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50 lines
1.6 KiB
C
50 lines
1.6 KiB
C
/* dsa.h - DSA signature scheme
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* Copyright (C) 1998 Free Software Foundation, Inc.
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*
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* This file is part of GNUPG.
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*
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* GNUPG is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* GNUPG is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#ifndef G10_DSA_H
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#define G10_DSA_H
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#include "mpi.h"
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typedef struct {
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MPI p; /* prime */
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MPI q; /* group order */
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MPI g; /* group generator */
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MPI y; /* g^x mod p */
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} DSA_public_key;
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typedef struct {
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MPI p; /* prime */
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MPI q; /* group order */
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MPI g; /* group generator */
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MPI y; /* g^x mod p */
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MPI x; /* secret exponent */
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} DSA_secret_key;
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void dsa_free_public_key( DSA_public_key *pk );
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void dsa_free_secret_key( DSA_secret_key *sk );
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void dsa_generate( DSA_public_key *pk, DSA_secret_key *sk, unsigned nbits );
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int dsa_check_secret_key( DSA_secret_key *sk );
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void dsa_sign(MPI r, MPI s, MPI input, DSA_secret_key *skey);
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int dsa_verify(MPI r, MPI s, MPI input, DSA_public_key *pkey);
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#endif /*G10_DSA_H*/
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