A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Hash-Based Key Derivation
Author(s) : Q. Dang, T. Polk
Filename : draft-dang-nistkdf-00.txt
Pages : 15
Date : 2005-10-14
This draft specifies a Key Derivation Function (KDF) used to derive
secret symmetric keying material for participating parties from a
secret value and application specific information. The KDF is based
on concatenation and a secure hash function. The length in bits of
secret keying material that can be generated by the KDF is limited to
(2**32 - 1) times the length in bits of the output block of the hash
function. The derived keying material is a concatenation of the
outputs of the hashing operations. Inputs to the hash function are
incremented counter values, one for each separate hashing operation;
the secret value; an optional algorithm identifier; identifiers for
the participating parties, and optional protocol specific
information.
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