decryption algorithm, which is identical to the encryption algorithm step by step in the same order, only with the sub-keys applied in the reverse order. 2015-09-12, 203👍, 1💬
Open Files in Binary Mode
This chapter provides tutorial examples and notes about opening files in binary mode. Topics include using binmode() to open files in binary mode; Copy.pl - copying binary files; Bin2Hex.pl - converting binary data to hex numbers. 2017-06-26, 202👍, 1💬
Crypt::CBC Encryption with Salted Keys
A tutorial Perl example is provided to show how to use Crypt::CBC to perform encryption with a passphrase and a salt, which will be used to derive the secret key and the IV. 2015-12-20, 200👍, 1💬
Reciprocity of Time Dilation
This section introduces the reciprocity of time dilation. Elapsed time of a moving clock is slower when measured by a stationary observer; and elapsed time of a stationary clock is slower when measured by a moving observer. 2017-12-09, 197👍, 2💬
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, 196👍, 2💬
Garbage Collection Tests
This chapter provides tutorial notes and example codes on garbage collection. Topics include garbage collection test program - GCTest2.java; comparisons between HotSpot 1.7.0, HotSpot 1.6.0 and JRockit R28.2.7. 2015-08-16, 196👍, 1💬
Windows Tutorials - Herong's Tutorial Examples
This free book is a tutorial book for regular users of Windows systems. It is a collection of tutorial notes written by the author while he was learning and using Microsoft Windows systems. Key words include FTP, Network, Graphics, HijackThis, Internet Explorer, WinZIP, WinRAR, Process, Service, Spy... 2015-07-17, 195👍, 0💬
This section describes the DSA (Digital Signature Algorithm) algorithm, which consists of 2 parts: g...
This section provides a tutorial example on how to install OpenSSL on a Windows system.
This chapter provides tutorial notes and example codes on WSDL2Java. Topics include using the WSDL2J...
This section provides a list of supported character encodings supported in Java. The list is generat...
This free book is an excellent tutorial book for beginners. It is a collection of notes and sample c...