See ChangeLog: Wed Dec 8 21:58:32 CET 1999 Werner Koch

1 files changed, 162 insertions, 0 deletions

diff --git a/src/mpi.h b/src/mpi.h
new file mode 100644
index 00000000..f92a1f8b
--- /dev/null
+++ b/src/mpi.h
@@ -0,0 +1,162 @@
+/* mpi.h  -  Multi Precision Integers
+ *	Copyright (C) 1994, 1996, 1998 Free Software Foundation, Inc.
+ *
+ * This file is part of GNUPG.
+ *
+ * GNUPG 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.
+ *
+ * GNUPG 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
+ *
+ * Note: This code is heavily based on the GNU MP Library.
+ *	 Actually it's the same code with only minor changes in the
+ *	 way the data is stored; this is to support the abstraction
+ *	 of an optional secure memory allocation which may be used
+ *	 to avoid revealing of sensitive data due to paging etc.
+ *	 The GNU MP Library itself is published under the LGPL;
+ *	 however I decided to publish this code under the plain GPL.
+ */
+
+#ifndef G10_MPI_H
+#define G10_MPI_H
+
+#include <stdio.h>
+#include "types.h"
+#include "memory.h"
+
+
+#define DBG_MPI     g10_get_debug_flag( 2 );
+
+#define BITS_PER_MPI_LIMB    (8*SIZEOF_UNSIGNED_LONG)
+#define BYTES_PER_MPI_LIMB   SIZEOF_UNSIGNED_LONG
+typedef unsigned long int mpi_limb_t;
+typedef   signed long int mpi_limb_signed_t;
+
+struct gcry_mpi {
+    int alloced;    /* array size (# of allocated limbs) */
+    int nlimbs;     /* number of valid limbs */
+    int sign;	    /* indicates a negative number and is used for opaque
+		     * MPIs to store the length */
+    unsigned flags; /* bit 0: array must be allocated in secure memory space */
+		    /* bit 2: the limb is a pointer to some m_alloced data */
+    mpi_limb_t *d;  /* array with the limbs */
+};
+
+#ifndef DID_MPI_TYPEDEF
+  typedef struct gcry_mpi *MPI;
+  #define DID_MPI_TYPEDEF
+#endif
+
+#define MPI_NULL NULL
+
+#define mpi_get_nlimbs(a)     ((a)->nlimbs)
+#define mpi_is_neg(a)	      ((a)->sign)
+
+/*-- mpiutil.c --*/
+
+#ifdef M_DEBUG
+  #define mpi_alloc(n)	mpi_debug_alloc((n), M_DBGINFO( __LINE__ ) )
+  #define mpi_alloc_secure(n)  mpi_debug_alloc_secure((n), M_DBGINFO( __LINE__ ) )
+  #define mpi_free(a)	mpi_debug_free((a), M_DBGINFO(__LINE__) )
+  #define mpi_resize(a,b) mpi_debug_resize((a),(b), M_DBGINFO(__LINE__) )
+  #define mpi_copy(a)	  mpi_debug_copy((a), M_DBGINFO(__LINE__) )
+  MPI mpi_debug_alloc( unsigned nlimbs, const char *info );
+  MPI mpi_debug_alloc_secure( unsigned nlimbs, const char *info );
+  void mpi_debug_free( MPI a, const char *info );
+  void mpi_debug_resize( MPI a, unsigned nlimbs, const char *info );
+  MPI  mpi_debug_copy( MPI a, const char *info	);
+#else
+  MPI mpi_alloc( unsigned nlimbs );
+  MPI mpi_alloc_secure( unsigned nlimbs );
+  void mpi_free( MPI a );
+  void mpi_resize( MPI a, unsigned nlimbs );
+  MPI  mpi_copy( MPI a );
+#endif
+#define mpi_is_opaque(a) ((a) && ((a)->flags&4))
+MPI mpi_set_opaque( MPI a, void *p, unsigned int len );
+void *mpi_get_opaque( MPI a, unsigned int *len );
+#define mpi_is_secure(a) ((a) && ((a)->flags&1))
+void mpi_set_secure( MPI a );
+void mpi_clear( MPI a );
+MPI  mpi_alloc_like( MPI a );
+void mpi_set( MPI w, MPI u);
+void mpi_set_ui( MPI w, ulong u);
+MPI  mpi_alloc_set_ui( unsigned long u);
+void mpi_m_check( MPI a );
+void mpi_swap( MPI a, MPI b);
+
+/*-- mpicoder.c --*/
+MPI mpi_read_from_buffer(byte *buffer, unsigned *ret_nread, int secure);
+int mpi_fromstr(MPI val, const char *str);
+int mpi_print( FILE *fp, MPI a, int mode );
+void g10_log_mpidump( const char *text, MPI a );
+u32 mpi_get_keyid( MPI a, u32 *keyid );
+byte *mpi_get_buffer( MPI a, unsigned *nbytes, int *sign );
+byte *mpi_get_secure_buffer( MPI a, unsigned *nbytes, int *sign );
+void  mpi_set_buffer( MPI a, const byte *buffer, unsigned nbytes, int sign );
+
+#define log_mpidump g10_log_mpidump
+
+/*-- mpi-add.c --*/
+void mpi_add_ui(MPI w, MPI u, ulong v );
+void mpi_add(MPI w, MPI u, MPI v);
+void mpi_addm(MPI w, MPI u, MPI v, MPI m);
+void mpi_sub_ui(MPI w, MPI u, ulong v );
+void mpi_sub( MPI w, MPI u, MPI v);
+void mpi_subm( MPI w, MPI u, MPI v, MPI m);
+
+/*-- mpi-mul.c --*/
+void mpi_mul_ui(MPI w, MPI u, ulong v );
+void mpi_mul_2exp( MPI w, MPI u, ulong cnt);
+void mpi_mul( MPI w, MPI u, MPI v);
+void mpi_mulm( MPI w, MPI u, MPI v, MPI m);
+
+/*-- mpi-div.c --*/
+ulong mpi_fdiv_r_ui( MPI rem, MPI dividend, ulong divisor );
+void  mpi_fdiv_r( MPI rem, MPI dividend, MPI divisor );
+void  mpi_fdiv_q( MPI quot, MPI dividend, MPI divisor );
+void  mpi_fdiv_qr( MPI quot, MPI rem, MPI dividend, MPI divisor );
+void  mpi_tdiv_r( MPI rem, MPI num, MPI den);
+void  mpi_tdiv_qr( MPI quot, MPI rem, MPI num, MPI den);
+void  mpi_tdiv_q_2exp( MPI w, MPI u, unsigned count );
+int   mpi_divisible_ui(MPI dividend, ulong divisor );
+
+/*-- mpi-gcd.c --*/
+int mpi_gcd( MPI g, MPI a, MPI b );
+
+/*-- mpi-mpow.c --*/
+void mpi_mulpowm( MPI res, MPI *basearray, MPI *exparray, MPI mod);
+
+/*-- mpi-cmp.c --*/
+int mpi_cmp_ui( MPI u, ulong v );
+int mpi_cmp( MPI u, MPI v );
+
+/*-- mpi-scan.c --*/
+int mpi_getbyte( MPI a, unsigned idx );
+void mpi_putbyte( MPI a, unsigned idx, int value );
+unsigned mpi_trailing_zeros( MPI a );
+
+/*-- mpi-bit.c --*/
+void mpi_normalize( MPI a );
+unsigned int mpi_get_nbits( MPI a );
+int  mpi_test_bit( MPI a, unsigned n );
+void mpi_set_bit( MPI a, unsigned n );
+void mpi_set_highbit( MPI a, unsigned n );
+void mpi_clear_highbit( MPI a, unsigned n );
+void mpi_clear_bit( MPI a, unsigned n );
+void mpi_rshift( MPI x, MPI a, unsigned n );
+
+/*-- mpi-inv.c --*/
+void mpi_invm( MPI x, MPI u, MPI v );
+
+
+#endif /*G10_MPI_H*/