Symmetric Cryptography is a branch of cryptography in which a cryptographic system or algorithms use the same cryptographic key for both encryption and decryption of ciphertext. The keys may be identical or there can be a simple transformation to go between the two keys. The keys, in practice, represent a shared secret between two or more parties that can be used to maintain a private information link. This requirement that both parties have access to the secret key is one of the main drawbacks of symmetric key encryption, in comparison to public-key encryption (also known as asymmetric key encryption).
Source: CNSSI 4009, SANS
Related Terms: Asymmetric Encryption or Public Key Encryption
If you would like more on this topic, watch this short video:
CyberHoot does have some other resources available for your use. Below are links to all of our resources, feel free to check them out whenever you like:
- Cybrary (Cyber Library)
- Press Releases
- Instructional Videos (HowTo) – very helpful for our SuperUsers!
Note: If you’d like to subscribe to our newsletter, visit any link above (besides infographics) and enter your email address on the right-hand side of the page, and click ‘Send Me Newsletters’. Sign up for the monthly newsletter to help CyberHoot with their mission of making the world ‘More Aware and More Secure!’