SSL Complete Guide 2021: HTTP to HTTPS - Modulus Operation

The video tutorial introduces the concept of modulus operation, explaining it as a mathematical operation that calculates the remainder of division between two numbers. Several examples are provided to illustrate how the modulus operation works. The tutorial further explains why modulus is considered a one-way function, highlighting that knowing the result and one of the numbers does not allow retrieval of the original number. Finally, the video briefly introduces the Diffie-Hellman algorithm, which utilizes the modulus operation.

What is the result of 10 mod 4?

• 2

• 1

• 0

• 3

Which of the following is an example of a modulus operation?

• 5 + 3 = 8

• 10 - 2 = 8

• 20 / 5 = 4

• 15 mod 4 = 3

Why is the modulus operation considered a one-way function?

• Because it can only be used with prime numbers

• Because it is reversible

• Because it always results in zero

• Because knowing the result and divisor does not reveal the original number

In the context of modulus operation, what does 'one-way function' imply?

• The operation is computationally expensive

• The original number cannot be determined from the result and divisor

• The original number can be easily determined

• The operation can be easily reversed

What is the significance of the modulus operation in the Diffie-Hellman algorithm?

• It helps in generating keys

• It is used to sort data

• It is used to encrypt messages

• It is used to compress data