Uses of Encryption

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Information Technology in a Global Society

Chapter 3 - Encryption and Interception of Communications - Pg 129

Describe at least three different kinds of uses of encryption that have social value. (Indicate why they are valuable).

* Encryption can be used to protect personal communications - such as telephone calls or email - from unauthorized access. This is very important because it gives users the ability the ensure that their privacy is maintained and not violated by preventing unauthorized people from being able to spy on their personal communications.

* Encryption is also useful in protecting sensitive data - such as credit numbers for internet purchases - that is in transit from unauthorized access. Without encryption, internet purchases would be highly insecure as anyone would be able to intercept the financial details of buyers. Encryption therefore prevents the financial details of internet buyers from being stolen and as a result makes secure internet purchases possible.

* As well, encryption is used to protect personal stored data - such as financial information and medical records - from unauthorized access and alteration. This is important because it gives people the ability to protect their privacy by