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, 768👍, 3💬
File Handles and Data Input/Output
This chapter provides tutorial examples and notes about file handles and data input or output. Topics include using open() function to open file handles; using print() to output data; using to input data. 2016-02-19, 280👍, 2💬
Converting Perl Script to Executable Binary
This chapter provides tutorial examples and notes about converting Perl script files to executable binary files. Topics include Perl script conversion tools: PerlApp and Perl2Exe; installing Perl Dev Kit with PerlApp, running PerlApp to convert DirGrep.pl to DirGrep.exe. 2016-02-18, 1384👍, 2💬
Bitwise Operations on "byte" Values
This section describes 4 types of bitwise operations, 'And', 'Or', 'Exclusive Or', and 'Complement' that applies on 'byte' values indirectly through 'int' values. 2016-02-17, 1246👍, 1💬
opendir() - Open Directory to Read File Names
This section describes Perl built-in functions, opendir() and readdir(), to open a file directory and read its file names and sub-directories. 2016-02-15, 303👍, 1💬
"choose" - The If...Else Element
This section describes the 'choose' element, which is used in the content of a 'template' element. The 'choose' element is a conditional statement that be used to put different output contents under different logical conditions. 2016-02-12, 692👍, 0💬
Accessing File System from JSP Pages
This section provides a tutorial example on how to access the file system from JSP pages using 3 different reference points: Current Directory, Physical Root Directory, and Virtual Root Directory. 2016-02-09, 113👍, 1💬
PHP SOAP Extension in PHP 5.3.1
This chapter provides tutorial notes and example codes on SOAP Extension in PHP 5.3.1. Topics include downloading and installing PHP 5.3.1; configuring SOAP Extension; reviewing SoapClient class and methods; calling RPC method based and XML document based Web services; rpc/encoded style requiring en... 2016-02-08, 120👍, 1💬
What Is SOAP?
This section provides a quick summary of SOAP protocol. 2016-02-07, 275👍, 0💬
Converting KeyStore Files to PKCS12 Files
This section provides a tutorial example on how to convert a KeyStore file to a PKCS12 file, because Windows 'Internet Options' can import keys and certificates from PKCS12, but not from KeyStore file. 2016-02-07, 1471👍, 2💬
PKI Tutorials - Herong's Tutorial Examples
This PKI (Public Key Infrastructure) tutorial book is a collection of notes and sample codes written by the author while he was learning PKI technologies himself. Topics include CA, Certificate, Crypt::SSLeay, C#, Digital Signature, Firefox, HTTPS, IE, Java, JSSE, KeyStore, keytool, MMC, .NET, OpenS... 2016-02-07, 7227👍, 1💬
Passing Arrays as Arguments
This section provides a tutorial example on how to pass an array as an arguments by reference to reverse positions of all elements in an array given as the argument. 2016-02-01, 3988👍, 0💬
This section provides a tutorial example on how to export certificates in DER and PEM format using t...
This section provides a tutorial example on how to use the getSelection() method to know which butto...
This section describes the SHA1 algorithm - a 6-step process of padding of '1000...', appending mess...
This section provides a tutorial example on how to a simple Java Swing program. SwingHello.java is m...
This section describes how to connect to a DSN (Data Source Name) with JDBC-ODBC Bridge.