Refactored some code to be more consistent.

3 files changed, 17 insertions, 1 deletions

diff --git a/libcmix/CMakeLists.txt b/libcmix/CMakeLists.txt
index fe65e7a..885a6c8 100644
--- a/libcmix/CMakeLists.txt
+++ b/libcmix/CMakeLists.txt
@@ -13,4 +13,5 @@ target_compile_options(cmix
 
 target_link_libraries(cmix
 	PUBLIC cmix-crypto
+	PUBLIC cmix-bignum
 )
diff --git a/libcmix/cmix.c b/libcmix/cmix.c
index 944ac9c..db385c6 100644
--- a/libcmix/cmix.c
+++ b/libcmix/cmix.c
@@ -25,4 +25,14 @@ enum cmix_error set_message(char const* message, struct CMixBuffer b, unsigned i
 	}
 	
 	strncpy(b.buffer + index * b.message_length, message, b.message_length);
+	
+	return no_error;
+}
+
+enum cmix_error calculate_shared_secret(struct Bignum* result, struct Bignum partial_shared, struct Bignum my_share, struct Bignum mod)
+{
+	if(multiply_mod(result, partial_shared, my_share, mod) != NoError) {
+		return cmix_bignum_error;
+	}
+	return no_error;
 }
diff --git a/libcmix/cmix.h b/libcmix/cmix.h
index 4a4441b..96d578f 100644
--- a/libcmix/cmix.h
+++ b/libcmix/cmix.h
@@ -2,6 +2,8 @@
 extern "C" {
 #endif
 
+#include "bignum.h"
+
 /*!
  * \file
  */
@@ -22,7 +24,8 @@ struct CMixBuffer {
  */
 enum cmix_error {
 	no_error = 0,
-	index_out_of_range = 1000
+	index_out_of_range = 1000,
+	cmix_bignum_error = 2000,
 };
 
 /*!
@@ -50,6 +53,8 @@ enum cmix_error get_message(char* message, struct CMixBuffer b, unsigned int ind
  */
 enum cmix_error set_message(char const* message, struct CMixBuffer b, unsigned int index);
 
+enum cmix_error calculate_shared_secret(struct Bignum* result, struct Bignum partial_shared, struct Bignum my_share, struct Bignum mod);
+
 #ifdef __cplusplus
 } // extern "C"
 #endif