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Public key infrastructure (PKI) is an arrangement which provides for third-party vetting of, and vouching for, user identities. It also allows binding of public keys to users. This is usually carried out by software at a central location together with other coordinated software at distributed locations. The public keys are typically in Certificates.

Some experts feel that a web of trust (Wikipedia:web of trust) is more fault-tolerant than a centralized PKI.


Such infrastructure can be used to further build functionalities enabling e-government services.

External Links

PKI at Wikipedia

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