COMPUTER FUNDAMENTALS

COMPUTER ETHICS AND SECURITY

CRYPTOGRAPHY AND ENCRYPTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
You are ready to publish a set of websites that includes the use of www.myWebsite.com and www.account.myWebsite.com. Which of the following SSL certificates will you want to purchase?
A
Multi-domain SSL certificate
B
Single SSL certificate
C
Subdomain SSL certificate
D
Wildcard SSL certificate
Explanation: 

Detailed explanation-1: -Hashing and encryption both provide ways to keep sensitive data safe. However, in almost all circumstances, passwords should be hashed, NOT encrypted. Hashing is a one-way function (i.e., it is impossible to “decrypt” a hash and obtain the original plaintext value). Hashing is appropriate for password validation.

Detailed explanation-2: -Which of the following is not a reason to revoke an SSL certificate? The validity period has ended.

Detailed explanation-3: -Rail fence ciphers are examples of transposition ciphers: The characters in the plaintext message are permuted to create the ciphertext.

There is 1 question to complete.