In this article I will present you with an overview of how the Public Key Infrastructure (PKI).

If you use Active Directory technology in Windows NT, every user is also created associated with it a pair Key: Public key and Private key. There are also several applications to create this key pair.

Key pair is generated randomly [...]

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IPSec (IP security), including a system of protocols for the secure transmission of information based on Internet Protocol (IP). Including authentication and / or encryption (authenticating and / or Encrypting) for each IP packet (IP packet) in the transmission of information. IPSec also includes the protocol to provide encryption and authentication.
1. Overview:
IPSec protocol to work [...]

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Internet Protocol Security (IPSec) provides enhanced security features such as better encryption algorithms and more comprehensive authentication.

IPSec has two encryption modes: tunnel and transport. Tunnel encrypts the header and the payload of each packet while transport only encrypts the payload. Only systems that are IPSec compliant can take advantage of this protocol. Also, all devices [...]

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