Data Comm 4

Based on the image, IFMMP is the ____.

Based on the image, HELLO is the ____.

If the encryption key is [letter + 1], what is the ciphertext if the plaintext is 'SECRET'?

If the decryption key is [letter - 1], what is the plaintext if the ciphertext is 'GJFTUB'?

It also known as a shared key or private key algorithm, uses the same key for encryption and decryption.

• Symmetric encryption

• Asymmetric encryption

Hashing is a two-way function that includes encryption and decryption.

• TRUE

• FALSE

State one usage of encryption and decryption.

What is the difference between channelization and multiplexing?

Give one application of channelization.

Give one importance of channelization.