TLS support for X25519

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

diff --git a/include/openssl/ec.h b/include/openssl/ec.h
index 7fed45f7e60d308db5f3ba983b35b7450bb5adaa..b03b65d1ee6138f0dbc0c18ba234196efbcf1539 100644 (file)
--- a/include/openssl/ec.h
+++ b/include/openssl/ec.h
@@ -252,7 +252,7 @@ BN_MONT_CTX *EC_GROUP_get_mont_data(const EC_GROUP *group);
 /** Gets the order of a EC_GROUP
  *  \param  group  EC_GROUP object
  *  \param  order  BIGNUM to which the order is copied
- *  \param  ctx    BN_CTX object (optional)
+ *  \param  ctx    unused
  *  \return 1 on success and 0 if an error occurred
  */
 int EC_GROUP_get_order(const EC_GROUP *group, BIGNUM *order, BN_CTX *ctx);
@@ -274,7 +274,7 @@ int EC_GROUP_order_bits(const EC_GROUP *group);
 /** Gets the cofactor of a EC_GROUP
  *  \param  group     EC_GROUP object
  *  \param  cofactor  BIGNUM to which the cofactor is copied
- *  \param  ctx       BN_CTX object (optional)
+ *  \param  ctx       unused
  *  \return 1 on success and 0 if an error occurred
  */
 int EC_GROUP_get_cofactor(const EC_GROUP *group, BIGNUM *cofactor,
@@ -901,6 +901,12 @@ int EC_KEY_generate_key(EC_KEY *key);
  */
 int EC_KEY_check_key(const EC_KEY *key);
 
+/** Indicates if an EC_KEY can be used for signing.
+ *  \param  key  the EC_KEY object
+ *  \return 1 if can can sign and 0 otherwise.
+ */
+int EC_KEY_can_sign(const EC_KEY *eckey);
+
 /** Sets a public key from affine coordindates performing
  *  necessary NIST PKV tests.
  *  \param  key  the EC_KEY object
@@ -953,6 +959,13 @@ int EC_KEY_oct2priv(EC_KEY *key, unsigned char *buf, size_t len);
 
 size_t EC_KEY_priv2oct(const EC_KEY *key, unsigned char *buf, size_t len);
 
+/** Encodes an EC_KEY private key to an allocated octet string
+ *  \param  key    key to encode
+ *  \param  pbuf   returns pointer to allocated buffer
+ *  \return the length of the encoded octet string or 0 if an error occurred
+ */
+
+size_t EC_KEY_priv2buf(const EC_KEY *eckey, unsigned char **pbuf);
 
 /********************************************************************/
 /*        de- and encoding functions for SEC1 ECPrivateKey          */
@@ -1556,6 +1569,7 @@ void ERR_load_EC_strings(void);
 # define EC_R_BIGNUM_OUT_OF_RANGE                         144
 # define EC_R_BUFFER_TOO_SMALL                            100
 # define EC_R_COORDINATES_OUT_OF_RANGE                    146
+# define EC_R_CURVE_DOES_NOT_SUPPORT_SIGNING              159
 # define EC_R_D2I_ECPKPARAMETERS_FAILURE                  117
 # define EC_R_DECODE_ERROR                                142
 # define EC_R_DISCRIMINANT_IS_ZERO                        118