+/* 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;
+
+typedef struct ec_key_meth_data_st {
+ int (*init)(EC_KEY *);
+ void (*finish)(EC_KEY *);
+ } EC_KEY_METH_DATA;
+
+struct ec_key_st {
+ int version;
+
+ EC_GROUP *group;
+
+ EC_POINT *pub_key;
+ BIGNUM *priv_key;
+
+ unsigned int enc_flag;
+ point_conversion_form_t conv_form;
+
+ int references;
+
+ EC_KEY_METH_DATA *meth_data;
+ }/* 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);
+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 *);
+
+/* 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