SEND meaning in Computing ?

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Answer:

What is Secure Neighbor Discovery mean?

The Secure Neighbor Discovery (SEND) protocol is a security extension of the Neighbor Discovery Protocol (NDP) in IPv6 defined in RFC 3971 and updated by RFC 6494.

The Neighbor Discovery Protocol (NDP) is responsible in IPv6 for discovery of other network nodes on the local link, to determine the link layer addresses of other nodes, and to find available routers, and maintain reachability information about the paths to other active neighbor nodes (RFC 4861). NDP is insecure and susceptible to malicious interference. It is the intent of SEND to provide an alternate mechanism for securing NDP with a cryptographic method that is independent of IPsec, the original and inherent method of securing IPv6 communications.

SEND uses Cryptographically Generated Addresses (CGA) and other new NDP options for the ICMPv6 packet types used in NDP.

SEND was updated to use the Resource Public Key Infrastructure (RPKI) by RFC 6494 and RFC 6495 which define use of a SEND Certificate Profile utilizing a modified RFC 6487 RPKI Certificate Profile which must include a single RFC 3779 IP Address Delegation extension.

There have been concerns with algorithm agility vis-à-vis attacks on hash functions used by SEND expressed in RFC 6273, as CGA currently uses the SHA-1 hash algorithm and PKIX certificates and does not provide support for alternative hash algorithms.

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Posted on 31 Dec 2024, this text provides information on Miscellaneous in Computing related to Computing. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.

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Miscellaneous in Computing
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Miscellaneous in Computing


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