Add compute key support to EC_KEY_METHOD

[openssl.git] / include / openssl / ec.h

diff --git a/include/openssl/ec.h b/include/openssl/ec.h
index 2d36dd5ea74e82ea470f622acdeee286bb9181e1..99c945a184457ed67020f56cfe302020bdc813bf 100644 (file)
--- a/include/openssl/ec.h
+++ b/include/openssl/ec.h
@@ -106,7 +106,7 @@ typedef enum {
         /** the point is encoded as z||x, where the octet z specifies
          *  which solution of the quadratic equation y is  */
     POINT_CONVERSION_COMPRESSED = 2,
-        /** the point is encoded as z||x||y, where z is the octet 0x02  */
+        /** the point is encoded as z||x||y, where z is the octet 0x04  */
     POINT_CONVERSION_UNCOMPRESSED = 4,
         /** the point is encoded as z||x||y, where the octet z specifies
          *  which solution of the quadratic equation y is  */
@@ -740,6 +740,7 @@ int ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x, int off);
 /********************************************************************/
 
 typedef struct ec_key_st EC_KEY;
+typedef struct ec_key_method_st EC_KEY_METHOD;
 
 /* some values for the encoding_flag */
 # define EC_PKEY_NO_PARAMETERS   0x001
@@ -748,6 +749,7 @@ typedef struct ec_key_st EC_KEY;
 /* some values for the flags field */
 # define EC_FLAG_NON_FIPS_ALLOW  0x1
 # define EC_FLAG_FIPS_CHECKED    0x2
+# define EC_FLAG_COFACTOR_ECDH   0x1000
 
 /** Creates a new EC_KEY object.
  *  \return EC_KEY object or NULL if an error occurred.
@@ -983,6 +985,20 @@ int EC_KEY_print_fp(FILE *fp, const EC_KEY *key, int off);
 
 # endif
 
+const EC_KEY_METHOD *EC_KEY_OpenSSL(void);
+const EC_KEY_METHOD *EC_KEY_get_default_method(void);
+void EC_KEY_set_default_method(const EC_KEY_METHOD *meth);
+EC_KEY *EC_KEY_new_method(ENGINE *engine);
+
+int ECDH_KDF_X9_62(unsigned char *out, size_t outlen,
+                   const unsigned char *Z, size_t Zlen,
+                   const unsigned char *sinfo, size_t sinfolen,
+                   const EVP_MD *md);
+
+int ECDH_compute_key(void *out, size_t outlen, const EC_POINT *pub_key,
+                     EC_KEY *ecdh, void *(*KDF) (const void *in, size_t inlen,
+                                                 void *out, size_t *outlen));
+
 # define ECParameters_dup(x) ASN1_dup_of(EC_KEY,i2d_ECParameters,d2i_ECParameters,x)
 
 # ifndef __cplusplus
@@ -1096,6 +1112,11 @@ void ERR_load_EC_strings(void);
 # define EC_F_ECPARAMETERS_PRINT_FP                       148
 # define EC_F_ECPKPARAMETERS_PRINT                        149
 # define EC_F_ECPKPARAMETERS_PRINT_FP                     150
+# define EC_F_ECP_NISTZ256_GET_AFFINE                     240
+# define EC_F_ECP_NISTZ256_MULT_PRECOMPUTE                243
+# define EC_F_ECP_NISTZ256_POINTS_MUL                     241
+# define EC_F_ECP_NISTZ256_PRE_COMP_NEW                   244
+# define EC_F_ECP_NISTZ256_WINDOWED_MUL                   242
 # define EC_F_ECP_NIST_MOD_192                            203
 # define EC_F_ECP_NIST_MOD_224                            204
 # define EC_F_ECP_NIST_MOD_256                            205
@@ -1171,6 +1192,7 @@ void ERR_load_EC_strings(void);
 # 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_NEW_METHOD                           245
 # define EC_F_EC_KEY_PRINT                                180
 # define EC_F_EC_KEY_PRINT_FP                             181
 # define EC_F_EC_KEY_SET_PUBLIC_KEY_AFFINE_COORDINATES    229
@@ -1207,11 +1229,6 @@ void ERR_load_EC_strings(void);
 # define EC_F_NISTP224_PRE_COMP_NEW                       227
 # define EC_F_NISTP256_PRE_COMP_NEW                       236
 # define EC_F_NISTP521_PRE_COMP_NEW                       237
-# define EC_F_ECP_NISTZ256_GET_AFFINE                     240
-# define EC_F_ECP_NISTZ256_POINTS_MUL                     241
-# define EC_F_ECP_NISTZ256_WINDOWED_MUL                   242
-# define EC_F_ECP_NISTZ256_MULT_PRECOMPUTE                243
-# define EC_F_ECP_NISTZ256_PRE_COMP_NEW                   244
 # define EC_F_O2I_ECPUBLICKEY                             152
 # define EC_F_OLD_EC_PRIV_DECODE                          222
 # define EC_F_PKEY_EC_CTRL                                197
@@ -1259,6 +1276,7 @@ void ERR_load_EC_strings(void);
 # define EC_R_NOT_INITIALIZED                             111
 # define EC_R_NO_FIELD_MOD                                133
 # define EC_R_NO_PARAMETERS_SET                           139
+# define EC_R_OPERATION_NOT_SUPPORTED                     152
 # define EC_R_PASSED_NULL_PARAMETER                       134
 # define EC_R_PEER_KEY_ERROR                              149
 # define EC_R_PKPARAMETERS2GROUP_FAILURE                  127