===== Internet Protocol Security (IPsec) =====
[[dido:public:ra:xapend:xapend.a_glossary:start| Return to Glossary ]]

**Internet Protocol Security (IPsec)** is a suite of protocols and algorithms for securing data transmitted over the internet or any public network. The [[dido:public:ra:xapend:xapend.b_stds:tech:ietf:start]], developed the IPsec protocols in the mid-1990s to provide security at the [[dido:public:ra:xapend:xapend.a_glossary:i:ip]] layer through authentication and encryption of IP network packets.

IPsec originally defined two protocols for securing IP packets: Authentication Header (AH) and Encapsulating Security Payload (ESP). The former provides data integrity and anti-replay services, and the latter encrypts and authenticates data.

Source: [[https://searchsecurity.techtarget.com/definition/IPsec-Internet-Protocol-Security ]]


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