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, 575👍, 3💬
GROUP BY Clause of a SELECT Statement
This section provides tutorial examples on how to use the GROUP BY clause to aggregate orginal rows of the base table into group rows in a SELECT statement. 2015-09-27, 843👍, 1💬
What Is LWP::UserAgent?
This section describes what is LWP::UserAgent - a Perl class that helps you to prepare a HTTP request, send it to a Web server, then receive the HTTP response from the Web server. 2015-09-25, 169👍, 1💬
Introduction of VBScript - Visual Basic Scripting Edition
This chapter provides a quick introduction on VBScript language. Topics include what is VBScript; what are VBScript host environments; running VBScript codes within Internet Explorer (IE), Internet Information Services (IIS), and Windows Script Host (WSH). 2015-09-20, 148👍, 1💬
Unicode Tutorials - Herong's Tutorial Examples
This free Unicode tutorial book is a collection of notes and sample codes written by the author while he was learning Unicode himself, an ideal tutorial guide for beginners. Topics include ASCII, BMP, character set, encoding, decoding, GB, GB18030, GB2312, GBK, ISO-8859, Java, JDK, JIS, Surrogate, U... 2015-09-14, 303👍, 1💬
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, 213👍, 1💬
Oracle Express Edition Installation on Windows
This chapter provides tutorial notes on Oracle Express Edition installation on Windows systems. Topics include downloading, installing and starting Oracle Database 10g Express Edition; access Oracle server through its Web interface; creating Oracle login user. 2015-09-11, 156👍, 1💬
"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, 5557👍, 1💬
Samsung USB Driver for Mobile Phones
This section provides a tutorial example on how to download and install Samsung USB Driver for Mobile Phones, which is needed to run Samsung Galaxy Tab 3 mini tablet in debug mode. 2015-09-09, 1132👍, 1💬
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, 5381👍, 2💬
ActivityLog - Application to Create Log File
This section provides a tutorial example on how to create application, ActivityLog, to create a log file to monitor activity lifecycle using the android.content.Context.openFi leOutput()method. 2015-09-01, 283👍, 1💬
Video/Audio Stream Concatenation Order
This section provides a tutorial example of concatenation error message when using the 'concat' ffmpeg filter with incorrect video and audio stream order. 2015-08-23, 748👍, 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, 201👍, 1💬
This section provides a tutorial example on how to turn on Windows Defender for real-time protection...
This free book is an excellent tutorial book for beginners. It is a collection of notes and sample c...
This chapter provides tutorial notes on using the JDBC-ODBC Bridge driver with MS Access database. T...
This section provides a quick introduction of Web server log files with examples of IIS and Apache s...
This section provides a tutorial example on how the SOAP message receiver should validate the passwo...