Intro to Cryptography WGU C839 Module 3 Questions and Answers 100% Pass

Consists of public and private keys The public key is made public by publishing to a directory or installed on a computer. The private key is kept secret Does not involve exchanging a secret key or key exchange The public key is used to encrypt messages only the recipients private key can decrypt Asymmetric Cryptography Slower then Symmetric algorithms provides a secure way to communicate provides a method of validation Non-repudiation Disadvantages and Advantages of Asymmetric Crypto Denotes the natural numbers. These are also sometimes called the counting numbers. they are 1, 2, 3, etc. N Denotes the integers. These are whole numbers -1, 0, 1, 2, etc. The natural numbers combined with zero and and the negative numbers Z Denotes the rational number (ratios of integers). Any number that can be expressed as a ratio of two integers. i.e. 3/2, 17/4, 1/5 Q Denotes the real numbers. This includes the rational numbers as well as numbers that cannot be expressed as a ratio of two integers, such as √2 R Denotes imaginary numbers. These are numbers whose square is a negative √-1 - 1i i