diff options
Diffstat (limited to 'src/crypto/ec/internal.h')
| -rw-r--r-- | src/crypto/ec/internal.h | 80 |
1 files changed, 73 insertions, 7 deletions
diff --git a/src/crypto/ec/internal.h b/src/crypto/ec/internal.h index 459bab5..71062c1 100644 --- a/src/crypto/ec/internal.h +++ b/src/crypto/ec/internal.h @@ -79,7 +79,13 @@ extern "C" { #endif +/* Use default functions for poin2oct, oct2point and compressed coordinates */ +#define EC_FLAGS_DEFAULT_OCT 0x1 + struct ec_method_st { + /* Various method flags */ + int flags; + /* used by EC_GROUP_new, EC_GROUP_free, EC_GROUP_clear_free, EC_GROUP_copy: */ int (*group_init)(EC_GROUP *); void (*group_finish)(EC_GROUP *); @@ -90,10 +96,66 @@ struct ec_method_st { /* EC_GROUP_set_curve_GF2m, and EC_GROUP_get_curve_GF2m: */ int (*group_set_curve)(EC_GROUP *, const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *); - - /* used by EC_POINT_get_affine_coordinates_GFp: */ + int (*group_get_curve)(const EC_GROUP *, BIGNUM *p, BIGNUM *a, BIGNUM *b, + BN_CTX *); + + /* used by EC_GROUP_get_degree: */ + int (*group_get_degree)(const EC_GROUP *); + + /* used by EC_GROUP_check: */ + int (*group_check_discriminant)(const EC_GROUP *, BN_CTX *); + + /* used by EC_POINT_new, EC_POINT_free, EC_POINT_clear_free, EC_POINT_copy: */ + int (*point_init)(EC_POINT *); + void (*point_finish)(EC_POINT *); + void (*point_clear_finish)(EC_POINT *); + int (*point_copy)(EC_POINT *, const EC_POINT *); + + /* used by EC_POINT_set_to_infinity, + * EC_POINT_set_Jprojective_coordinates_GFp, + * EC_POINT_get_Jprojective_coordinates_GFp, + * EC_POINT_set_affine_coordinates_GFp, ..._GF2m, + * EC_POINT_get_affine_coordinates_GFp, ..._GF2m, + * EC_POINT_set_compressed_coordinates_GFp, ..._GF2m: + */ + int (*point_set_to_infinity)(const EC_GROUP *, EC_POINT *); + int (*point_set_Jprojective_coordinates_GFp)(const EC_GROUP *, EC_POINT *, + const BIGNUM *x, const BIGNUM *y, + const BIGNUM *z, BN_CTX *); + int (*point_get_Jprojective_coordinates_GFp)(const EC_GROUP *, + const EC_POINT *, BIGNUM *x, + BIGNUM *y, BIGNUM *z, BN_CTX *); + int (*point_set_affine_coordinates)(const EC_GROUP *, EC_POINT *, + const BIGNUM *x, const BIGNUM *y, + BN_CTX *); int (*point_get_affine_coordinates)(const EC_GROUP *, const EC_POINT *, BIGNUM *x, BIGNUM *y, BN_CTX *); + int (*point_set_compressed_coordinates)(const EC_GROUP *, EC_POINT *, + const BIGNUM *x, int y_bit, BN_CTX *); + + /* used by EC_POINT_point2oct, EC_POINT_oct2point: */ + size_t (*point2oct)(const EC_GROUP *, const EC_POINT *, + point_conversion_form_t form, unsigned char *buf, + size_t len, BN_CTX *); + int (*oct2point)(const EC_GROUP *, EC_POINT *, const unsigned char *buf, + size_t len, BN_CTX *); + + /* used by EC_POINT_add, EC_POINT_dbl, ECP_POINT_invert: */ + int (*add)(const EC_GROUP *, EC_POINT *r, const EC_POINT *a, + const EC_POINT *b, BN_CTX *); + int (*dbl)(const EC_GROUP *, EC_POINT *r, const EC_POINT *a, BN_CTX *); + int (*invert)(const EC_GROUP *, EC_POINT *, BN_CTX *); + + /* used by EC_POINT_is_at_infinity, EC_POINT_is_on_curve, EC_POINT_cmp: */ + int (*is_at_infinity)(const EC_GROUP *, const EC_POINT *); + int (*is_on_curve)(const EC_GROUP *, const EC_POINT *, BN_CTX *); + int (*point_cmp)(const EC_GROUP *, const EC_POINT *a, const EC_POINT *b, + BN_CTX *); + + /* used by EC_POINT_make_affine, EC_POINTs_make_affine: */ + int (*make_affine)(const EC_GROUP *, EC_POINT *, BN_CTX *); + int (*points_make_affine)(const EC_GROUP *, size_t num, EC_POINT * [], + BN_CTX *); /* used by EC_POINTs_mul, EC_POINT_mul, EC_POINT_precompute_mult, * EC_POINT_have_precompute_mult @@ -102,15 +164,19 @@ struct ec_method_st { size_t num, const EC_POINT *points[], const BIGNUM *scalars[], BN_CTX *); int (*precompute_mult)(EC_GROUP *group, BN_CTX *); + int (*have_precompute_mult)(const EC_GROUP *group); + /* internal functions */ - /* 'field_mul' and 'field_sqr' can be used by 'add' and 'dbl' so that the - * same implementations of point operations can be used with different - * optimized implementations of expensive field operations: */ + /* 'field_mul', 'field_sqr', and 'field_div' can be used by 'add' and 'dbl' + * so that the same implementations of point operations can be used with + * different optimized implementations of expensive field operations: */ int (*field_mul)(const EC_GROUP *, BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *); int (*field_sqr)(const EC_GROUP *, BIGNUM *r, const BIGNUM *a, BN_CTX *); + int (*field_div)(const EC_GROUP *, BIGNUM *r, const BIGNUM *a, + const BIGNUM *b, BN_CTX *); int (*field_encode)(const EC_GROUP *, BIGNUM *r, const BIGNUM *a, BN_CTX *); /* e.g. to Montgomery */ @@ -168,6 +234,7 @@ int ec_wNAF_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *scalar, size_t num, const EC_POINT *points[], const BIGNUM *scalars[], BN_CTX *); int ec_wNAF_precompute_mult(EC_GROUP *group, BN_CTX *); +int ec_wNAF_have_precompute_mult(const EC_GROUP *group); /* method functions in simple.c */ int ec_GFp_simple_group_init(EC_GROUP *); @@ -178,7 +245,7 @@ int ec_GFp_simple_group_set_curve(EC_GROUP *, const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *); int ec_GFp_simple_group_get_curve(const EC_GROUP *, BIGNUM *p, BIGNUM *a, BIGNUM *b, BN_CTX *); -unsigned ec_GFp_simple_group_get_degree(const EC_GROUP *); +int ec_GFp_simple_group_get_degree(const EC_GROUP *); int ec_GFp_simple_group_check_discriminant(const EC_GROUP *, BN_CTX *); int ec_GFp_simple_point_init(EC_POINT *); void ec_GFp_simple_point_finish(EC_POINT *); @@ -252,7 +319,6 @@ void ec_GFp_nistp_points_make_affine_internal( void ec_GFp_nistp_recode_scalar_bits(uint8_t *sign, uint8_t *digit, uint8_t in); -const EC_METHOD *EC_GFp_nistp224_method(void); const EC_METHOD *EC_GFp_nistp256_method(void); struct ec_key_st { |