+PKI, or [Public Key Infrastructure](/wiki/Public_Key), establishes a framework for digital trust and secure communication. It verifies identities using [digital certificates](/wiki/Digital_Certificate), ensuring the authenticity and integrity of online interactions. This system underpins much of our modern web security.
+## See also
+- [Cryptography](/wiki/Cryptography)
+- [Encryption](/wiki/Encryption)
+- [Certificate Authority](/wiki/Certificate_Authority)
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