Symmetric Key Cryptography
Symmetric Key Cryptography (also called Secret Key Cryptography) is the usage of ciphers that use the same exact key for both encryption and decryption of data/messages.
This key is secret and must be known only to the creator/sender of a message or data and the reader/receiver thereof.
- If anyone else gets the key, they will be able to access the message, thereby violating its confidentiality.
Symmetric Key Cryptography. "Figure 8-3: Symmetric Key Cryptography" (page 166), Nayak, U., & Rao, U. H. (2014). The InfoSec handbook: An introduction to information security (1st ed.). APRESS.
These notes by Miriam Briskman are licensed under CC BY-NC 4.0 and based on sources.