Information Security UK 5

Public Key Encryption is also called as .......................

• Asymmetric Key Encryption

• Symmetric Key Encryption

• Hash

• Signature

A hash function is a function that takes an input (or 'message') and returns a.............................. string of bytes

• Fixed Size

• Variable size

• 64bytes

• 128bits

An example for hash Function is.........

• SHA

• MD5

• Both

.......................... was designed to provide all four aspects of security, i.e., privacy, integrity, authentication, and non-repudiation in the sending of email.

• PGP

• KGB

• MIME

• SHA

PGP stands for ............................

• Pretty Good Protection

• Pretty Good Privacy

• Privacy Good Protection

• Privacy Generated Publickey

A ................................is an electronic, encrypted, stamp of authentication on digital information such as email messages, macros, or electronic documents.

• digital signature

• Email

• Hash value

• Public key

In Digital Signature the Sender uses ................key

• Private

• Public

• both

• none

In asymmetric encryption, also known as public key cryptography, the sender uses the ......................................... to encrypt data.

• senders public key

• recipient's private key

• Recipient's public key

• none