Public key cryptography is a concept which involves the use of two keys: a public key, that you can give to anyone with whom you would like to communicate, and a private key which is private and must be kept secret.
Gako publikoaren kriptografiak bi gakoren erabilera nahasten du: gako publiko bat (jakinarazi nahi diozun edozeini eman diezaiokezu), eta gako pribatu bat (pribatua da eta ezkutuan gorde behar da).