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, 253👍, 1💬
Introduction of DSA (Digital Signature Algorithm)
This chapter provides tutorial notes and example codes on DSA (Digital Signature Algorithm). Topics include introduction of DSA; illustration of DSA key generation, message signing and signature verification; proof of Digital Signature Algorithm. 2018-04-07, 1974👍, 11💬
"adb logcat" Command Options and Log Buffers
This section describes the 'adb logcat' command options to dump and manage log buffers: main, events, and radio. An example is given to dump logs into a set of rotated log files. 2017-07-11, 1924👍, 2💬
Removing IE Addon "Windows Live ID Sign-in Helper"
This section provides a tutorial example on how to disable and remove 'Windows Live ID Sign-in Helper' addon from Internet Explorer. 2016-05-04, 1924👍, 1💬
Subkeys of 3DES Encryption
Hi Doc, I have subkeys recovered through DPA. Can 3DES.c be modified to accept these subkeys as inputs for a cryptographic operation? Alternatively, can the main 3DES key be reverse generated from the subkeys? Thanks. firstname.lastname@example.org 2015-07-23, 1898👍, 1💬
Examples of Unicode Characters
This chapter provides notes and tutorial examples on the Unicode character set. Topics including introduction of Unicode standard, example characters, history of releases, blocks of code points. 2017-01-20, 1895👍, 5💬
Introduction of HTTPS (Hypertext Transfer Protocol Secure)
This chapter provides a quick introduction of HTTPS (Hypertext Transfer Protocol Secure). Topics include what is HTTPS; Web server authentication; communication data encryption. 2017-11-15, 1878👍, 3💬
"aapt" - Android Asset Packaging Tool
This section describes 'aapt', the Android Asset Packaging Tool, which can be used to list, add and remove files in an APK file, package resources, crunching PNG files, etc. 2015-11-16, 1860👍, 1💬
How come the Chinese calendar seems off by one day?
http://herongyang.com/2016/ - the printable calendar seems off by one day for the 2nd lunar month in 2016. Should start on March 9th, but yours starts on March 8th? Which version is giving the wrong date? I have checked all printable versions and they all show that the 2nd lunar month starts on Marc... 2016-03-10, 1827👍, 0💬
Using Visual Basic with Microsoft Access
This section provides tutorial example on how to add a Visual Basic code in Microsoft Access database to be executed as a macro on database tables. 2016-12-12, 1816👍, 5💬
Installing Adobe Reader APK File
This section provides a tutorial example on how to install the Adobe Reader APK file to the Android emulator using the 'adb' tool provided in the SDK package. Adobe Reader runs ok on the emulator. But it failed to show PDF files in the /sdcard/Download folder. 2016-10-02, 1749👍, 1💬
application/x-www-form-urlencoded Encoding in Java
This section provides a tutorial example on how to use Java URLEncoder class to perform application/x-www-form-urlenco dedencoding and decoding. 2017-03-31, 1707👍, 2💬
SocketRequestResponse.java - Socket Client Testing Program
This section provides a tutorial example on how to write a Java program using socket interface to send a request and receive a response in binary mode. 2015-08-01, 1703👍, 2💬
This section describes 'adb push' and 'adb pull' commands, which allows you to copy files to and fro...
This chapter provides tutorial notes on the JDBC-ODBC Bridge driver produced by Sun and DataDirect. ...
This chapter provides tutorial notes on sqljdbc42.jar, JDBC Driver 4.2 produced by Microsoft for SQL...
This section describes how to connect to a SQL Server 2005 through DSN with JDBC-ODBC Bridge.
This chapter provides notes and tutorial examples on XML Tools Plugin for Notepad++. Topics include ...