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Title : Using HMAC-SHA-256 With IPsec
Author(s) : S. Kelly, S. Frankel
Filename : draft-kelly-ipsec-ciph-sha2-00.txt
Pages : 14
Date : 2006-9-29
This specification describes the use of the SHA-256 algorithm in
conjunction with HMAC as a data origin authentication and integrity
verification mechanism for the IPsec AH, ESP, and IKEv2 protocols,
and also as a PRF for IKEv2. Two output truncation lengths are
specified for data origin authentication and integrity verification
usage, with the corresponding algorithms designated as HMAC-SHA-256-
128 and HMAC-SHA-256-192. No truncation is specified for PRF usage,
and the resulting algorithm is designated as HMAC-SHA-PRF-256.
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