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How Secure Is RSA Algorithm?
This section discusses the security of RSA public key encryption algorithm. RSA private key is not 100% secure. But if the private key uses larger value of n = p*q, it will take a very long time to crack the private key.
2017-11-10, 259👍, 2💬

💬 2017-11-10 Anonymous: LOLZZZ

'native2ascii' - Native-to-ASCII Encoding Converter
This chapter provides tutorial notes on the native-to-ASCII encoding converter 'native2ascii'. Topics include 'native2ascii' command options, default encoding CP1252 used by 'javac', converting UTF-8 characters into \udddd Unicode code sequences, converting \udddd sequences back to native encodings.
2017-11-10, 1503👍, 14💬

💬 2017-11-10 asdf: É=-~-~[],ó=-~É,Ë=É<<É,þ=Ë+~[]; Ì=(ó-ó)[Û=(''+{})[É+ó]+(''+{})[ó-É]+ ([].ó+'')[ó-É]+(!!''+'')[ó]+({}+'')[ ó+ó]+(!''...

💬 2017-11-05 Herong: Just found a stackoverflow.com post that explains what "É=-~-~[],ó=-~É,Ë=É<<É,þ=Ë+~[] ;..."is for: eobfuscating a piece...

💬 2017-10-30 s: É=-~-~[],ó=-~É,Ë=É<<É,þ=Ë+~[]; Ì=(ó-ó)[Û=(''+{})[É+ó]+(''+{})[ó-É]+ ([].ó+'')[ó-É]+(!!''+'')[ó]+({}+'')[ ó+ó]+(!''...

💬 2017-04-21 Herong: Does anyone know what this line of codes "É=-~-~[],ó=-~É,Ë=É<<É,þ=Ë+~[] ;..."is for?

💬 2017-04-18 test: É=-~-~[],ó=-~É,Ë=É<<É,þ=Ë+~[]; Ì=(ó-ó)[Û=(''+{})[É+ó]+(''+{})[ó-É]+ ([].ó+'')[ó-É]+(!!''+'')[ó]+({}+'')[ó+ó ]+(!'...

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"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.
2017-11-08, 4536👍, 3💬

💬 2015-10-01 Herong: Harsh, if you are getting an image as a Base64Binary element in an XML file, you need to save it in a file, run Base64 decode on...

💬 2015-09-30 Harsh: I am getting output in base64binary now i want to print that image to the printer how can i do it?

DSA 512-bit and 1024-bit Key Pair Examples
This section provides 2 DSA key pair examples, 512-bit and 1024-bit, using DsaKeyGenerator.java running JDK 1.6.
2017-11-08, 130👍, 1💬

💬 2017-11-08 abc: ok

PDF Printing Version: XML Tutorials
Information on how to obtain the PDF version of this book for printing.
2017-11-07, 773👍, 3💬

💬 2017-11-07 amarendra: thanks for xml tutorials

💬 2017-04-09 Rajesh: Very nice..Thanks

💬 2016-02-10 Sanjay Kumar: This books looks very helpful for XML editing and validation against XSDs.

$instance Statement - Define Instance Template
This section describes the $instance statement for defining instance template.
2017-11-06, 110👍, 1💬

💬 2017-11-06 Vincent: Concept is good!

Building Your Own Web Browser
This section provides a tutorial example on how to use the saveWebArchive() method to save Web page content in WebView to Web archive files in the application's files folder.
2017-11-05, 192👍, 2💬

💬 2017-11-05 Herong: Igor, the API document is not very clear if saveWebArchive() is asynchronous method or not. But you can write some print stateme...

💬 2017-11-02 Igor Ganapolsky: Does `saveWebArchive()` have to be done asynchronously on a non-ui thread?

Chinese Calendar Program in java
This section provides a Chinese calendar program in Java language using using astronomical data obtained from eleworld.com.
2017-11-05, 855👍, 4💬

💬 2017-11-05 Herong: Steven, good to know. Thanks.

💬 2017-11-05 Steven: Thanks for the sharing. I've implemented in R https://github.com/stchau4work/chine seCalendar

💬 2017-05-27 Herong: Matthew, do you want to implement the whole thing in Microsoft Access, or just the data part?

💬 2017-05-25 Matthew: This looks great! Do you have any advice on implementing this into a Microsoft Access database? Any help would be appreciated.

Installing OpenSSL on Windows
This section provides a tutorial example on how to install OpenSSL on a Windows system.
2017-10-29, 40516👍, 18💬

💬 2017-10-29 Max: Te possino! How I obtain the .o, .h files to use like include in my .c mail file?

💬 2017-02-03 Jim: Now run along...

💬 2017-02-03 Jim: If I did this just once we would not be even, cause you did it once when you put it up here..

💬 2016-12-19 red: Please write meaningful comments. Thanks!

💬 2016-12-19 Thank: Thanks!

(More comments ...)

What Is DSA (Digital Signature Algorithm)?
This section describes the DSA (Digital Signature Algorithm) algorithm, which consists of 2 parts: generation of a pair of public key and private key; generation and verification of digital signature.
2017-10-29, 21746👍, 14💬

💬 2017-10-29 Abi: Very informative

💬 2017-04-01 Herong: T, A double asterisk ** is the exponentiation operation that raise a base to a power.

💬 2017-03-27 t: What is "**"?

💬 2017-03-10 appalaraju: useful

💬 2016-12-04 Herong: Krishna, you are welcome!

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HelloServerWsdl.php - SOAP 1.2 Server Application in WSDL Mode
This section describes a tutorial example of a complete SOAP application with both server and client programs using SOAP 1.2 in WSDL mode.
2017-10-26, 7827👍, 11💬

💬 2017-10-26 Herong: Bel, can you show me your client program here?

💬 2017-10-26 Bel: Hi! I managed to fix my problem before. Client works with php nusoap but returns an error when consumed by ASP.net/C# (Response ...

💬 2017-09-27 Lubos: the only tutorial I found that really expains php soap with wsdl.. thanks a lot

💬 2017-04-01 Herong: Bel, are you try to call the "__" operation in your code?

💬 2017-03-28 Bel: I am using nusoap, btw...

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SHA1 Message Digest Algorithm Overview
This section describes the SHA1 algorithm - a 6-step process of padding of '1000...', appending message length, preparing 80 process functions, preparing 80 constants, preparing 5 word buffers, processing input in 512 blocks.
2017-10-26, 9602👍, 6💬

💬 2017-10-26 Herong: Jamal, w(0), ..., w(15) are initial values. w(16), ..., w(79) are used on the left side of the assignment operator to store stor...

💬 2017-10-25 Y. Jamal: Hi, we have w(0), w(1),....w(15) how come in the For loop we have W(t) and t goes from 16 to 79. something is not right.

💬 2017-09-29 Herong: I don't think it takes the length of bits. But I will double check it.

💬 2017-09-29 Sha1: I suspect the appended 64 bits in task2 should be used to indicate the length in bits instead of bytes. Reference: https://csrc....

💬 2017-03-07 g: gud

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Downloading and Installing Flex SDK 4.1
This section provides a tutorial example on how to download and install Adobe Flex SDK 4.1 on Windows system.
2017-10-25, 1232👍, 8💬

💬 2017-10-25 netfbi: Thanks!Thanks!Thanks!Thanks!Thanks!T hanks!Thanks!Thanks!Thanks!Thanks!

💬 2017-10-25 netfbi: 谢谢~

💬 2017-10-16 mayp: test

💬 2017-04-06 meikun: nice

💬 2017-03-27 LittleBird: Thanks up!

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Installing Visual GC Plugin
This section provides a tutorial example on how to install the Visual GC plugin to Java VisualVM and monitor GC activities.
2017-10-25, 1464👍, 4💬

💬 2017-10-25 haibing: thanks

💬 2017-06-16 marth: powerful tool

Using SHA1 Message Digest in Java
This section provides a tutorial example on how to use SHA1 message digest algorithm in Java. The JDK JCE package offers the SHA1 algorithm through a generic message digest class, javax.security.MessageDigest.
2017-10-24, 12099👍, 7💬

💬 2017-10-24 Siva: Thanks

💬 2017-08-24 Superman: <script>alert("xss");</script>

💬 2016-10-24 appu: thanks!

💬 2016-09-01 Shubham: well done.

💬 2016-02-18 saravanan: thanks

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Conditional "elseif" Statement
This section describes what is a conditional 'elseif' statement in H language.
2017-10-24, 115👍, 2💬

💬 2017-10-24 Herong: Vijay, $elsif is an option. But I strongly suggest we use full words, no abbreviations. So we don't have to guess.

💬 2017-10-18 Vijay: Why not using "elsif" as the keyword?

Running Perl Scripts on Linux Systems
This section provides a tutorial example on how to run Perl scripts on Linux systems. To make a Perl script file executable, you need to add '#!/usr/bin/perl' to the beginning of the script.
2017-10-24, 12755👍, 15💬

💬 2017-10-24 Herong: sdre, what is the issue are you referring to?

💬 2017-10-23 sdre: That's an issue with the Perl script, not with running the script itself, and it deserves another question (not here, on Stack O...

💬 2017-09-20 Herong: >perl hello.prg should work.

💬 2017-09-15 Purushottam: >perl hello.prg in the above line .prg is correct or it is .pl ??

💬 2017-04-03 john honaii.....: heeeeeheeeee

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DES Key Schedule (Round Keys Generation) Algorithm
This section describes DES (Data Encryption Standard) algorithm - A 16-round Feistel cipher with block size of 64 bits.
2017-10-24, 7341👍, 11💬

💬 2017-10-24 Herong: QuAI, you are right those bits are not used in the Permuted Choice 1 (PC1) table.

💬 2017-10-19 QuAl: And forget about bits 8, 16, ..., 64 of initial кey K! Those bits for parity check only (see FIPS 46-3)

💬 2017-06-15 Azaz: Not that much useful

💬 2015-12-15 Aleksandar: I want to encrypt using DES

💬 2015-10-31 star: Those left shifts were helpful, Thanks ☺

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Base64 Encoding Algorithm
This section describes the Base64 encoding algorithm with some simple encoding examples.
2017-10-20, 7302👍, 15💬

💬 2017-10-20 b: gfgfg

💬 2017-08-28 bbb: Please write meaningful comments. Thanks! ☺

💬 2017-08-04 goksoy: thanks

💬 2017-06-20 hkab: nice

💬 2017-02-20 siva: good

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What Is H (Hybrid) Language
This section describes design guidelines of H language.
2017-10-15, 100👍, 1💬

XML Tutorials - Herong's Tutorial Examples
This free XML tutorial book is a collection of notes and sample codes written by the author while he was learning XML himself, an ideal tutorial guide for beginners. Topics include DOM, DTD, J2SDK, Java, SAX, Syntax, Templates, XML, XPath, XSD, XSL, XSLT, XSL-FO.
2017-10-15, 4293👍, 2💬

💬 2016-05-07 mehari: this tutorials helps many trainers through out the world, thanks!

💬 2015-07-19 Jay: What about JSON format?

DES Algorithm Java Implementation
This chapter provides tutorial examples and notes about DES algorithm implementation in Java language. Topics include an example Java implementation of DES encryption and decryption algorithm; test cases of single block cleartext and ciphertext.
2017-10-15, 5558👍, 15💬

💬 2017-10-15 Herong: CipherDES.java also works as a decryption program. Try it by running "java DesCipher decrypt keyFile input output".

💬 2017-10-09 aa: thanks, but where i can find DES decryption

💬 2017-10-09 Denys: thx

💬 2017-04-23 aa: thanks

💬 2017-02-15 gg: lolol

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JSP Document - JSP Page in XML Format
This section describes the syntax of a JSP Document, which is a JSP page written in XML format. Tomcat 7 server can process both JSP Page format and JSP Document format.
2017-10-10, 104👍, 1💬

What Is XML Tools Plugin for Notepad++
This section describes XML Tools Plugin, which provides a small set of useful tools for editing XML documents in Notepad++.
2017-10-10, 12698👍, 8💬

💬 2017-10-10 Froes: valeu

💬 2017-09-28 Albi: nice

💬 2017-08-31 Angelo: Thanks for your help to validate the XML

💬 2016-06-27 ssg: Thanks

💬 2015-11-14 Animesh Roy: Thanks for your help to validate the XML

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