2.2.3

Encryption Software

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Encryption Software

Encryption software is essential whenever sensitive data is being transferred or stored.

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What is encryption?

  • Encryption is the "scrambling" of data.
  • It works by applying a special encryption algorithm to the data in the file.
  • Encryption processes are very mathematical processes. Strong encryption algorithms can be the result of years of professional research.
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What is decryption?

  • Decryption is when an authorised party uses a special key to un-scramble the data.
  • The key prevents unauthorised users from accessing the data.
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Encryption in operating systems

  • Good encryption utilities will work closely with the operating system to encrypt and decrypt files in real time as you need to access them.

Jump to other topics

1Components of a Computer

2Software & Software Development

3Exchanging Data

4Data Types, Data Structures & Algorithms

5Legal, Moral, Cultural & Ethical Issues

6Elements of Computational Thinking

6.1Thinking Abstractly

6.2Thinking Ahead

6.3Thinking Procedurally

6.4Thinking Logically

6.5Thinking Concurrently

7Problem Solving & Programming

8Algorithms

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