Herong's Tutorial Examples

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, 861👍, 3💬

💬 2019-07-02 Eleftheria Drosopoulou: Hello Herong, Nice blog! I am editor at Java Code Geeks (www.javacodegeeks.com). We have the JCG program (see www.javacodegeeks....

💬 2019-01-01 Yale: Thank you!

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Connect MetaMask to Local "geth" Node
This section describes how to connect MetaMask to the 'geth' on the local host. 2019-10-05, 334👍, 2💬

💬 2019-10-05 Herong: I am in the process of rebuild my local Ethereum node. Can anyone provide help to kbhar?

💬 2019-09-30 kbhar: I am not able to connect to metamask after selecting the localhost 8545 network. I am getting "something went wrong" error. Can ...

"OpenSSL" Viewing Certificates in DER and PEM
This section provides a tutorial example on how to use 'OpenSSL' to view certificates in DER and PEM formats generated by the 'keytool -exportcert' command. 2019-10-05, 37498👍, 7💬

💬 2019-10-05 Herong: Fatin, what are you getting from the output?

💬 2019-09-27 Fatin: Please help me, i cannot get it that way

💬 2017-05-27 Herong: Yes, asn1parse is a nice tool. I will add some examples later.

💬 2017-05-23 Herong: Poshak, do you need any help with your certificate?

💬 2017-05-23 Derek Callaway: openssl asn1parse is also useful for displaying certificate contents...

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Outdated: Accessing Oracle Server through Web Interface
This section describes how to access an Oracle Server through its Web interface. 2019-10-03, 118👍, 1💬

💬 2019-10-03 Zorba: Love it a lot

Creating Procedures with Multiple Queries
This section describes how to create a procedure with multiple queries. 2019-09-27, 3483👍, 2💬

💬 2019-09-27 shubham: very nice

💬 2016-01-12 svr: Really a great article

UTF-8 Encoding Algorithm
This section provides a tutorial example on how to write a programming algorithm to encode characters with UTF-8 encoding. 2019-09-27, 3711👍, 3💬

💬 2019-09-27 Andrew Dillon: This was very useful. It really helped clarify the explanation in the Unicode Specification. Thank you!

💬 2016-03-30 Herong: Deniz, you are welcome!

💬 2016-03-24 Deniz Aktas: Simple and clear, thanks a lot !

Digital Signature Algorithm and Sample Program
This chapter provides tutorial notes and example codes on digital signature. Topics include algorithm and steps of signing a document; algorithm and steps of verifying a signature; digital signature generation and verification sample programs; sample signatures of SHA1withRSA and SHA1withDSA algorit... 2019-09-24, 876👍, 3💬

💬 2019-09-24 Akash: Akash

💬 2016-12-15 vijay: thanks

UTF-16, UTF-16BE and UTF-16LE Encodings
This chapter provides notes and tutorial examples on UTF-16, UTF-16BE and UTF-16LE encodings. Topics including encoding and decoding logics of UTF-16, UTF-16BE and UTF-16LE encodings; introduction of surrogate pairs; explanation of the use of BOM (Byte Order Mark). 2019-09-24, 5005👍, 4💬

💬 2019-08-09 asas: Haga contacto con su administrador del sistema si desea obtener más información

💬 2017-04-06 kl: 21 53 93 68 87 65 20 00 20 00 20 00 20 00 20 00 20 00 20 00 20 00 20 00 20 00 20 00 20 00 31 00 30 00 31 00 32 00 30 00 30 00 30...

Microsoft JDBC Driver for SQL Server - sqljdbc42.jar
This chapter provides tutorial notes on sqljdbc42.jar, JDBC Driver 4.2 produced by Microsoft for SQL Server 2014. Topics include downloading and installing Microsoft JDBC Driver 4.2; loading sqljdbc42.jar; creating a connection to SQL Server with port number, instance name and database name; closing... 2019-09-21, 12079👍, 24💬

💬 2019-09-13 rohit: thanks

💬 2018-06-06 khui: thanks

💬 2018-01-07 jesse: thx

💬 2017-11-30 lebronjames: curry good

💬 2017-10-17 suku: hi

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Validating XML Documents with Assigned XSD
This section describes a tutorial example on how to validate an XML document with the assigned XML Schema file (XSD) using XMLPad. 2019-09-19, 125👍, 1💬

Request Differences between SOAP 1.1 and SOAP 1.2
This section describes differences between a SOAP 1.1 request and SOAP 1.2 request for GetSpeech Web service provided by xmlme.com. 2019-09-19, 20642👍, 4💬

💬 2017-04-06 Syed Mohammad: Very Nice Diffrence highlighter in brief

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. 2019-09-18, 3328👍, 7💬

💬 2019-06-24 abcd: It's a rainy night

💬 2017-01-20 anynomous: he ha ha

💬 2017-01-05 danish: that is great

Installing Adobe Flash Player Plugin for Chrome
This section provides a tutorial example on how to download and install Adobe Flash Player 13 for Chrome with Adobe Flash Player Installer on a Windows 7 system. 2019-09-18, 152👍, 2💬

Base64 Encoding Algorithm
This section describes the Base64 encoding algorithm with some simple encoding examples. 2019-09-18, 10806👍, 20💬

💬 2019-09-18 Anonymous: Nice:)

💬 2019-08-16 adarsh: good explanation:)

💬 2019-02-02 Herong: maher, you can decode it manually. For example, the first 4 bytes can be decoded to 3 bytes, 0x9d873d: base64: n, Y, c, 9 decima...

💬 2019-01-30 maher: how can i decode nYc9rsn50kvkUaZ i try many sites that decode base64 no result

💬 2018-01-12 Name: meaningful comments

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GetStringAsync() Method Example Program
A tutorial example is provided on how to use GetStringAsync() method in the System.Net.Http.HttpClient class to send a GET request in a child thread as am asynchronous operation. 2019-09-16, 331👍, 2💬

Checking FTP Server Log File
This section provides a tutorial example on how to check FTP server log file. 2019-09-15, 6703👍, 5💬

💬 2019-09-15 Herong: Steve, Yes. This is from IIS 5.1. I will update it, when I get a chance.

💬 2019-09-12 SteveC: IIS 5.1 was released on Windows XP. Tis information is obsolete (which is why the date has been removed from the #Date line). II...

💬 2018-04-28 Herong: Scott, the IIS settings.

💬 2018-04-27 Scott: if you look at setting...... what settings?

💬 2016-09-25 Humphrey Bogart: meaningful comments

Downloading and Editing WSDL Document
This section provides a tutorial example on how to download the WSDL document from the Web service provider. You can change port.address[@location] to a localhost URL to local testing. 2019-09-15, 25410👍, 15💬

💬 2019-09-15 Herong: Any more information about this Web service?

💬 2019-09-10 previsualizacion: http://200.54.27.12/wsGetPdf/service s/view?wsdl

💬 2019-08-23 kaushal: nice

💬 2019-08-09 Mahesh: perfect

💬 2017-12-18 maria de los angeles: thanks, :)

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Outdated: Downloading and Installing Android SDK R17
This section provides a tutorial example on how to download and install Android SDK (Software Development Kit) Revision 17 on Windows systems. 2019-09-13, 154👍, 2💬

💬 2019-09-13 Carlos: tnx

Differences between "Object" and "Array"
This section provides a quick description of similarities and differences of 'Array' and 'Object'. A tutorial example is provided on how to compare an 'Array' object to an 'Object' object. 2019-09-12, 693👍, 4💬

💬 2019-09-12 jagdish: test

Compiling Multiple Source Code Files Together
This section provides a tutorial example on how to compile multiple C# source code files together. 2019-09-10, 195👍, 1💬

💬 2019-09-10 Tamas: Thank you! It works!

XML Tools Plugin for Notepad++
This chapter provides notes and tutorial examples on XML Tools Plugin for Notepad++. Topics include downloading and installing Notepad++ and XML Tools Plugin; generating pretty print XML format; XSD validation; XSLT transformation. 2019-09-10, 134860👍, 66💬

💬 2019-09-10 xiaolu: Great tool

💬 2019-08-06 Took: Great

💬 2019-08-01 Thanh: nice

💬 2019-02-11 aaa: correcto...

💬 2019-02-07 Ralph Stålberg: Need to format xml to be able to read it

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Tutorial Book List
Tutorial Books: Android Tutorial Examples Bitcoin Tutorial Examples C# Tutorial Examples Cryptography Tutorials Data Encoding Tutorial EC Cryptography Tutorials Ethereum Tutorial Examples Flash Tutorial Examples Free Web Services GB2312 Character Set HTML Tutorial Examples Java Tutorial Examples Jav... 2019-09-07, 1172👍, 0💬

Java 8 GC Tutorials - Herong's Tutorial Examples
This book is a collection of tutorial notes and sample codes written by the author while he was learning JVM GC (Garbage Collection) processes. Topics include Java Garbage Collectors, STW (Stop-The-World), Serial Collector, Parallel Collector, Concurrent Collector, G1 Collector, GC Algorithms, Gener... 2019-09-07, 163👍, 1💬

💬 2019-09-07 Venmo: Very helpful. Thanks!

Calculate Double-SHA256 Hash with Python
This section describes how to calculate Double-SHA256 hash with Python. 2019-09-05, 144👍, 1💬

Decode Bitcoin Raw Transaction Format
This section describes how to decode a Bitcoin raw transaction format. 2019-09-02, 347👍, 2💬

💬 2019-09-02 qewr: 0100000001daf105fafc6e3e4f6ce2143b86 952ca8ee4d898415f2ec05349e41...

💬 2019-08-27 hi: 0100000002f64c603e2f9f4daf70c2f4252b 2dcdb07cc0192b7238bc9c3dacba...

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