Android ASP Astrology Big5 Bitcoin Blowfish Built-in C# Calendar CD-DVD Cheminformatics Chinese Cryptography DES Email Encoding Ethereum Flash GB2312 General H Herong History HTML Java JavaScript JDBC JSP JVM Linux Molecule Movie Music MySQL Neural Network Perl PHP Physics PKI Publication Python Reference REST SOAP Sorting Swing TV Series UML Unicode VBScript Web Web-Services Windows WSDL XML XMLPad XSD XSL-FO

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Windows Automatic Root Update Mechanism
This section describes the automated process used by Windows to communicate to Windows Update Website to fetch a trusted root certificate and install it on the local computer, whenever the root certificate is needed. 2020-06-08, ∼2699🔥, 2💬

💬 2020-06-08 Herong: Onur, the question at the end of your comment was not very clear. Can you rephrase it in a different way?

💬 2020-06-05 Onur: Actually, this auto update mechanism is present on older Windows versions as low as XP. See the article here on this site: Outda...

Configuring PHP OpenSSL on Windows
This section provides a tutorial example on how to install and configure the PHP OpenSSL module on Windows systems. PHP OpenSSL is provided as a DLL file called php_openssl.dll. 2020-05-21, ≈56🔥, 14💬

💬 2020-05-21 Herong: GHM, can you check if php_openssl.dll actually exists in the extension_dir folder?

💬 2020-05-19 GHM: I am totally new to php. How do I activate openssl so php can access functions. I installed php manager and it said that php_ope...

💬 2020-01-21 Herong: Nietzsche, can you provide the logic for the hasMeaning() function?

💬 2020-01-12 Nietzsche: Life is Meaningless: Input 1: if (Life::hasMeaning(self) === True) { echo "Life has Meaning"; } else { echo "Life is Meaningless...

💬 2019-10-09 Michael: Thank you! This helped me enable SSL on my PHP install

(More comments ...)

What Is HTTPS (Hypertext Transfer Protocol Secure)?
This section describes what is HTTPS (Hypertext Transfer Protocol Secure) - A communication protocol that uses the HTTP and the SSL/TLS protocols to provide encrypted communication and secure identification of a Web server. 2019-04-13, ∼1045🔥, 2💬

💬 2019-04-13 Herong: Maybe some other website did it, not my site. ☺

💬 2019-04-10 arlyneysiak@gmail.com: Your site erased my entire history. I'd like to get my history information back. Can you tell me how to do this. I would greatly...

Archived: IE 8 Displaying Certificate Error Page
This section provides a tutorial example showing that IE 8 fails to validate an HTTPS server certificate and displays a certificate error page. 2018-10-06, ∼830🔥, 2💬

💬 2018-10-06 Herong: Onur, Maybe the auto-install root CA certificate function has been turned off on your Win7 system. But you can always do it manu...

💬 2018-09-25 Onur: I use IE8 with Win7 x64 and i got SSL certificate error while accessing sites issued with Digicert Global Root CA "G2" certifica...

Creating a Digital ID and Sign Word Documents
This section provides a tutorial example on how to create a your own digital ID and use it to add a digital signature to a MS Word 2007 document. 2018-03-25, ∼4105🔥, 2💬

💬 2018-03-15 Herong: Laurenson, Word 2013 has removed the function to create your own test digital ID. You can go to Comodo to get real digital ID fo...

💬 2018-03-13 Laurenson: this is very helpful but I want to know how to create my own digital ID using Microsoft Office 2013

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, ∼3646🔥, 3💬

💬 2017-11-15 amal: third visit

💬 2016-04-29 amal: second visit

💬 2016-04-29 amal: first visit

Full Version in PDF/EPUB
Information on how to obtain the full version of this book in PDF, EPUB, or other format. 2017-07-01, ∼3518🔥, 12💬

💬 2017-04-21 Herong: Dzung, you should have it in your email box now. Thanks.

💬 2017-04-20 Dzung Nguyen: Dr. Herong; I really enjoy your books. I donated $5 through PayPal. Would you let me know where I can download this PKI Tutorial...

💬 2016-12-06 zhaojie: thanks,i'm learning http ,so to know https !

💬 2016-10-18 ItslSteven: thanks

💬 2016-08-17 Herong: billm, please send me an email. Thanks.

(More comments ...)

Using openStream() Method in java.net.URL Class
This section provides a tutorial example on how to use the openStream() method in the java.net.URL class to perform a GET method on an HTTPS server. Java Secure Socket Extension (JSSE) works quietly behind the java.net.URL class to provide HTTPS support. 2017-05-23, ∼2542🔥, 2💬

💬 2017-05-23 Herong: Mike, the issue could be that Yahoo Finance server is expecting some standard HTTP request headlines this Java program is not pr...

💬 2017-05-22 Mike: when I run the above java program with the following argument, I got a 401. If I directly paste the same https link to a web bro...

Listing of Trusted Root CA in Google Chrome
This section provides a tutorial example on how to see the list of trusted root CA (PKI Authorities) pre-installed in Google Chrome. 2016-09-16, ≈13🔥, 1💬

💬 2016-09-16 Pooja Shukla: good

Digital Signature Scheme for Email Messages
This section describes the digital signature scheme for email messages. The process of signing an email message is the same as signing other digital documents. 2016-09-08, ∼1428🔥, 1💬

💬 2016-09-08 shradha: nice one

Testing OpenSSL with fopen()
This section provides a tutorial example on how to test the PHP OpenSSL module with the fopen() function to run a GET request on an HTTPS server. 2016-03-25, ∼516🔥, 1💬

Introduction of PKI (Public Key Infrastructure)
This chapter provides a quick introduction of PKI (Public Key Infrastructure). Topics include what is PKI; usage examples of PKI; most popular certificate authorities. 2016-02-22, ∼2917🔥, 2💬

💬 2016-02-22 Charlie Beebout: Thank you. I am looking forward to familiarizing myself with security issues.

Converting KeyStore Files to PKCS12 Files
This section provides a tutorial example on how to convert a KeyStore file to a PKCS12 file, because Windows 'Internet Options' can import keys and certificates from PKCS12, but not from KeyStore file. 2016-02-07, ∼1848🔥, 2💬

💬 2016-02-07 Herong: Steve, Fully agree! I put it in command line, because it is easier to document. I will put a warning the tutorial.

💬 2016-02-07 Steve: Hi! No password in command line , please ! Can be read in history... Bad practice :(

Testing OpenSSL with file_get_contents()
This section provides a tutorial example on how to test the PHP OpenSSL module with the file_get_contents() function to run a GET request on an HTTPS server. 2015-12-26, ∼434🔥, 1💬

View Digital Signatures in Word Documents
This section provides a tutorial example on how to view digital signatures in MS Word 2007 documents. Clicking the digital signature icon in the status bar turns on and off the Signatures panel when editing Word documents. 2015-11-30, ∼990🔥, 1💬

Microsoft Management Console (MMC)
This section describes the Microsoft Management Console (MMC), which can be used to create a console to manage certificate stores on Windows systems. 2015-10-11, ∼1121🔥, 1💬

💬 2015-10-11 koloraza: mistratra betsaka fa tena tsra ny ataonao ry namamana

"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, ≈10🔥, 1💬

💬 2015-09-10 Action Here: this totally helped me.

<< < … 7 8 9 10 11 12   ∑:281  Sort:Rank

Android ASP Astrology Big5 Bitcoin Blowfish Built-in C# Calendar CD-DVD Cheminformatics Chinese Cryptography DES Email Encoding Ethereum Flash GB2312 General H Herong History HTML Java JavaScript JDBC JSP JVM Linux Molecule Movie Music MySQL Neural Network Perl PHP Physics PKI Publication Python Reference REST SOAP Sorting Swing TV Series UML Unicode VBScript Web Web-Services Windows WSDL XML XMLPad XSD XSL-FO