60 lines
1.8 KiB
C
60 lines
1.8 KiB
C
/*
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* Copyright (C) 2006-2008 Martin Willi
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* HSR Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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/**
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* @defgroup fips_prf fips_prf
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* @{ @ingroup fips_prf_p
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*/
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#ifndef FIPS_PRF_H_
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#define FIPS_PRF_H_
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typedef struct fips_prf_t fips_prf_t;
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#include <library.h>
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#include <crypto/prfs/prf.h>
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#include <crypto/hashers/hasher.h>
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/**
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* Implementation of prf_t using the FIPS 186-2-change1 standard.
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*
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* FIPS defines a "General Purpose Random Number Generator" (Revised
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* Algorithm for Computing m values of x (Appendix 3.1 of FIPS 186-2)). This
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* implementation is not intended for private key generation and therefore does
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* not include the "mod q" operation (see FIPS 186-2-change1 p74).
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* The FIPS PRF is stateful; the key changes every time when bytes are acquired.
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*/
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struct fips_prf_t {
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/**
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* Generic prf_t interface for this fips_prf_t class.
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*/
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prf_t prf_interface;
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};
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/**
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* Creates a new fips_prf_t object.
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*
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* FIPS 186-2 defines G() functions used in the PRF function. It can
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* be implemented either based on SHA1 or DES.
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* The G() function is selected using the algo parameter.
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*
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* @param algo specific FIPS PRF implementation, specifies G() function
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* @return fips_prf_t object, NULL if not supported.
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*/
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fips_prf_t *fips_prf_create(pseudo_random_function_t algo);
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#endif /** FIPS_PRF_H_ @}*/
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