| Publisher | Core Competence | ||
|---|---|---|---|
| Format | HTML | Date added | 14 Aug 2003 |
| Topics | VPNs, PKI | ||
| Downloads | 5 | ||
Many of today's virtual private networks (VPNs) exist without the support of a public key infrastructure (PKI). VPN endpoints — be they security gateways or clients — authenticate each other when establishing IPsec tunnels. At its simplest, this can be accomplished by configuring the same shared secret — essentially a pair-wise password — at both tunnel endpoints. This rudimentary approach works fine on a small scale, but becomes unwieldy in larger VPNs, especially large remote access VPNs with hundreds or thousands of clients.
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