Preview lessons, content and tests

Computer Science & Programming solved. All in one platform.

1. To trial the platform and take tests, please take a few seconds to SIGN UP and SET UP FREE.

2. Searching for something specific? See our text overview of all tests. Scroll right for levels, and lists.

3. Student and Teacher User Guides |  Schemes of Work |   Real Teacher use Videos |


Join 30000+ teachers and students using TTIO.

Symmetric and Asymmetric Encryption

The basic difference between these two types of encryption is that symmetric encryption uses one key for both encryption and decryption, and the asymmetric encryption uses public key for encryption and a private key for decryption.

In a symmetric-key algorithm the key used to encrypt is the same as the one used to decrypt. For this reason, it needs to be kept secret. (Above)

Additional Reading

What is Encryption

https://en.wikipedia.org/wiki/Public-key_cryptography

Types of Encryption

http://encryptionanddecryption.com/algorithms/asymmetric_algorithms.html

Suggested Video

Video  Link #2: https://youtu.be/O4xNJsjtN6E

www.teachyourselfpython.com