Public-key cryptography

Wikipedia, Nov 15, 2018
Commentary by Stephen Downes

Public-key cryptography, or asymmetric cryptography, is any cryptographic system that uses pairs of keys: public keys which may be disseminated widely, and private keys which are known only to the owner. This accomplishes two functions: authentication, where the public key verifies that a holder of the paired private key sent the message, and encryption, where only the paired private key holder can decrypt the message encrypted with the public key.

Views: 125 today, 403 total (since January 1, 2017).