IPsec (Internet Protocol Security) is a protocol suite for securing Internet Protocol (IP) communications by authenticating and encrypting each IP packet of a data stream. It is a successor of the ISO standard Network Layer Security Protocol (NLSP).
Internet Protocol Security (IPsec) is a framework of open standards that supports network level peer authentication, data origin authentication, data integrity, data confidentiality (encryption), and replay protection.
IPsec is officially specified by the Internet Engineering Task Force (IETF) in a series of Request for Comments addressing various components and extensions, including the official capitalization style of the term.
IPsec is an optional extension in IPv4 but in IPv6 it is mandatory. This is because IPsec was developed in conjuction with IPv6. However, because of the slow deployment of IPv6, IPsec is most commonly used to secure IPv6 traffic.
The cryptographic algorithms defined for use with IPsec are the following:
Internet Protocol Security (IPsec) is a framework of open standards that supports network level peer authentication, data origin authentication, data integrity, data confidentiality (encryption), and replay protection.
IPsec is officially specified by the Internet Engineering Task Force (IETF) in a series of Request for Comments addressing various components and extensions, including the official capitalization style of the term.
IPsec is an optional extension in IPv4 but in IPv6 it is mandatory. This is because IPsec was developed in conjuction with IPv6. However, because of the slow deployment of IPv6, IPsec is most commonly used to secure IPv6 traffic.
The cryptographic algorithms defined for use with IPsec are the following:
1. HMAC-SHA1
for integrity protection and authenticity.
2. TripleDES-CBS
for confidentiality
3. AES-CBC
for confidentiality
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