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Diffstat (limited to 'cipher/dsa.h')
| -rw-r--r-- | cipher/dsa.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/cipher/dsa.h b/cipher/dsa.h new file mode 100644 index 000000000..7ed38a4b3 --- /dev/null +++ b/cipher/dsa.h @@ -0,0 +1,49 @@ +/* dsa.h - DSA signature scheme + * Copyright (c) 1997 by Werner Koch (dd9jn) + * + * This file is part of G10. + * + * G10 is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * G10 is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + */ +#ifndef G10_DSA_H +#define G10_DSA_H + +#include "mpi.h" + +typedef struct { + MPI p; /* prime */ + MPI q; /* group order */ + MPI g; /* group generator */ + MPI y; /* g^x mod p */ +} DSA_public_key; + + +typedef struct { + MPI p; /* prime */ + MPI q; /* group order */ + MPI g; /* group generator */ + MPI y; /* g^x mod p */ + MPI x; /* secret exponent */ +} DSA_secret_key; + + +void dsa_free_public_key( DSA_public_key *pk ); +void dsa_free_secret_key( DSA_secret_key *sk ); +void dsa_generate( DSA_public_key *pk, DSA_secret_key *sk, unsigned nbits ); +int dsa_check_secret_key( DSA_secret_key *sk ); +void dsa_sign(MPI a, MPI b, MPI input, DSA_secret_key *skey); +int dsa_verify(MPI a, MPI b, MPI input, DSA_public_key *pkey); + +#endif /*G10_DSA_H*/ |