+Symmetric cryptography guards data with a single, shared [Secret Key](/wiki/secret_key), used for both encryption and decryption. This method offers speed and efficiency, but critically depends on secure [Key Exchange](/wiki/key_exchange) between parties.
+## See also
+- [Asymmetric Cryptography](/wiki/asymmetric_cryptography)
+- [Block Cipher](/wiki/block_cipher)
+- [Stream Cipher](/wiki/stream_cipher)
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