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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.
2020-11-23, 10770👍, 5💬

💬 2020-11-23 rt: 12 234 45 5656

💬 2019-04-22 xyz: $9$RTHhSlWL7VsguO7dbw4oiHqf6CuOIRhyl K4JGDq.TQF/OIcyeLXNbsPTz3CAW8X

💬 2018-10-20 Herong: Marco, I just did a Google translation on your comment: "I wonder what all this could be". Are you trying to ask a question?

💬 2018-10-16 Marco: mi chiedo che cosa potrebbe essere tutto questo

💬 2015-11-03 cpp: hello

ChangeLengthUnit - Usage Description
This section describes the free Web service ChangeLengthUnit provided by WebserviceX.NET. ChangeLengthUnit allows you to convert length values in Millimeters, Centimeters, Inches, Feet, Yards, Meters, Kilometers, Miles and more.
2020-11-23, 235👍, 3💬

💬 2020-11-23 mmm: hello world

💬 2020-08-20 Herong: Mike, I don't have the source code. Hope someone can develop one. It shouldn't that hard.

💬 2020-08-18 Mike: The service is no longer available at that URL. Any chance you can release the source code so someone can re-host it?

Illustration of RSA Algorithm: p,q=5,7
This section provides a tutorial example to illustrate how RSA public key encryption algorithm works with 2 small prime numbers 5 and 7.
2020-11-22, 2455👍, 4💬

💬 2020-11-22 Herong: fab, as shown in the tutorial, the modulus is 35. The encryption key (public key) is 5, and the decryption key (private key) is ...

💬 2020-11-15 fab: Construct an example of the RSA scheme as follows. The two primes to be used for the modulus N are 5 and 7. What is (N)? Confir...

💬 2019-01-21 Herong: someone, why 35 and 5 must be coprime numbers?

💬 2019-01-16 someone: >Compute n = p*q: n = 5*7 = 35 >Compute m = (p-1)*(q-1): m = 4*6 = 24 >Select e, such that e and m are coprime numbers: e = 5 35...

1964 - Ma Ling Er Xiang Lai ... (马铃儿响来玉鸟儿唱) - Bird Singing Along With Horse Bell Ringing
Ma Ling Er Xiang Lai Yu Niao Er Chang (马铃儿响来玉鸟儿唱) - Bird Singing Along With Horse Bell Ringing, lyrics by Ge Yan (葛炎), Liu Qiong (刘琼), music by Luo zongxian (罗宗贤), Ge Yan (葛炎), produced in 1964.
2020-11-22, 117👍, 2💬

💬 2020-11-22 Herong: Lucas, that's a huge challenge for me. Hope someone else reading this comment can help you out.

💬 2020-11-12 Lucas Tazikly: Hi, herong! I'm trying to learning to play this song on the piano and sing it in English, so can you please translate Ma LIng Er...

Retrieving and Setting HTTP Cookies
This section provides a tutorial example on how to retrieve cookies from the HTTP request header and set cookies to the HTTP response header. Cookie objects are created with the CGI::Cookie class.
2020-11-22, 145👍, 4💬

💬 2020-11-22 Herong: Rajat, LWP-UserAgent-Request.pl script only fires a single HTTP request to single Web server. To get 3rd party cookies, you need...

💬 2020-11-12 Rajat: Thanks sir i have tried out ` "LWP-UserAgent-Request.pl - GET, POST and Cookies" tutorial` but that didn't work. The cookie is a...

💬 2020-11-11 Herong: Rajat, you can follow "LWP-UserAgent-Request.pl - GET, POST and Cookies" tutorial to download cookies from Website.

💬 2020-11-07 Rajat: Hello sir. I want to get the cookie from site which is HTTP protected.With the above method not able to get it.Please help. Than...

Downloading and Installing JDK 1.8
This section describes how to download and install Java SE Development Kit (JDK) 8u45 on a Windows system.
2020-11-20, 12035👍, 10💬

💬 2020-04-27 ema: thanks

💬 2020-04-27 ema: thanks

💬 2020-04-27 ema: thanks

💬 2019-04-16 yacine: thanks

💬 2017-10-09 Ivan: Thanks!

(More comments ...)

setMnemonic() - Setting Keyboard Mnemonics on Menu Items
This section provides a tutorial example on how to use setMnemonic() method to associate mnemonics to menu items. Mnemonics allows user to interact with menu items using keys on keyboard.
2020-11-20, 452👍, 2💬

💬 2020-11-20 rose: nic

The Constancy of the Speed of Light
This section provides a thought experiment to help understanding the second assumption of the special theory of relativity: The constancy of the speed of light.
2020-11-20, 385👍, 11💬

💬 2020-11-20 Hiroji kurihara: Speed of light In the value of speed of light measured by Evenson et al (in 1972), error is ± 1.1 m / s. If the measurement devi...

💬 2020-07-03 Hiroji kurihara: All of propagation of light (I say again) Bradley found annual aberration on gamma star : Eltanin. In books, picture of ellipse ...

💬 2020-06-03 Hiroji kurihara: Is light speed constant!? To the upper right at 45 degrees in still water, plane waves of light is propagated. Above the water s...

💬 2020-05-02 Hiroji Kurihara: Time dilation In outer space ahead, two space ships are receding to the right and the left (at the same speed : aether is invali...

💬 2020-04-27 Hiroji kurihara: Time dilation Ahead of us, a light source is shining. On the left space, two space ships are passing each other (horizontally : ...

(More comments ...)

Ethereum Public Key and Private Key Example
This section describes examples of public key and private key of an Ethereum account.
2020-11-19, 138👍, 1💬

Downloading and Installing Visual C# 2010 Express
This section provides a tutorial example on how to download and install Microsoft Visual C# 2010 Express edition on Windows systems.
2020-11-15, 4700👍, 27💬

💬 2020-11-15 tang: good

💬 2020-10-04 asdasdasd: dsadsd

💬 2020-09-29 aidan: meaningful comments

💬 2020-09-26 qijidong: good

💬 2020-06-08 zzzz: good

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SSL Socket Communication Test
This section describes how to perform a SSL socket communication test with a SSL server socket test program, a SSL client socket test program, a pair of private key and public key, and a self-sign certificate of the public key.
2020-11-14, 106👍, 1💬

Perl Tutorials - Herong's Tutorial Examples
This Perl tutorial book is a collection of notes and sample codes written by the author while he was learning Perl language himself. Topics include ActivePerl, data types, subroutines, debug, references, objects, open, binary, file, directory, DBM, MySQL, regular expression, RPC::XML, XML::Simple, S...
2020-11-12, 6037👍, 6💬

💬 2020-11-12 Rajat: Hi Herong sir, I am getting error while doing $mech->post for a request every time.Error looks like this `read timeout at /usr/s...

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

💬 2017-10-06 drhvr: mysql I added root as user and password.in singlequotes. It works great

💬 2014-03-17 Steven Klotz: Hi Herong, I found this web site while looking for PERL examples. Your knowledge and the amount of work you done (docu, tutorial...

💬 2010-11-22 Herong: Kim, Yes, you can prompt the user for a path name, open directory with opendir(), loop through each files, use the -s operator t...

(More comments ...)

1993 - Tao Sheng Yi Jiu (涛声依旧) - Wave Still
Tao Sheng Yi Jiu (涛声依旧) - Wave Still, Lyrics by Chen Xiaoqi (陈小奇), Music by Chen Xiaoqi (陈小奇), Performed by Mao Ning (毛宁) at The CCTV New Year's Gala in 1993.
2020-11-11, 125👍, 4💬

💬 2020-11-11 Herong: Zander, Try to create a Word document with the PowerPoint link first. Then convert the Word document to PDF form.

💬 2020-11-11 Herong: Harry, All songs listed here are publicly available. You can just follow links to listen to them.

💬 2020-11-09 Zander: Good day! Can I ask how do you put a PowerPoint link in a pdf form

💬 2020-11-09 Harry S: Can I ask if i can download 33 songs in this website

1964 - Wo Wei Zu Guo Xian Shi You (我为祖国献石油) - Dedicate The Oil To My Motherland
Wo Wei Zu Guo Xian Shi You (我为祖国献石油) - Dedicate The Oil To My Motherland, lyrics by Xie Zhuguo (薛柱国), music by Qin Yongcheng (秦咏诚), produced in 1964.
2020-11-11, 167👍, 5💬

💬 2020-11-11 Herong: 可以试试这个方法:百度视频如何下载

💬 2020-11-08 杨万强: 你好,我想问怎么样下载百度视频,因为是我朋友的生日。我想下载周华健的朋友 .我在哪里可以找到?

💬 2020-11-08 杨万强: 你好 Herong, 我想问你们怎么样下载百度的视频在我的会声会影相册,因为是我战友的生日。

💬 2020-10-14 Herong: 可以,没问题。

💬 2020-10-12 王林各: 我为祖国献石油可以放在战友相册吗?

PDF Printing Version: JDBC Tutorials
Information on how to obtain the PDF version of this book for printing.
2020-11-11, 2731👍, 16💬

💬 2020-11-11 Herong: Erik, Links are fixed now. Thanks.

💬 2020-10-29 Erik: Your Amazon link is wrong...

💬 2019-05-10 Raed: nice to gut Ducument about JDBC thanks alot.

💬 2018-04-21 Herong: Tony, you are welcome!

💬 2018-04-20 Tony Ekpo: I appreciate your work because it has help me so much connecting to the database, more grace n ur work.

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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.
2020-11-11, 7051👍, 17💬

💬 2018-12-13 syed zia ur rehman: i realy like your link

💬 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

(More comments ...)

EC Private and Public Key Pair
This section introduces what is EC (Elliptic Curve) key pair - a pair of private key and public key constructed from a given subgroup generator in a given elliptic curve group.
2020-11-07, 112👍, 1💬

💬 2020-11-07 abc: Ravana

About HerongYang.com
This web site provides a collection of about 40 free tutorial books on programming languages, Web applications, database, Chinese language and other topics. See the site map for a complete list of all tutorial books. Contact Information Name: Herong Yang Email: herong_yang...at...yahoo Web: http://w...
2020-11-06, 49432👍, 23💬

💬 2020-11-06 schradermichael950@gmail.com: Good day!  I happened to find your website very usable and interesting. And I would like to ask you whether you accept links for...

💬 2020-06-20 Herong: William and others, I am not interested in placing other ads on this site at this moment. Thanks.

💬 2020-06-16 William James: Hi, My name is William from Infolinks. I want to purchase a guaranteed advertising placement on your advertising inventory. Unde...

💬 2020-06-03 Herong: Den, calm down! Somehow you did figure out the stupid math to enter your comment. It’s not that difficult...

💬 2020-06-02 den: Holly f••k.. this captcha is a shity thing... how people should know the stupid math (a,b)=(1,3)?

(More comments ...)

U1D100: Musical Symbols
This section provides a quick summary of the Unicode code point block: 'Musical Symbols', which contains 256 code points to represent Musical Symbols alphabets used in the Musical Symbols language.
2020-11-06, 158👍, 1💬

What Is PKCS5Padding?
This section describes what is PKCS5Padding - a schema to pad cleartext to be multiples of 8-byte blocks.
2020-11-04, 28427👍, 9💬

💬 2020-11-04 perico: otra vez va a salir trump??

💬 2016-06-16 yo: hola pescado

💬 2016-04-04 ankit: this is me.

💬 2016-01-28 John: Herong, thanks a lot.

💬 2016-01-27 Herong: John, the schema of PKCS7Padding can be described as below: Pad the input at the trailing end with k−(l mod k) octets with the s...

(More comments ...)

GB2312编码自学教程 - PDF打印版
本章介绍了如何索取 PDF 打印版。
2020-11-02, 111👍, 1💬

💬 2020-11-02 hello: hello

Downloading and Installing JDK 1.8.0 on Windows
This section provides a tutorial example on how to download and install JDK 1.8.0 (Java SE 8) on a Windows 7 system. A simple Java program was entered, compiled, and executed with the new JDK installation.
2020-11-01, 1575👍, 4💬

💬 2020-11-01 Sivile: This is good

💬 2019-05-13 Myo Nyein: thanks

💬 2016-03-10 sudha: thanks

💬 2015-09-22 ram: no

Unicode Standard Releases
This section provides a list of major releases of the Unicode standard and their publishing dates.
2020-10-26, 117👍, 1💬

GB2312 to Unicode - Row 16: 0xB0A1 to 0xB0FE
GB2312 to Unicode code mapping is provided for GB2312 character set - Row 16: Level 1 Hanzi Characters 0xB0A1 to 0xB0FE.
2020-10-25, 135👍, 1💬

💬 2020-10-25 海阔天空: 海阔天空

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