+A private key is a secret, unique string of data. It is the crucial component for proving [identity](/wiki/identity) and creating [digital signatures](/wiki/digital_signature), acting as the ultimate key to unlock or sign digital information. Its secure safekeeping is paramount to digital trust.
+## See also
+- [Public Key](/wiki/public_key)
+- [Cryptography](/wiki/cryptography)
+- [Encryption](/wiki/encryption)