diff options
Diffstat (limited to 'plugins/MirOTR/Libgcrypt/src/mpi.h')
| -rw-r--r-- | plugins/MirOTR/Libgcrypt/src/mpi.h | 201 |
1 files changed, 123 insertions, 78 deletions
diff --git a/plugins/MirOTR/Libgcrypt/src/mpi.h b/plugins/MirOTR/Libgcrypt/src/mpi.h index f630c3f6f3..bb3c26d0f4 100644 --- a/plugins/MirOTR/Libgcrypt/src/mpi.h +++ b/plugins/MirOTR/Libgcrypt/src/mpi.h @@ -30,8 +30,9 @@ #include <config.h> #include <stdio.h> +#include <string.h> + #include "types.h" -#include "memory.h" #include "../mpi/mpi-asm-defs.h" #include "g10lib.h" @@ -61,21 +62,23 @@ #define DBG_MPI _gcry_get_debug_flag( 2 ); -struct gcry_mpi +struct gcry_mpi { int alloced; /* Array size (# of allocated limbs). */ int nlimbs; /* Number of valid limbs. */ int sign; /* Indicates a negative number and is also used for opaque MPIs to store the length. */ unsigned int flags; /* Bit 0: Array to be allocated in secure memory space.*/ - /* Bit 2: the limb is a pointer to some m_alloced data.*/ + /* Bit 2: The limb is a pointer to some m_alloced data.*/ + /* Bit 4: Immutable MPI - the MPI may not be modified. */ + /* Bit 5: Constant MPI - the MPI will not be freed. */ mpi_limb_t *d; /* Array with the limbs */ }; #define MPI_NULL NULL #define mpi_get_nlimbs(a) ((a)->nlimbs) -#define mpi_is_neg(a) ((a)->sign) +#define mpi_has_sign(a) ((a)->sign) /*-- mpiutil.c --*/ @@ -103,53 +106,69 @@ struct gcry_mpi gcry_mpi_t _gcry_mpi_copy( gcry_mpi_t a ); #endif -#define mpi_is_opaque(a) ((a) && ((a)->flags&4)) -#define mpi_is_secure(a) ((a) && ((a)->flags&1)) +void _gcry_mpi_immutable_failed (void); +#define mpi_immutable_failed() _gcry_mpi_immutable_failed () + +#define mpi_is_const(a) ((a) && ((a)->flags&32)) +#define mpi_is_immutable(a) ((a) && ((a)->flags&16)) +#define mpi_is_opaque(a) ((a) && ((a)->flags&4)) +#define mpi_is_secure(a) ((a) && ((a)->flags&1)) #define mpi_clear(a) _gcry_mpi_clear ((a)) -#define mpi_alloc_like(a) _gcry_mpi_alloc_like((a)) -#define mpi_set(a,b) _gcry_mpi_set ((a),(b)) -#define mpi_set_ui(a,b) _gcry_mpi_set_ui ((a),(b)) -#define mpi_get_ui(a,b) _gcry_mpi_get_ui ((a),(b)) +#define mpi_alloc_like(a) _gcry_mpi_alloc_like((a)) + #define mpi_alloc_set_ui(a) _gcry_mpi_alloc_set_ui ((a)) -#define mpi_m_check(a) _gcry_mpi_m_check ((a)) -#define mpi_swap(a,b) _gcry_mpi_swap ((a),(b)) -#define mpi_new(n) _gcry_mpi_new ((n)) -#define mpi_snew(n) _gcry_mpi_snew ((n)) +#define mpi_m_check(a) _gcry_mpi_m_check ((a)) +#define mpi_const(n) _gcry_mpi_const ((n)) +#define mpi_set_cond(w,u,set) _gcry_mpi_set_cond ((w),(u),(set)) void _gcry_mpi_clear( gcry_mpi_t a ); +gcry_mpi_t _gcry_mpi_set_cond (gcry_mpi_t w, const gcry_mpi_t u, + unsigned long swap); gcry_mpi_t _gcry_mpi_alloc_like( gcry_mpi_t a ); gcry_mpi_t _gcry_mpi_alloc_set_ui( unsigned long u); -gcry_err_code_t _gcry_mpi_get_ui (gcry_mpi_t w, ulong *u); void _gcry_mpi_m_check( gcry_mpi_t a ); void _gcry_mpi_swap( gcry_mpi_t a, gcry_mpi_t b); gcry_mpi_t _gcry_mpi_new (unsigned int nbits); gcry_mpi_t _gcry_mpi_snew (unsigned int nbits); +gcry_mpi_t _gcry_mpi_set_opaque_copy (gcry_mpi_t a, + const void *p, unsigned int nbits); +void *_gcry_mpi_get_opaque_copy (gcry_mpi_t a, unsigned int *nbits); +int _gcry_mpi_is_neg (gcry_mpi_t a); +void _gcry_mpi_neg (gcry_mpi_t w, gcry_mpi_t u); +void _gcry_mpi_abs (gcry_mpi_t w); + +/* Constants used to return constant MPIs. See _gcry_mpi_init if you + want to add more constants. */ +#define MPI_NUMBER_OF_CONSTANTS 6 +enum gcry_mpi_constants + { + MPI_C_ZERO, + MPI_C_ONE, + MPI_C_TWO, + MPI_C_THREE, + MPI_C_FOUR, + MPI_C_EIGHT + }; + + +gcry_mpi_t _gcry_mpi_const (enum gcry_mpi_constants no); + /*-- mpicoder.c --*/ void _gcry_log_mpidump( const char *text, gcry_mpi_t a ); u32 _gcry_mpi_get_keyid( gcry_mpi_t a, u32 *keyid ); -byte *_gcry_mpi_get_buffer( gcry_mpi_t a, unsigned *nbytes, int *sign ); -byte *_gcry_mpi_get_secure_buffer( gcry_mpi_t a, unsigned *nbytes, int *sign ); -void _gcry_mpi_set_buffer ( gcry_mpi_t a, const void *buffer, +byte *_gcry_mpi_get_buffer (gcry_mpi_t a, unsigned int fill_le, + unsigned int *r_nbytes, int *sign); +byte *_gcry_mpi_get_buffer_extra (gcry_mpi_t a, unsigned int fill_le, + int extraalloc, + unsigned int *r_nbytes, int *sign); +byte *_gcry_mpi_get_secure_buffer (gcry_mpi_t a, unsigned int fill_le, + unsigned *r_nbytes, int *sign); +void _gcry_mpi_set_buffer ( gcry_mpi_t a, const void *buffer, unsigned int nbytes, int sign ); - -#define log_mpidump _gcry_log_mpidump - -/*-- mpi-add.c --*/ -#define mpi_add_ui(w,u,v) gcry_mpi_add_ui((w),(u),(v)) -#define mpi_add(w,u,v) gcry_mpi_add ((w),(u),(v)) -#define mpi_addm(w,u,v,m) gcry_mpi_addm ((w),(u),(v),(m)) -#define mpi_sub_ui(w,u,v) gcry_mpi_sub_ui ((w),(u),(v)) -#define mpi_sub(w,u,v) gcry_mpi_sub ((w),(u),(v)) -#define mpi_subm(w,u,v,m) gcry_mpi_subm ((w),(u),(v),(m)) - - -/*-- mpi-mul.c --*/ -#define mpi_mul_ui(w,u,v) gcry_mpi_mul_ui ((w),(u),(v)) -#define mpi_mul_2exp(w,u,v) gcry_mpi_mul_2exp ((w),(u),(v)) -#define mpi_mul(w,u,v) gcry_mpi_mul ((w),(u),(v)) -#define mpi_mulm(w,u,v,m) gcry_mpi_mulm ((w),(u),(v),(m)) - +gpg_err_code_t _gcry_mpi_to_octet_string (unsigned char **r_frame, + void *space, + gcry_mpi_t value, size_t nbytes); /*-- mpi-div.c --*/ #define mpi_fdiv_r_ui(a,b,c) _gcry_mpi_fdiv_r_ui((a),(b),(c)) @@ -172,14 +191,11 @@ int _gcry_mpi_divisible_ui(gcry_mpi_t dividend, ulong divisor ); /*-- mpi-mod.c --*/ -#define mpi_mod(r,a,m) _gcry_mpi_mod ((r), (a), (m)) #define mpi_barrett_init(m,f) _gcry_mpi_barrett_init ((m),(f)) #define mpi_barrett_free(c) _gcry_mpi_barrett_free ((c)) #define mpi_mod_barrett(r,a,c) _gcry_mpi_mod_barrett ((r), (a), (c)) #define mpi_mul_barrett(r,u,v,c) _gcry_mpi_mul_barrett ((r), (u), (v), (c)) -void _gcry_mpi_mod (gcry_mpi_t r, gcry_mpi_t dividend, gcry_mpi_t divisor); - /* Context used with Barrett reduction. */ struct barrett_ctx_s; typedef struct barrett_ctx_s *mpi_barrett_t; @@ -191,19 +207,10 @@ void _gcry_mpi_mul_barrett (gcry_mpi_t w, gcry_mpi_t u, gcry_mpi_t v, mpi_barrett_t ctx); - -/*-- mpi-gcd.c --*/ - /*-- mpi-mpow.c --*/ #define mpi_mulpowm(a,b,c,d) _gcry_mpi_mulpowm ((a),(b),(c),(d)) void _gcry_mpi_mulpowm( gcry_mpi_t res, gcry_mpi_t *basearray, gcry_mpi_t *exparray, gcry_mpi_t mod); -/*-- mpi-cmp.c --*/ -#define mpi_cmp_ui(a,b) gcry_mpi_cmp_ui ((a),(b)) -#define mpi_cmp(a,b) gcry_mpi_cmp ((a),(b)) -int gcry_mpi_cmp_ui( gcry_mpi_t u, ulong v ); -int gcry_mpi_cmp( gcry_mpi_t u, gcry_mpi_t v ); - /*-- mpi-scan.c --*/ #define mpi_trailing_zeros(a) _gcry_mpi_trailing_zeros ((a)) int _gcry_mpi_getbyte( gcry_mpi_t a, unsigned idx ); @@ -212,50 +219,88 @@ unsigned _gcry_mpi_trailing_zeros( gcry_mpi_t a ); /*-- mpi-bit.c --*/ #define mpi_normalize(a) _gcry_mpi_normalize ((a)) -#define mpi_get_nbits(a) gcry_mpi_get_nbits ((a)) -#define mpi_test_bit(a,b) gcry_mpi_test_bit ((a),(b)) -#define mpi_set_bit(a,b) gcry_mpi_set_bit ((a),(b)) -#define mpi_set_highbit(a,b) gcry_mpi_set_highbit ((a),(b)) -#define mpi_clear_bit(a,b) gcry_mpi_clear_bit ((a),(b)) -#define mpi_clear_highbit(a,b) gcry_mpi_clear_highbit ((a),(b)) -#define mpi_rshift(a,b,c) gcry_mpi_rshift ((a),(b),(c)) -#define mpi_lshift(a,b,c) gcry_mpi_lshift ((a),(b),(c)) void _gcry_mpi_normalize( gcry_mpi_t a ); -/*-- mpi-inv.c --*/ -#define mpi_invm(a,b,c) _gcry_mpi_invm ((a),(b),(c)) - /*-- ec.c --*/ /* Object to represent a point in projective coordinates. */ -struct mpi_point_s; -typedef struct mpi_point_s mpi_point_t; -struct mpi_point_s +struct gcry_mpi_point { gcry_mpi_t x; gcry_mpi_t y; gcry_mpi_t z; }; - -/* Context used with elliptic curve fucntions. */ -struct mpi_ec_ctx_s; -typedef struct mpi_ec_ctx_s *mpi_ec_t; - -void _gcry_mpi_ec_point_init (mpi_point_t *p); -void _gcry_mpi_ec_point_free (mpi_point_t *p); -mpi_ec_t _gcry_mpi_ec_init (gcry_mpi_t p, gcry_mpi_t a); +typedef struct gcry_mpi_point mpi_point_struct; +typedef struct gcry_mpi_point *mpi_point_t; + +void _gcry_mpi_point_init (mpi_point_t p); +void _gcry_mpi_point_free_parts (mpi_point_t p); +void _gcry_mpi_get_point (gcry_mpi_t x, gcry_mpi_t y, gcry_mpi_t z, + mpi_point_t point); +void _gcry_mpi_snatch_point (gcry_mpi_t x, gcry_mpi_t y, gcry_mpi_t z, + mpi_point_t point); + + +/* Models describing an elliptic curve. */ +enum gcry_mpi_ec_models + { + + MPI_EC_WEIERSTRASS = 0, + MPI_EC_MONTGOMERY, + MPI_EC_TWISTEDEDWARDS + /* The equation for Twisted Edwards curves is + ax^2 + y^2 = 1 + bx^2y^2 + Note that we use 'b' instead of the commonly used 'd'. */ + }; + +/* Dialects used with elliptic curves. It is easier to keep the + definition here than in ecc-common.h. */ +enum ecc_dialects + { + ECC_DIALECT_STANDARD = 0, + ECC_DIALECT_ED25519 + }; + + +void _gcry_mpi_point_log (const char *name, mpi_point_t point, mpi_ec_t ctx); +#define log_printpnt(a,p,c) _gcry_mpi_point_log ((a), (p), (c)) + +mpi_ec_t _gcry_mpi_ec_p_internal_new (enum gcry_mpi_ec_models model, + enum ecc_dialects dialect, + int flags, + gcry_mpi_t p, gcry_mpi_t a, gcry_mpi_t b); +gpg_err_code_t _gcry_mpi_ec_p_new (gcry_ctx_t *r_ctx, + enum gcry_mpi_ec_models model, + enum ecc_dialects dialect, + int flags, + gcry_mpi_t p, gcry_mpi_t a, gcry_mpi_t b); void _gcry_mpi_ec_free (mpi_ec_t ctx); -int _gcry_mpi_ec_get_affine (gcry_mpi_t x, gcry_mpi_t y, mpi_point_t *point, - mpi_ec_t ctx); -void _gcry_mpi_ec_dup_point (mpi_point_t *result, - mpi_point_t *point, mpi_ec_t ctx); -void _gcry_mpi_ec_add_points (mpi_point_t *result, - mpi_point_t *p1, mpi_point_t *p2, + +void _gcry_mpi_ec_dup_point (mpi_point_t result, + mpi_point_t point, mpi_ec_t ctx); +void _gcry_mpi_ec_add_points (mpi_point_t result, + mpi_point_t p1, mpi_point_t p2, mpi_ec_t ctx); -void _gcry_mpi_ec_mul_point (mpi_point_t *result, - gcry_mpi_t scalar, mpi_point_t *point, +void _gcry_mpi_ec_mul_point (mpi_point_t result, + gcry_mpi_t scalar, mpi_point_t point, mpi_ec_t ctx); +int _gcry_mpi_ec_curve_point (gcry_mpi_point_t point, mpi_ec_t ctx); + +gcry_mpi_t _gcry_mpi_ec_ec2os (gcry_mpi_point_t point, mpi_ec_t ectx); + +gcry_mpi_t _gcry_mpi_ec_get_mpi (const char *name, gcry_ctx_t ctx, int copy); +gcry_mpi_point_t _gcry_mpi_ec_get_point (const char *name, + gcry_ctx_t ctx, int copy); +gpg_err_code_t _gcry_mpi_ec_set_mpi (const char *name, gcry_mpi_t newvalue, + gcry_ctx_t ctx); +gpg_err_code_t _gcry_mpi_ec_set_point (const char *name, + gcry_mpi_point_t newvalue, + gcry_ctx_t ctx); + +/*-- ecc-curves.c --*/ +gpg_err_code_t _gcry_mpi_ec_new (gcry_ctx_t *r_ctx, + gcry_sexp_t keyparam, const char *curvename); |