+A cryptographic protocol is a meticulously defined sequence of operations, leveraging [Cryptography](/wiki/cryptography) to secure information and communication. It ensures properties like [Authentication](/wiki/authentication) or data confidentiality, even over untrusted networks.
+## See also
+- [Encryption](/wiki/encryption)
+- [Digital Signature](/wiki/digital_signature)
+- [Key Exchange](/wiki/key_exchange)