00001
00023 #ifndef MBEDTLS_BIGNUM_H
00024 #define MBEDTLS_BIGNUM_H
00025
00026 #if !defined(MBEDTLS_CONFIG_FILE)
00027 #include "config.h"
00028 #else
00029 #include MBEDTLS_CONFIG_FILE
00030 #endif
00031
00032 #include <stddef.h>
00033 #include <stdint.h>
00034
00035 #if defined(MBEDTLS_FS_IO)
00036 #include <stdio.h>
00037 #endif
00038
00039 #define MBEDTLS_ERR_MPI_FILE_IO_ERROR -0x0002
00040 #define MBEDTLS_ERR_MPI_BAD_INPUT_DATA -0x0004
00041 #define MBEDTLS_ERR_MPI_INVALID_CHARACTER -0x0006
00042 #define MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL -0x0008
00043 #define MBEDTLS_ERR_MPI_NEGATIVE_VALUE -0x000A
00044 #define MBEDTLS_ERR_MPI_DIVISION_BY_ZERO -0x000C
00045 #define MBEDTLS_ERR_MPI_NOT_ACCEPTABLE -0x000E
00046 #define MBEDTLS_ERR_MPI_ALLOC_FAILED -0x0010
00048 #define MBEDTLS_MPI_CHK(f) do { if( ( ret = f ) != 0 ) goto cleanup; } while( 0 )
00049
00050
00051
00052
00053 #define MBEDTLS_MPI_MAX_LIMBS 10000
00054
00055 #if !defined(MBEDTLS_MPI_WINDOW_SIZE)
00056
00057
00058
00059
00060
00061
00062
00063
00064
00065 #define MBEDTLS_MPI_WINDOW_SIZE 6
00066 #endif
00067
00068 #if !defined(MBEDTLS_MPI_MAX_SIZE)
00069
00070
00071
00072
00073
00074
00075
00076 #define MBEDTLS_MPI_MAX_SIZE 1024
00077 #endif
00078
00079 #define MBEDTLS_MPI_MAX_BITS ( 8 * MBEDTLS_MPI_MAX_SIZE )
00081
00082
00083
00084
00085
00086
00087
00088
00089
00090
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00092
00093
00094
00095
00096
00097
00098
00099 #define MBEDTLS_MPI_MAX_BITS_SCALE100 ( 100 * MBEDTLS_MPI_MAX_BITS )
00100 #define MBEDTLS_LN_2_DIV_LN_10_SCALE100 332
00101 #define MBEDTLS_MPI_RW_BUFFER_SIZE ( ((MBEDTLS_MPI_MAX_BITS_SCALE100 + MBEDTLS_LN_2_DIV_LN_10_SCALE100 - 1) / MBEDTLS_LN_2_DIV_LN_10_SCALE100) + 10 + 6 )
00102
00103
00104
00105
00106
00107
00108
00109 #if ( ! defined(MBEDTLS_HAVE_INT32) && \
00110 defined(_MSC_VER) && defined(_M_AMD64) )
00111 #define MBEDTLS_HAVE_INT64
00112 typedef int64_t mbedtls_mpi_sint;
00113 typedef uint64_t mbedtls_mpi_uint;
00114 #else
00115 #if ( ! defined(MBEDTLS_HAVE_INT32) && \
00116 defined(__GNUC__) && ( \
00117 defined(__amd64__) || defined(__x86_64__) || \
00118 defined(__ppc64__) || defined(__powerpc64__) || \
00119 defined(__ia64__) || defined(__alpha__) || \
00120 (defined(__sparc__) && defined(__arch64__)) || \
00121 defined(__s390x__) || defined(__mips64) ) )
00122 #define MBEDTLS_HAVE_INT64
00123 typedef int64_t mbedtls_mpi_sint;
00124 typedef uint64_t mbedtls_mpi_uint;
00125
00126 typedef unsigned int mbedtls_t_udbl __attribute__((mode(TI)));
00127 #define MBEDTLS_HAVE_UDBL
00128 #else
00129 #define MBEDTLS_HAVE_INT32
00130 typedef int32_t mbedtls_mpi_sint;
00131 typedef uint32_t mbedtls_mpi_uint;
00132 typedef uint64_t mbedtls_t_udbl;
00133 #define MBEDTLS_HAVE_UDBL
00134 #endif
00135 #endif
00136
00137 #ifdef __cplusplus
00138 extern "C" {
00139 #endif
00140
00144 typedef struct
00145 {
00146 int s;
00147 size_t n;
00148 mbedtls_mpi_uint *p;
00149 }
00150 mbedtls_mpi;
00151
00159 void mbedtls_mpi_init( mbedtls_mpi *X );
00160
00166 void mbedtls_mpi_free( mbedtls_mpi *X );
00167
00177 int mbedtls_mpi_grow( mbedtls_mpi *X, size_t nblimbs );
00178
00188 int mbedtls_mpi_shrink( mbedtls_mpi *X, size_t nblimbs );
00189
00199 int mbedtls_mpi_copy( mbedtls_mpi *X, const mbedtls_mpi *Y );
00200
00207 void mbedtls_mpi_swap( mbedtls_mpi *X, mbedtls_mpi *Y );
00208
00226 int mbedtls_mpi_safe_cond_assign( mbedtls_mpi *X, const mbedtls_mpi *Y, unsigned char assign );
00227
00245 int mbedtls_mpi_safe_cond_swap( mbedtls_mpi *X, mbedtls_mpi *Y, unsigned char assign );
00246
00256 int mbedtls_mpi_lset( mbedtls_mpi *X, mbedtls_mpi_sint z );
00257
00266 int mbedtls_mpi_get_bit( const mbedtls_mpi *X, size_t pos );
00267
00282 int mbedtls_mpi_set_bit( mbedtls_mpi *X, size_t pos, unsigned char val );
00283
00292 size_t mbedtls_mpi_lsb( const mbedtls_mpi *X );
00293
00302 size_t mbedtls_mpi_bitlen( const mbedtls_mpi *X );
00303
00309 size_t mbedtls_mpi_size( const mbedtls_mpi *X );
00310
00320 int mbedtls_mpi_read_string( mbedtls_mpi *X, int radix, const char *s );
00321
00338 int mbedtls_mpi_write_string( const mbedtls_mpi *X, int radix,
00339 char *buf, size_t buflen, size_t *olen );
00340
00341 #if defined(MBEDTLS_FS_IO)
00342
00353 int mbedtls_mpi_read_file( mbedtls_mpi *X, int radix, FILE *fin );
00354
00367 int mbedtls_mpi_write_file( const char *p, const mbedtls_mpi *X, int radix, FILE *fout );
00368 #endif
00369
00380 int mbedtls_mpi_read_binary( mbedtls_mpi *X, const unsigned char *buf, size_t buflen );
00381
00394 int mbedtls_mpi_write_binary( const mbedtls_mpi *X, unsigned char *buf, size_t buflen );
00395
00405 int mbedtls_mpi_shift_l( mbedtls_mpi *X, size_t count );
00406
00416 int mbedtls_mpi_shift_r( mbedtls_mpi *X, size_t count );
00417
00428 int mbedtls_mpi_cmp_abs( const mbedtls_mpi *X, const mbedtls_mpi *Y );
00429
00440 int mbedtls_mpi_cmp_mpi( const mbedtls_mpi *X, const mbedtls_mpi *Y );
00441
00452 int mbedtls_mpi_cmp_int( const mbedtls_mpi *X, mbedtls_mpi_sint z );
00453
00464 int mbedtls_mpi_add_abs( mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *B );
00465
00476 int mbedtls_mpi_sub_abs( mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *B );
00477
00488 int mbedtls_mpi_add_mpi( mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *B );
00489
00500 int mbedtls_mpi_sub_mpi( mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *B );
00501
00512 int mbedtls_mpi_add_int( mbedtls_mpi *X, const mbedtls_mpi *A, mbedtls_mpi_sint b );
00513
00524 int mbedtls_mpi_sub_int( mbedtls_mpi *X, const mbedtls_mpi *A, mbedtls_mpi_sint b );
00525
00536 int mbedtls_mpi_mul_mpi( mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *B );
00537
00550 int mbedtls_mpi_mul_int( mbedtls_mpi *X, const mbedtls_mpi *A, mbedtls_mpi_uint b );
00551
00566 int mbedtls_mpi_div_mpi( mbedtls_mpi *Q, mbedtls_mpi *R, const mbedtls_mpi *A, const mbedtls_mpi *B );
00567
00582 int mbedtls_mpi_div_int( mbedtls_mpi *Q, mbedtls_mpi *R, const mbedtls_mpi *A, mbedtls_mpi_sint b );
00583
00596 int mbedtls_mpi_mod_mpi( mbedtls_mpi *R, const mbedtls_mpi *A, const mbedtls_mpi *B );
00597
00610 int mbedtls_mpi_mod_int( mbedtls_mpi_uint *r, const mbedtls_mpi *A, mbedtls_mpi_sint b );
00611
00630 int mbedtls_mpi_exp_mod( mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *E, const mbedtls_mpi *N, mbedtls_mpi *_RR );
00631
00643 int mbedtls_mpi_fill_random( mbedtls_mpi *X, size_t size,
00644 int (*f_rng)(void *, unsigned char *, size_t),
00645 void *p_rng );
00646
00657 int mbedtls_mpi_gcd( mbedtls_mpi *G, const mbedtls_mpi *A, const mbedtls_mpi *B );
00658
00671 int mbedtls_mpi_inv_mod( mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *N );
00672
00684 int mbedtls_mpi_is_prime( const mbedtls_mpi *X,
00685 int (*f_rng)(void *, unsigned char *, size_t),
00686 void *p_rng );
00687
00702 int mbedtls_mpi_gen_prime( mbedtls_mpi *X, size_t nbits, int dh_flag,
00703 int (*f_rng)(void *, unsigned char *, size_t),
00704 void *p_rng );
00705
00711 int mbedtls_mpi_self_test( int verbose );
00712
00713 #ifdef __cplusplus
00714 }
00715 #endif
00716
00717 #endif