Add ecdh_{make,read}_public()
diff --git a/include/polarssl/ecdh.h b/include/polarssl/ecdh.h
index 6b8a905..67d1df5 100644
--- a/include/polarssl/ecdh.h
+++ b/include/polarssl/ecdh.h
@@ -123,6 +123,33 @@
const unsigned char **buf, const unsigned char *end );
/**
+ * \brief Setup and export the client's public value
+ *
+ * \param ctx ECDH context
+ * \param olen number of bytes actually written
+ * \param buf destination buffer
+ * \param blen size of destination buffer
+ *
+ * \return 0 if successful, or an POLARSSL_ERR_ECP_XXX error code
+ */
+int ecdh_make_public( ecdh_context *ctx, size_t *olen,
+ unsigned char *buf, size_t blen,
+ int (*f_rng)(void *, unsigned char *, size_t),
+ void *p_rng );
+
+/**
+ * \brief Parse and import the client's public value
+ *
+ * \param ctx ECDH context
+ * \param buf start of input buffer
+ * \param blen length of input buffer
+ *
+ * \return 0 if successful, or an POLARSSL_ERR_ECP_XXX error code
+ */
+int ecdh_read_public( ecdh_context *ctx,
+ const unsigned char *buf, size_t blen );
+
+/**
* \brief Checkup routine
*
* \return 0 if successful, or 1 if the test failed