+A **Secret Key** is a piece of confidential information, often a string of bits, shared only between authorized parties. It is fundamental to [Symmetric Cryptography](/wiki/Symmetric_Cryptography) for both encrypting and decrypting data, ensuring [Data Security](/wiki/Data_Security) and privacy. This shared secret allows secure communication and authentication.
+## See also
+- [Encryption](/wiki/Encryption)
+- [Decryption](/wiki/Decryption)
+- [Cryptographic Key](/wiki/Cryptographic_Key)
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