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IPsec


 

IPsec (IP security) is a standard for securing Internet Protocol (IP) communications by encrypting and/or authenticating all IP packets. IPsec provides security at the network layer.

Related Topics:
Internet Protocol - Encrypting - Authenticating - Network layer

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IPsec is a set of cryptographic protocols for (1) securing packet flows and (2) key exchange. Of the former, there are two: Encapsulating Security Payload (ESP) provides authentication, data confidentiality and message integrity; Authentication Header (AH) provides authentication and message integrity, but does not offer confidentiality. Originally AH was only used for integrity and ESP was used only for encryption; authentication functionality was added subsequently to ESP. Currently only one key exchange protocol is defined, the IKE (Internet Key Exchange) protocol.

Related Topics:
Cryptographic protocol - Key exchange - Authentication - Confidentiality - Message integrity - Key exchange - IKE

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~ Table of Content ~

Introduction
Current status as a standard
Design intent
IPsec compared to other Internet security protocols
Technical details
Implementations
See also
Overview of IPsec-related RFCs
External links

 

 

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