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Problem 6: Find and give the following information for any real-world certificat

ID: 3737959 • Letter: P

Question

Problem 6: Find and give the following information for any real-world certificate of your choice. You can choose your bank, email, web browser, or any other system. (20 points) a. Subject name (including domain name) b. Expiration date c. First 16 bytes of public key d. Certificate Authority name e. Type of encryption used for signature f. Give a step-by-step process that enables the browser to validate the certificate. g. Indicate whether it is an intermediate CA's certificate or trusted root CA's certificate.

Explanation / Answer

We'll use a popular email service (G mail) certificate to provide required information.

a.

Subject Name : G mail

Domain Name : https://mail.google.com

b.

Expiration Date : Thursday, 31 May 2018 at 12:23:00

c.

First 16 bytes of public key : 04 53 A9 3D 9D EB 31 21 76 92 97 84 D9 C1 F3 99

d.

Certificate Authority Name : Google Internet Authority G3

e.

Type of encryption used for signature : SHA-256 with RSA Encryption

f.

Step-by-step process that enables the browser to validate the certificate -

g.

The certificate is an Intermediate CA's (Google Internet Authority G3) certificate.