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; ... 2019-01-01, 273👍, 1💬
Drawing Graphics - Using paint() on Frame
This section provides a tutorial example on how to override the paint() method in the javax.swing.JFrame class to draw graphics (a rectangle) on the frame window. This solution is not recommended. 2018-11-04, 3657👍, 3💬
What Is DER (Distinguished Encoding Rules) Encoding?
This section describes the DER (Distinguished Encoding Rules) - A binary format of encoding a data value of any data types including nested data structures. 2018-10-29, 8036👍, 4💬
Converting Secret Keys to and from Byte Arrays
This section provides a quick introduction of the SecretKeySpec class and the KeySpec interface. They can be used to convert secret keys into byte arrays to store them in external files. 2018-10-20, 6407👍, 3💬
GetCountries - Usage Description
This section describes the free Web service GetCountries provided by WebserviceX.NET. GetCountries allows you to retrieve names of all countries and territories in the world. 2018-10-20, 704👍, 4💬
Introduction to DES Algorithm
This chapter provides tutorial examples and notes about DES (Data Encryption Standard) algorithm. Topics include description of block cipher, DES encryption algorithm, Round Keys Generation, DES decryption algorithm. 2018-10-18, 390👍, 4💬
Including VBScript Codes with HTML "script" Tags
This section provides a quick description of how to include VBScript codes into HTML documents with 'script' tags. A tutorial example is provided on calling a function defined in the 'head' tag. 2018-10-11, 371👍, 3💬
Using "adb logcat" Command for Debugging
This chapter provides tutorial notes on the 'adb logcat' command. Topics include using 'adb logcat' command options and arguments; viewing log buffers: main, events, and radio; creating rotated log files; control log format as 'brief' or 'long'; filtering out log entries by priority and process tag;... 2018-10-11, 1312👍, 1💬
Outdated: IE 8 Displaying Certificate Error Page
This section provides a tutorial example showing that IE 8 fails to validate an HTTPS server certificate and displays a certificate error page. 2018-10-06, 163👍, 2💬
Passing Values between JSP Pages
This section provides a tutorial example on how to use different ways to pass values between JSP pages: putting values in 'session' or 'application' objects, or putting values at the end of redirect URL. 2018-09-28, 769👍, 4💬
'jstat -gcutil' - Garbage Collection Statistics
This section provides a tutorial example on how to use the 'jstat -gcutil' command to get garbage collection statistics against a specified JVM process ID. 2018-09-22, 413👍, 2💬
Opening UTF-16LE Text Files
This section provides a tutorial example on how to open a UTF-16LE text file with Nodepad correctly by selecting the Unicode encoding option on the open file dialog box. 2018-09-09, 911👍, 3💬
HTTPS Communication Data Encryption
This section describes the HTTPS communication data encryption process - Browser generates an encryption key, encrypts it using server public key and sends it to the server; Browser encrypts data with the encryption key; Server encrypts return data with the same encryption key. 2018-09-06, 166👍, 2💬
This cryptography tutorial book is a collection of notes and sample codes written by the author whil...
This section describes what is PKCS5Padding - a schema to pad cleartext to be multiples of 8-byte bl...
This chapter provides tutorial examples and notes on runtime error handling. Topics include the defa...
This section provides a tutorial example on how to use 'OpenSSL' to view certificates in DER and PEM...
This section provides a tutorial example on how to install OpenSSL on a Windows system.