diff options
Diffstat (limited to 'src/pluto/gcryptfix.h')
| -rw-r--r-- | src/pluto/gcryptfix.h | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/src/pluto/gcryptfix.h b/src/pluto/gcryptfix.h new file mode 100644 index 000000000..637ecbc8d --- /dev/null +++ b/src/pluto/gcryptfix.h @@ -0,0 +1,111 @@ +/* Definitions to make gcrypt routines feel at home in Pluto. + * Copyright (C) 1999 D. Hugh Redelmeier. + * + * This program 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. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program 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. + * + * RCSID $Id: gcryptfix.h,v 1.1 2004/03/15 20:35:28 as Exp $ + */ + +#define DBG_CIPHER 1 /* some day we'll do this right */ + +/* Simulate MPI routines with gmp routines. + * gmp's MP_INT is a stuct; MPI's MPI is a pointer to an analogous struct. + * gmp's mpz_t is an array of one of these structs to enable magic pointer + * conversions to make the notation convenient (but confusing). + */ +typedef u_char byte; +typedef MP_INT *MPI; + +#define BITS_PER_MPI_LIMB mp_bits_per_limb + +extern MPI mpi_alloc( unsigned nlimbs ); +extern MPI mpi_alloc_secure( unsigned nlimbs ); +#define mpi_alloc_like(n) mpi_alloc(mpi_get_nlimbs(n)) +extern MPI mpi_alloc_set_ui( unsigned long u); +#define mpi_set_ui(w, u) mpz_set_ui(w, u) +#define mpi_set(w, u) mpz_set(w, u) +extern void mpi_free( MPI a ); +extern MPI mpi_copy( MPI a ); +extern unsigned mpi_get_nbits( MPI a ); +#define mpi_get_nlimbs(a) ((a)->_mp_alloc) /* dirty, but useless */ +extern void mpi_set_buffer( MPI a, const u_char *buffer, unsigned nbytes, int sign ); +extern unsigned mpi_trailing_zeros( MPI a ); +extern int mpi_test_bit( MPI a, unsigned n ); +extern void mpi_set_bit( MPI a, unsigned n ); +extern void mpi_clear_bit( MPI a, unsigned n ); +extern void mpi_clear_highbit( MPI a, unsigned n ); +extern void mpi_set_highbit( MPI a, unsigned n ); +#define mpi_cmp_ui(u, v) mpz_cmp_ui((u), (v)) +#define mpi_cmp(u, v) mpz_cmp((u), (v)) +#define mpi_is_neg(n) (mpz_sgn(n) < 0) +#define mpi_add(w, u, v) mpz_add((w), (u), (v)) +#define mpi_add_ui(w, u, v) mpz_add_ui((w), (u), (v)) +#define mpi_sub_ui(w, u, v) mpz_sub_ui((w), (u), (v)) +#define mpi_subm( w, u, v, m) { mpz_sub( (w), (u), (v)) ; mpz_fdiv_r((w), (w), (m)); } +#define mpi_mul( w, u, v) mpz_mul( (w), (u), (v)) +#define mpi_mul_ui( w, u, v) mpz_mul_ui( (w), (u), (v)) +#define mpi_mulm( w, u, v, m) { mpz_mul( (w), (u), (v)) ; mpz_fdiv_r((w), (w), (m)); } +#define mpi_fdiv_q(quot, dividend, divisor) mpz_fdiv_q((quot), (dividend), (divisor)) +#define mpi_fdiv_r( rem, dividend, divisor ) mpz_fdiv_r( (rem), (dividend), (divisor) ) +#define mpi_fdiv_r_ui( rem, dividend, divisor ) mpz_fdiv_r_ui( (rem), (dividend), (divisor) ) +#define mpi_tdiv_q_2exp( w, u, count ) mpz_tdiv_q_2exp( (w), (u), (count) ) +extern int mpi_divisible_ui(MPI dividend, ulong divisor ); +#define mpi_powm( res, base, exp, mod) mpz_powm( res, base, exp, mod) +extern void mpi_mulpowm( MPI res, MPI *basearray, MPI *exparray, MPI mod); +#define mpi_gcd( g, a, b ) ( mpz_gcd( (g), (a), (b) ), !mpi_cmp_ui( (g), 1)) +#define mpi_invm( x, a, n ) mpz_invert( (x), (a), (n) ) + +#ifdef DEBUG +# define log_debug(f...) DBG_log(f) +#else +# define log_debug(f...) do ; while (0) /* do nothing, carefully */ +#endif +#define log_fatal(f...) exit_log(f) /* overreaction? */ +extern void log_mpidump( const char *text, MPI a ); + +#define assert(p) passert(p) +#define BUG() passert(FALSE) + +#define m_alloc_ptrs_clear(pp, n) { \ + int c = (n); \ + (pp) = alloc_bytes((n) * sizeof(*(pp)), "m_alloc_ptrs_clear"); \ + while (c > 0) (pp)[--c] = NULL; \ + } + +extern u_char *get_random_bits(size_t nbits, int level, int secure); +#define m_alloc(sz) alloc_bytes((sz), "m_alloc") /* not initialized */ +#define m_free(n) pfree(n) /* always freeing something from get_random_bits */ + +/* declarations from gnupg-1.0.0/include/cipher.h */ +/*-- primegen.c --*/ +MPI generate_secret_prime( unsigned nbits ); +MPI generate_public_prime( unsigned nbits ); +MPI generate_elg_prime( int mode, unsigned pbits, unsigned qbits, + MPI g, MPI **factors ); + +#define PUBKEY_ALGO_ELGAMAL_E 16 /* encrypt only ElGamal (but not for v3)*/ +#define PUBKEY_ALGO_DSA 17 +#define PUBKEY_ALGO_ELGAMAL 20 /* sign and encrypt elgamal */ + +#define is_ELGAMAL(a) ((a)==PUBKEY_ALGO_ELGAMAL || (a)==PUBKEY_ALGO_ELGAMAL_E) + +#define PUBKEY_USAGE_SIG 1 /* key is good for signatures */ +#define PUBKEY_USAGE_ENC 2 /* key is good for encryption */ + +/* from gnupg-1.0.0/include/errors.h */ + +#define G10ERR_PUBKEY_ALGO 4 /* Unknown pubkey algorithm */ +#define G10ERR_BAD_SECKEY 7 /* Bad secret key */ +#define G10ERR_BAD_SIGN 8 /* Bad signature */ +#define G10ERR_BAD_MPI 30 + +/*-- smallprime.c --*/ +extern ushort small_prime_numbers[]; |