Cryptography Tutorials - Herong's Tutorial Examples
This cryptography tutorial book is a collection of notes and sample codes written by the author while he was learning cryptography technologies himself. Topics include AES, blowfish, certificate, cipher, decryption, DES, digest, encryption, keytool, MD5, OpenSSL, PEM, PKCS#8, PKCS#12, private key, p... 2017-03-02, 13100👍, 2💬
META-INF Files - Digests, Signature and Certificate
This section describes META-INF files in an .apk package file: MANIFEST.MF - manifest file, CERT.SF - signature file and CERT.RSA - the real signature file with certificate. 2015-09-04, 4189👍, 2💬
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. 2017-03-30, 4174👍, 3💬
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. 2015-11-03, 3965👍, 1💬
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, 3945👍, 1💬
Downloading and Installing JDK 1.7.0 on Windows
This section provides a tutorial example on how to download and install JDK 1.7.0 (Java SE 7) on a Windows XP system. A simple Java program was entered, compiled, and executed with the new JDK installation. 2017-01-02, 3920👍, 3💬
JDBC Tutorials - Herong's Tutorial Examples
This JDBC tutorial book is a collection of notes and sample codes written by the author while he was learning JDBC technology himself. It can be used as a tutorial guide for beginners. Topics include Java, Database, JDBC, Driver, ODBC, Connection, DataSource, SQL, ResultSet, Metadata, Derby, MySQL, ... 2015-12-15, 3904👍, 9💬
Using openConnection() Method in java.net.URL Class
This section provides a tutorial example on how to use the openConnection() method in the java.net.URL class to perform a GET method on an HTTPS server. Java Secure Socket Extension (JSSE) works quietly behind the java.net.URL class to provide HTTPS support. 2015-08-05, 3831👍, 2💬
Java Tools Tutorials - Herong's Tutorial Notes
This free book is an excellent tutorial book for beginners. It is a collection of notes and sample codes written by the author while he was learning Java tools himself. Topics include java, javac, jar, jdb, jar, javap, keytool, jconsole, jps, jstatd, jstat, jinfo, jmap, jhat, jstack. 2016-01-12, 3810👍, 1💬
HttpsClient.java - HTTPS Client Test Program
This section provides a tutorial example on how to write a HTTPS client test program, HttpsClient.java. It sends a simple HTTP request page using the HTTPS protocol. 2015-11-20, 3789👍, 6💬
java.util.Locale - Localization and Internationalization
This section provides a tutorial example on how to use java.util.Locale class to verify the default locale and list all supported locales. A locale is an identification of a combination of human language and country. 2016-12-19, 3698👍, 3💬
GB2312 Tutorials - Herong's Tutorial Examples
This free book contains Herong's notes and tutorial examples on Chinese GB2312 character set. It provides a mapping table of all GB2312 characters, native codes, corresponding Unicode codes and UTF8 codes. The Java program source code that produces the mapping table is also included. Topics include ... 2016-07-14, 3614👍, 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. 2015-10-01, 3526👍, 2💬
What Is SHA1 Message Digest Algorithm?
This section describes what is SHA1 (Secure Hash Algorithm 1) - a message digest algorithm which takes as input a message of arbitrary length and produces as output a 160-bit 'fingerprint'. 2016-01-18, 3511👍, 4💬
"bad decrypt:./crypto/evp/evp_enc.c:461" Error
This section provides a tutorial example on why OpenSSL 'pkcs12' failed with 'bad decrypt:./crypto/evp/evp_enc.c :461'error. The root cause is the key password different than file password. 2015-09-10, 3355👍, 1💬
Table of Contents
This free book is a collection of notes and sample codes written by the author while he was learning Flash. Topics include ActionScript, ActiveX, classid, Flash, FFmpeg, OBJECT, Player, Plugin, Shockwave, SWF, SWFTools, Web. 2015-07-15, 3350👍, 1💬
This section describes XML Tools Plugin, which provides a small set of useful tools for editing XML ...
This section describes 'adb install' and 'adb uninstall' commands that allows you to install an appl...
This section provides a tutorial example on how to use 'Property Let/Set/Get' procedure to define pu...
This section describes 'adb push' and 'adb pull' commands, which allows you to copy files to and fro...
This section describes a tutorial on how to play DAT files directly with Windows Media Player.