Viewing Certificate Details

This section provides a tutorial example on how to view certificate details when visiting an 'https' Web site in Chrome.

When you visit an "https" Web server, it will send its certificate to your browser. Server's certificate is needed by the browser for these 2 tasks:

Normally, your browser will do these 2 tasks automatically without your interaction. You don't need to know where is the server certificate and what's in the certificate.

But since I am interested to learn more about "https" communication, I want to see the server certificate. Here is what I did on Chrome 75 to see details of the server certificate.

1. Run Chrome and go to https://login.yahoo.com and wait for the log in page to be loaded.

2. Click the lock icon in front of the Web address field. A small pop up windows shows up.

3. Click the "Certificate" link on the pop up window. The Certificate dialog box shows up. The General tab tells me this information:

This certificate is intended for the following purpose(s):
- Ensures the identify of a remote computer
- Proves your identity to a remote computer

Issued to: *.login.yahoo.com
Issued by: DigiCert SHA2 High Assurance Server CA
Valid from 3/18/2019 to 2/15/2020

4. If you click the Details tab, you will details of this certificate:

Version               V3
Serial number         0332...
Signature algorithm   sha256RSA
Signature has algorithm sha256
Issuer                DigiCert SHA2 High Assurance Server CA
Valid from            Sunday, August 18, 2019 8:00:00 PM
Valid to              Saturday, February 15, 2020 8:00:00 AM
Subject               *.login.yahoo.com, Oath Inc, ...
Public key            RSA (2048 Bits)
Authority Key Identifier KeyID=5168...
Subject Key Identifier   c55b...
...
Thumbprint            39dcf2069ac7fae25f10937f8cb1c8b764bddab2

Cool. Now I see details of a real certificate for commercial uses. The picture below shows you steps to reach certificate details:

Google Chrome - Certificate Detail View
Google Chrome - Certificate Detail View

Notice that the "Certificate" dialog box used in Chrome is identical to "Certificate" dialog box used in IE (Internet Explorer) 11. See IE 11 tutorials for information provided on the "Certificate Path" tab.

Table of Contents

 About This Book

 Cryptography Terminology

 Cryptography Basic Concepts

 Introduction to AES (Advanced Encryption Standard)

 Introduction to DES Algorithm

 DES Algorithm - Illustrated with Java Programs

 DES Algorithm Java Implementation

 DES Algorithm - Java Implementation in JDK JCE

 DES Encryption Operation Modes

 DES in Stream Cipher Modes

 PHP Implementation of DES - mcrypt

 Blowfish - 8-Byte Block Cipher

 Secret Key Generation and Management

 Cipher - Secret Key Encryption and Decryption

 Introduction of RSA Algorithm

 RSA Implementation using java.math.BigInteger Class

 Introduction of DSA (Digital Signature Algorithm)

 Java Default Implementation of DSA

 Private key and Public Key Pair Generation

 PKCS#8/X.509 Private/Public Encoding Standards

 Cipher - Public Key Encryption and Decryption

 MD5 Mesasge Digest Algorithm

 SHA1 Mesasge Digest Algorithm

 OpenSSL Introduction and Installation

 OpenSSL Generating and Managing RSA Keys

 OpenSSL Managing Certificates

 OpenSSL Generating and Signing CSR

 OpenSSL Validating Certificate Path

 "keytool" and "keystore" from JDK

 "OpenSSL" Signing CSR Generated by "keytool"

 Migrating Keys from "keystore" to "OpenSSL" Key Files

 Certificate X.509 Standard and DER/PEM Formats

 Migrating Keys from "OpenSSL" Key Files to "keystore"

 Using Certificates in IE

Using Certificates in Google Chrome

 Visiting an "https" Web Site with Chrome

Viewing Certificate Details

 Exporting Certificate from Chrome to File

 Managing Certificates in Certificate Stores

 Using Certificates in Firefox

 Outdated Tutorials

 References

 Full Version in PDF/EPUB