ec.h

openssl 的一套sdk 特别好用

/* ASN1 stuff */

/* EC_GROUP_get_basis_type() returns the NID of the basis type
 * used to represent the field elements */
int EC_GROUP_get_basis_type(const EC_GROUP *);
int EC_GROUP_get_trinomial_basis(const EC_GROUP *, unsigned int *k);
int EC_GROUP_get_pentanomial_basis(const EC_GROUP *, unsigned int *k1, 
	unsigned int *k2, unsigned int *k3);

#define OPENSSL_EC_NAMED_CURVE	0x001

typedef struct ecpk_parameters_st ECPKPARAMETERS;

EC_GROUP *d2i_ECPKParameters(EC_GROUP **, const unsigned char **in, long len);
int i2d_ECPKParameters(const EC_GROUP *, unsigned char **out);

#define d2i_ECPKParameters_bio(bp,x) ASN1_d2i_bio_of(EC_GROUP,NULL,d2i_ECPKParameters,bp,x)
#define i2d_ECPKParameters_bio(bp,x) ASN1_i2d_bio_of_const(EC_GROUP,i2d_ECPKParameters,bp,x)
#define d2i_ECPKParameters_fp(fp,x) (EC_GROUP *)ASN1_d2i_fp(NULL, \
                (char *(*)())d2i_ECPKParameters,(fp),(unsigned char **)(x))
#define i2d_ECPKParameters_fp(fp,x) ASN1_i2d_fp(i2d_ECPKParameters,(fp), \
		(unsigned char *)(x))

#ifndef OPENSSL_NO_BIO
int     ECPKParameters_print(BIO *bp, const EC_GROUP *x, int off);
#endif
#ifndef OPENSSL_NO_FP_API
int     ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x, int off);
#endif

/* the EC_KEY stuff */
typedef struct ec_key_st EC_KEY;

/* some values for the encoding_flag */
#define EC_PKEY_NO_PARAMETERS	0x001
#define EC_PKEY_NO_PUBKEY	0x002

EC_KEY *EC_KEY_new(void);
EC_KEY *EC_KEY_new_by_curve_name(int nid);
void EC_KEY_free(EC_KEY *);
EC_KEY *EC_KEY_copy(EC_KEY *, const EC_KEY *);
EC_KEY *EC_KEY_dup(const EC_KEY *);

int EC_KEY_up_ref(EC_KEY *);

const EC_GROUP *EC_KEY_get0_group(const EC_KEY *);
int EC_KEY_set_group(EC_KEY *, const EC_GROUP *);
const BIGNUM *EC_KEY_get0_private_key(const EC_KEY *);
int EC_KEY_set_private_key(EC_KEY *, const BIGNUM *);
const EC_POINT *EC_KEY_get0_public_key(const EC_KEY *);
int EC_KEY_set_public_key(EC_KEY *, const EC_POINT *);
unsigned EC_KEY_get_enc_flags(const EC_KEY *);
void EC_KEY_set_enc_flags(EC_KEY *, unsigned int);
point_conversion_form_t EC_KEY_get_conv_form(const EC_KEY *);
void EC_KEY_set_conv_form(EC_KEY *, point_conversion_form_t);
/* functions to set/get method specific data  */
void *EC_KEY_get_key_method_data(EC_KEY *, 
	void *(*dup_func)(void *), void (*free_func)(void *), void (*clear_free_func)(void *));
void EC_KEY_insert_key_method_data(EC_KEY *, void *data,
	void *(*dup_func)(void *), void (*free_func)(void *), void (*clear_free_func)(void *));
/* wrapper functions for the underlying EC_GROUP object */
void EC_KEY_set_asn1_flag(EC_KEY *, int);
int EC_KEY_precompute_mult(EC_KEY *, BN_CTX *ctx);

/* EC_KEY_generate_key() creates a ec private (public) key */
int EC_KEY_generate_key(EC_KEY *);
/* EC_KEY_check_key() */
int EC_KEY_check_key(const EC_KEY *);

/* de- and encoding functions for SEC1 ECPrivateKey */
EC_KEY *d2i_ECPrivateKey(EC_KEY **a, const unsigned char **in, long len);
int i2d_ECPrivateKey(EC_KEY *a, unsigned char **out);
/* de- and encoding functions for EC parameters */
EC_KEY *d2i_ECParameters(EC_KEY **a, const unsigned char **in, long len);
int i2d_ECParameters(EC_KEY *a, unsigned char **out);
/* de- and encoding functions for EC public key
 * (octet string, not DER -- hence 'o2i' and 'i2o') */
EC_KEY *o2i_ECPublicKey(EC_KEY **a, const unsigned char **in, long len);
int i2o_ECPublicKey(EC_KEY *a, unsigned char **out);

#ifndef OPENSSL_NO_BIO
int	ECParameters_print(BIO *bp, const EC_KEY *x);
int	EC_KEY_print(BIO *bp, const EC_KEY *x, int off);
#endif
#ifndef OPENSSL_NO_FP_API
int	ECParameters_print_fp(FILE *fp, const EC_KEY *x);
int	EC_KEY_print_fp(FILE *fp, const EC_KEY *x, int off);
#endif

#define ECParameters_dup(x) ASN1_dup_of(EC_KEY,i2d_ECParameters,d2i_ECParameters,x)

#ifndef __cplusplus
#if defined(__SUNPRO_C)
#  if __SUNPRO_C >= 0x520
# pragma error_messages (default,E_ARRAY_OF_INCOMPLETE_NONAME,E_ARRAY_OF_INCOMPLETE)
#  endif
# endif
#endif

/* BEGIN ERROR CODES */
/* The following lines are auto generated by the script mkerr.pl. Any changes
 * made after this point may be overwritten when the script is next run.
 */
void ERR_load_EC_strings(void);

/* Error codes for the EC functions. */

/* Function codes. */
#define EC_F_COMPUTE_WNAF				 143
#define EC_F_D2I_ECPARAMETERS				 144
#define EC_F_D2I_ECPKPARAMETERS				 145
#define EC_F_D2I_ECPRIVATEKEY				 146
#define EC_F_ECPARAMETERS_PRINT				 147
#define EC_F_ECPARAMETERS_PRINT_FP			 148
#define EC_F_ECPKPARAMETERS_PRINT			 149
#define EC_F_ECPKPARAMETERS_PRINT_FP			 150
#define EC_F_ECP_NIST_MOD_192				 203
#define EC_F_ECP_NIST_MOD_224				 204
#define EC_F_ECP_NIST_MOD_256				 205
#define EC_F_ECP_NIST_MOD_521				 206
#define EC_F_EC_ASN1_GROUP2CURVE			 153
#define EC_F_EC_ASN1_GROUP2FIELDID			 154
#define EC_F_EC_ASN1_GROUP2PARAMETERS			 155
#define EC_F_EC_ASN1_GROUP2PKPARAMETERS			 156
#define EC_F_EC_ASN1_PARAMETERS2GROUP			 157
#define EC_F_EC_ASN1_PKPARAMETERS2GROUP			 158
#define EC_F_EC_EX_DATA_SET_DATA			 211
#define EC_F_EC_GF2M_MONTGOMERY_POINT_MULTIPLY		 208
#define EC_F_EC_GF2M_SIMPLE_GROUP_CHECK_DISCRIMINANT	 159
#define EC_F_EC_GF2M_SIMPLE_GROUP_SET_CURVE		 195
#define EC_F_EC_GF2M_SIMPLE_OCT2POINT			 160
#define EC_F_EC_GF2M_SIMPLE_POINT2OCT			 161
#define EC_F_EC_GF2M_SIMPLE_POINT_GET_AFFINE_COORDINATES 162
#define EC_F_EC_GF2M_SIMPLE_POINT_SET_AFFINE_COORDINATES 163
#define EC_F_EC_GF2M_SIMPLE_SET_COMPRESSED_COORDINATES	 164
#define EC_F_EC_GFP_MONT_FIELD_DECODE			 133
#define EC_F_EC_GFP_MONT_FIELD_ENCODE			 134
#define EC_F_EC_GFP_MONT_FIELD_MUL			 131
#define EC_F_EC_GFP_MONT_FIELD_SET_TO_ONE		 209
#define EC_F_EC_GFP_MONT_FIELD_SQR			 132
#define EC_F_EC_GFP_MONT_GROUP_SET_CURVE		 189
#define EC_F_EC_GFP_MONT_GROUP_SET_CURVE_GFP		 135
#define EC_F_EC_GFP_NIST_FIELD_MUL			 200
#define EC_F_EC_GFP_NIST_FIELD_SQR			 201
#define EC_F_EC_GFP_NIST_GROUP_SET_CURVE		 202
#define EC_F_EC_GFP_SIMPLE_GROUP_CHECK_DISCRIMINANT	 165
#define EC_F_EC_GFP_SIMPLE_GROUP_SET_CURVE		 166
#define EC_F_EC_GFP_SIMPLE_GROUP_SET_CURVE_GFP		 100
#define EC_F_EC_GFP_SIMPLE_GROUP_SET_GENERATOR		 101
#define EC_F_EC_GFP_SIMPLE_MAKE_AFFINE			 102
#define EC_F_EC_GFP_SIMPLE_OCT2POINT			 103
#define EC_F_EC_GFP_SIMPLE_POINT2OCT			 104
#define EC_F_EC_GFP_SIMPLE_POINTS_MAKE_AFFINE		 137
#define EC_F_EC_GFP_SIMPLE_POINT_GET_AFFINE_COORDINATES	 167
#define EC_F_EC_GFP_SIMPLE_POINT_GET_AFFINE_COORDINATES_GFP 105
#define EC_F_EC_GFP_SIMPLE_POINT_SET_AFFINE_COORDINATES	 168
#define EC_F_EC_GFP_SIMPLE_POINT_SET_AFFINE_COORDINATES_GFP 128
#define EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES	 169
#define EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES_GFP 129
#define EC_F_EC_GROUP_CHECK				 170
#define EC_F_EC_GROUP_CHECK_DISCRIMINANT		 171
#define EC_F_EC_GROUP_COPY				 106
#define EC_F_EC_GROUP_GET0_GENERATOR			 139
#define EC_F_EC_GROUP_GET_COFACTOR			 140
#define EC_F_EC_GROUP_GET_CURVE_GF2M			 172
#define EC_F_EC_GROUP_GET_CURVE_GFP			 130
#define EC_F_EC_GROUP_GET_DEGREE			 173
#define EC_F_EC_GROUP_GET_ORDER				 141
#define EC_F_EC_GROUP_GET_PENTANOMIAL_BASIS		 193
#define EC_F_EC_GROUP_GET_TRINOMIAL_BASIS		 194
#define EC_F_EC_GROUP_NEW				 108
#define EC_F_EC_GROUP_NEW_BY_CURVE_NAME			 174
#define EC_F_EC_GROUP_NEW_FROM_DATA			 175
#define EC_F_EC_GROUP_PRECOMPUTE_MULT			 142
#define EC_F_EC_GROUP_SET_CURVE_GF2M			 176
#define EC_F_EC_GROUP_SET_CURVE_GFP			 109
#define EC_F_EC_GROUP_SET_EXTRA_DATA			 110
#define EC_F_EC_GROUP_SET_GENERATOR			 111
#define EC_F_EC_KEY_CHECK_KEY				 177
#define EC_F_EC_KEY_COPY				 178
#define EC_F_EC_KEY_GENERATE_KEY			 179
#define EC_F_EC_KEY_NEW					 182
#define EC_F_EC_KEY_PRINT				 180
#define EC_F_EC_KEY_PRINT_FP				 181
#define EC_F_EC_POINTS_MAKE_AFFINE			 136
#define EC_F_EC_POINTS_MUL				 138
#define EC_F_EC_POINT_ADD				 112
#define EC_F_EC_POINT_CMP				 113
#define EC_F_EC_POINT_COPY				 114
#define EC_F_EC_POINT_DBL				 115
#define EC_F_EC_POINT_GET_AFFINE_COORDINATES_GF2M	 183
#define EC_F_EC_POINT_GET_AFFINE_COORDINATES_GFP	 116
#define EC_F_EC_POINT_GET_JPROJECTIVE_COORDINATES_GFP	 117
#define EC_F_EC_POINT_INVERT				 210
#define EC_F_EC_POINT_IS_AT_INFINITY			 118
#define EC_F_EC_POINT_IS_ON_CURVE			 119
#define EC_F_EC_POINT_MAKE_AFFINE			 120
#define EC_F_EC_POINT_MUL				 184
#define EC_F_EC_POINT_NEW				 121
#define EC_F_EC_POINT_OCT2POINT				 122
#define EC_F_EC_POINT_POINT2OCT				 123
#define EC_F_EC_POINT_SET_AFFINE_COORDINATES_GF2M	 185
#define EC_F_EC_POINT_SET_AFFINE_COORDINATES_GFP	 124
#define EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GF2M	 186
#define EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP	 125
#define EC_F_EC_POINT_SET_JPROJECTIVE_COORDINATES_GFP	 126
#define EC_F_EC_POINT_SET_TO_INFINITY			 127
#define EC_F_EC_PRE_COMP_DUP				 207
#define EC_F_EC_WNAF_MUL				 187
#define EC_F_EC_WNAF_PRECOMPUTE_MULT			 188
#define EC_F_I2D_ECPARAMETERS				 190
#define EC_F_I2D_ECPKPARAMETERS				 191
#define EC_F_I2D_ECPRIVATEKEY				 192
#define EC_F_I2O_ECPUBLICKEY				 151
#define EC_F_O2I_ECPUBLICKEY				 152

/* Reason codes. */
#define EC_R_ASN1_ERROR					 115
#define EC_R_ASN1_UNKNOWN_FIELD				 116
#define EC_R_BUFFER_TOO_SMALL				 100
#define EC_R_D2I_ECPKPARAMETERS_FAILURE			 117
#define EC_R_DISCRIMINANT_IS_ZERO			 118
#define EC_R_EC_GROUP_NEW_BY_NAME_FAILURE		 119
#define EC_R_FIELD_TOO_LARGE				 138
#define EC_R_GROUP2PKPARAMETERS_FAILURE			 120
#define EC_R_I2D_ECPKPARAMETERS_FAILURE			 121
#define EC_R_INCOMPATIBLE_OBJECTS			 101
#define EC_R_INVALID_ARGUMENT				 112
#define EC_R_INVALID_COMPRESSED_POINT			 110
#define EC_R_INVALID_COMPRESSION_BIT			 109
#define EC_R_INVALID_ENCODING				 102
#define EC_R_INVALID_FIELD				 103
#define EC_R_INVALID_FORM				 104
#define EC_R_INVALID_GROUP_ORDER			 122
#define EC_R_INVALID_PENTANOMIAL_BASIS			 132
#define EC_R_INVALID_PRIVATE_KEY			 123
#define EC_R_INVALID_TRINOMIAL_BASIS			 137
#define EC_R_MISSING_PARAMETERS				 124
#define EC_R_MISSING_PRIVATE_KEY			 125
#define EC_R_NOT_A_NIST_PRIME				 135
#define EC_R_NOT_A_SUPPORTED_NIST_PRIME			 136
#define EC_R_NOT_IMPLEMENTED				 126
#define EC_R_NOT_INITIALIZED				 111
#define EC_R_NO_FIELD_MOD				 133
#define EC_R_PASSED_NULL_PARAMETER			 134
#define EC_R_PKPARAMETERS2GROUP_FAILURE			 127
#define EC_R_POINT_AT_INFINITY				 106
#define EC_R_POINT_IS_NOT_ON_CURVE			 107
#define EC_R_SLOT_FULL					 108
#define EC_R_UNDEFINED_GENERATOR			 113
#define EC_R_UNDEFINED_ORDER				 128
#define EC_R_UNKNOWN_GROUP				 129
#define EC_R_UNKNOWN_ORDER				 114
#define EC_R_UNSUPPORTED_FIELD				 131
#define EC_R_WRONG_ORDER				 130

#ifdef  __cplusplus
}
#endif
#endif