Key derivation functions to enhance security

Details Key derivation functions to enhance security Key derivation functions to enhance security

2004-08-12

2009-08-18

Parthasarathy, Pramila (Department: 2136)

Cryptography

Key management

Having particular key generator

C380S277000

Reexamination Certificate

active

07577250

ABSTRACT:
Key derivation algorithms are disclosed. In one key derivation application, a segment of the master key is hashed. Two numbers of derived from another segment of the master key. A universal hash function, using the two numbers, is applied to the result of the hash, from which bits are selected as the derived key. In another embodiment, an encoded counter is combined with segments of the master key. The result is then hashed, from which bits are selected as the derived key.

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