CRYPTOGRAPHY

Question 1

• It is a science of protecting information by encoding it into unreadable format.
• It is a method of making and breaking of secret codes.
• is a science of encrypting and decrypting written communication.

Answer 1

CRYPTOGRAPHY

Question 2

“KRYPTO” which means

Answer 2

hidden

Question 3

“GRAPHENE” which means

Answer 3

writing.

Question 4

is the process of transforming plain text into codes form using a certain algorithm

Answer 4

ENCRYPTION

Question 5

s the process of returning/converting back the coded message into plain text.

Answer 5

DECRYPTION

Question 6

-refers to the original text

Answer 6

PLAIN TEXT

Question 7

• refers to the coded text

Answer 7

CIPHER TEXT

Question 8

• refers to the strings of information that is used to reveal the encrpyted message into readable form

Answer 8

KEY

Question 9

-it is the simple type of substitution cipher.
- it uses shift in forming the key of cryptography

Answer 9

SHIFT CIPHER (CEASAR CIPHER)

Question 10

-the sender of the uses the key K to encrypt and to decrypt the secret message.

Answer 10

MODULO OPERATOR