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M2 - How data transmitted over a network can be protected by encryption for Unit 7 - Organisational Systems Security

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This presentation explains how data transmitted over a network can be protected by encryption.

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  • October 31, 2023
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  • 2020/2021
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HOW DOES ASYMMETRIC ENCRYPTION WORK?
This method of encryption uses two keys for the encryption process: one public and one priv

M2 user chooses which key will be used to encrypt data and which key will be used to decrypt d
matter what key is used). The public key is available for everyone to use and can be given ou

RSA number of times. The private key on the other hand must remain with the initial recipients o


WHAT IS RSA?
Named after their creators (Rivest, Shamir and Adleman), RSA is a security algorith
SOURCES: powered by asymmetric encryption. It’s the gold standard for encrypting and dec
• Asymmetric Encryption & RSA information that’s sent across the Internet. RSA is a reliable algorithm because it p
Information millions of strands of complex and meaningless code for hackers to decipher. This w
• RSA Information #2 them either wasting days attempting to access the system or they’ll grow frustrate
• RSA Quora Disadvantage
Question Answer ADVANTAGE:
It’s much easier to authenticate someone's identity. This make
control who can see/interact with any data sent using RSA, thu
the major weakness of their symmetric encrypted algorithm co

DISADVANTAGE:
Confidentiality can be easily lost if the users aren’t caref
example, if the user chooses the public key to encrypt d
it, all of your past encrypted data would forever remain
However, this issue can be worked around if good comm
skills are used to keep track of who publicly has what ke

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