资料来源 : Free On-Line Dictionary of Computing

Public Key Infrastructure
     
         (PKI) A system of {public key
        encryption} using {digital certificates} from {Certificate
        Authorities} and other registration authorities that verify
        and authenticate the validity of each party involved in an
        electronic transaction.
     
        PKIs are currently evolving and there is no single PKI nor
        even a single agreed-upon standard for setting up a PKI.
        However, nearly everyone agrees that reliable PKIs are
        necessary before {electronic commerce} can become widespread.
     
        {US DOD PKI (http://www-pki.itsi.disa.mil/)}.
     
        {US NIST PKI (http://csrc.ncsl.nist.gov/pki/)}.
     
        {IETF PKIX Working Group (http://www.imc.org/ietf-pkix/)}.
     
        (1999-11-30)