Security Concepts

List 6 details found on a Digital Certificate?

1. Owners public key 2. Owners Name 3. Expiry date of the public Key 4. Name of the issuer of the certificate 5. Serial Number of the certificate. 6. Digital Signature of the Issuer.

What is a Trojan?

A malicious program that disguises it self as a useful program.

What is a Key-Logger?

A program that gathers personal information in the form of key strokes or mouse clicks.

Who issues digital Certificates?

A trusted third party called a Certificate Authority (CA) i.e. Thawte; Verisign

What is a Worm?

A virus that duplicates itself on a computer.

What is Encryption?

A way of scrabbling data into a new format using a specified set of rules called a key.

What is a Digital Signature?

An Electronic Signature used to identify the sender of a message or the signatory of a document.

What is a Digital Certificate?

An Electronic document which includes a digital signature and public key to authenticate the identity of a person or an organization.

What is Automatic Encryption?

Encryption that happens without you consciously choosing to Encrypt data.

How does public Key Encryption work?

Mathematical Algorithms are used to create two separate keys for the encryption/decryption process. One key is private (used to decrypt) and the other is public (used to encrypt). You cannot decrypt the message using the key that was used to encrypt it.

How does private key Encryption Work?

Private key Encryption uses a single secret key for both encryption and decryption.

What is SSL?

Secure sockets layer is an encryption protocol which encrypts data that is sent over the internet by making use of public key encrytion.

Explain what IP spoofing is.

The creation of Internet Protocol (IP) packets with a forged source IP address, with the purpose of concealing the identity of the sender or impersonating another computing system

What is Local Encryption?

When you use encryption software to encrypt the files on your local storage.