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Hashing and cryptography
Added: November 2020.
This short video explains what hashing is in computer science and how it enables us to preserve the integrity of our data.
This is coupled with an explanation of Public/Private Key cryptography, explaining how we securely share data around the Internet.
Questions and answers
If you've got any questions about this video, please email stemexpert@bt.com and we'll answer them here...
Curriculum links
Data and information   »   Encryption   »   What is encryption?
Data and information   »   Encryption   »   Asymmetric encryption
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