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THE PROBLEM OF DISTRIBUTING PUBLIC KEYS RELIABLY
IS SOLVED BY HAVING EVERYONE REGISTER WITH
ORGANIZATIONS CALLED "CERTIFYING AUTHORITIES."
- IF SOMEONE
WANTS TO USE PUBLIC KEY ENCRYPTION TO COMMUNICATE WITH OTHERS
ON THE INTERNET, HE/SHE/IT MUST FIRST REGISTER WITH SOME
"C.A.'
- THE "REGISTRANT" PROVIDE THE C.A. WITH ITS
PUBLIC KEY AND DOCUMENTS SUBSTANTIATING ITS
IDENTITY.
- HOPEFULLY, THE C.A. INVESTIGATES THE
AUTHENTICITY OF EACH REGISTRANT.
- THE C.A. PROVIDES SUCCESSFUL REGISTRANTS WITH
COPIES OF THEIR OWN PUBLIC KEYS SIGNED USING THE C.A.
PRIVATE KEY.
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