Chapter 4 part 2 of 2 - Security

The length of keys is a factor in determining the overall security of a transmission.

IPsec is transparent to applications, users, and software.

The current version of the Transport Layer Security (TLS) is v1.2

Pretty Good Privacy ( PGP ) is a widely used software encryption that utilizes an asymmetric cryptographic algorithm.

Hardware encryption is a more secure form of encryption.

Which port does HTTPS use?

Keys of less than 2048 bits are considered weak.

Secure Sockets Layer (SSL) uses the Advanced Encryption Standard (AES).

What does SSL stand for

SSL and TLS are widely used protocols are used to protect data-in-transit?

What does HTTPS stand for?

A Secure Shell (SSH) is an encrypted alternative to the Telnet protocol used to access remote computers.

A Secure Shell (SSH) is a suite of three utilities: slogin, SSH, and SCP.

The current version of SSL is 3.0

Cryptography is the scrambling of information so that it cannot be read.

True or False. Modern cryptographic algorithms rely upon underlying mathematical formulas.

Transport Layer Security (TLS) versions starting with v1.1 are significantly more secure than SSL v3.0

In regard to HTTPS: The secure version is actually "plain" HTTP sent over SSL or TLS.

Public Key Infrastructure (PKI) is a framework for all of the entities involved in digital certificates.

A Secure Shell (SSH) is a Linux/UNIX-based command interface and protocol.

Secure/Multipurpose Internet Mail Extensions (S/MIME) is a protocol for securing email messages.

IPsec provides three areas of protection that correspond to three IPsec protocols:

What does TLS stand for?

What does S/MIME stand for?

Which port does HTTP use:

A common use of TLS and SSL is to secure HTTP communications between a browser and web server.

In regard to Transport Layer Security (TLS), SSL v3.0 served as the basis for TLS v1.0

In IPsec: Tunnel encrypts both the header and the data portion.

The design goal of the Secure Sockets Layer (SSL) was to create an encrypted data path between a client and a server.

Keys of 2048 bits are considered good.

In IPsec: Transport encrypts only the data portion of each packet and leaves the header unencrypted.

Certificate authority (CA) is responsible for Digital Certificates

What are the three classes of cryptographic algorithms?

IP security (IPsec) is a transparent security protocol

IPsec supports two encryption modes:

Encryption can be applied through software and hardware.

In regard to Secure Sockets Layer (SSL), one of the most common transport algorithms.

What does IPsec stand for?

Secure/Multipurpose Internet Mail Extensions (S/MIME) allows users to send encrypted digitally signed messages.

Secure Sockets Layer (SSL) was developed by Netscape.

Cipher Suite is a combination of encryption, authentication, and the message authentication code (MAC) algorithms.

A symmetric cryptographic algorithm uses a single key to encrypt and decrypt a message.

In SSH, client and server ends of the connection are authenticated using a certificate and passwords are encrypted.

Keys of 4096 bits are strong.

A Secure Shell (SSH) can be used as a tool for secure network backups.

What does SSH stand for?