Removed the Bignum abstraction library, as it was not needed.

13 files changed, 0 insertions, 210 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1d4c104..847d6b7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -43,7 +43,6 @@ endif(use_lto)
 set(CMAKE_CXX_STANDARD 11)
 set(CMAKE_C_STANDARD 99)
 
-add_subdirectory(libcmix-bignum)
 add_subdirectory(libcmix-crypto)
 add_subdirectory(libcmix)
 
diff --git a/client/CMakeLists.txt b/client/CMakeLists.txt
index c457c16..cd0b308 100644
--- a/client/CMakeLists.txt
+++ b/client/CMakeLists.txt
@@ -11,7 +11,6 @@ target_link_libraries(client
 	PRIVATE Boost::system
 	PRIVATE log
 	PRIVATE cmix
-	PRIVATE cmix-bignum
 	PRIVATE cmix-network
 	PRIVATE cmix-protobuf
 	PRIVATE cmix-common
diff --git a/libcmix-bignum/CMakeLists.txt b/libcmix-bignum/CMakeLists.txt
deleted file mode 100644
index 2cadc87..0000000
--- a/libcmix-bignum/CMakeLists.txt
+++ /dev/null
@@ -1,33 +0,0 @@
-
-add_library(cmix-bignum-interface INTERFACE)
-
-target_include_directories(cmix-bignum-interface
-	INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}
-)
-
-set(interface_sources 
-	${CMAKE_CURRENT_SOURCE_DIR}/bignum.h
-)
-
-target_sources(cmix-bignum-interface
-	INTERFACE ${interface_sources}
-)
-
-include(bignum_implementations)
-foreach(impl ${libcmix_bignum_implementations})
-	add_subdirectory(${impl})
-endforeach()
-
-add_library(cmix-bignum INTERFACE)
-
-target_include_directories(cmix-bignum
-	INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}
-)
-
-target_sources(cmix-bignum
-	INTERFACE ${interface_sources}
-)
-
-target_link_libraries(cmix-bignum
-	INTERFACE libcmix-bignum-${libcmix_bignum_implementation}
-)
diff --git a/libcmix-bignum/bignum.h b/libcmix-bignum/bignum.h
deleted file mode 100644
index fe690cc..0000000
--- a/libcmix-bignum/bignum.h
+++ /dev/null
@@ -1,72 +0,0 @@
-#pragma once
-
-#include <stddef.h>
-#include <stdlib.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/*!
- * \file
- */
-
-/*!
- * \brief The bignum_error enum
- */
-enum bignum_error {
-	NoError = 0,
-	error = -1
-};
-
-/*!
- * \brief cMix internal bignum representation.
- */
-struct Bignum {
-	unsigned char* data; ///< Pointer to the start of the bignum.
-	size_t len; ///< The length of the data array.
-};
-
-/*!
- * \brief allocate_bignum. Reserves space for a len size Bignum.
- * \param len The length of the bignum data array.
- * \return The Bignum array just allocated.
- */
-inline struct Bignum allocate_bignum(size_t len) {
-	return (struct Bignum){
-		(unsigned char*) malloc(len),
-		len
-	};
-}
-
-/*!
- * \brief free_bignum. Counterpart to allocate_bignum.
- * \param b The bignum to free
- */
-inline void free_bignum(struct Bignum* b) {
-	free(b->data);
-	b->data = 0;
-	b->len = 0;
-}
-
-/*!
- * \brief get_curve25519_mod. Conveniance for now, but this returns the mod of curve25519 algorith (2^255-19)
- * \param result The bignum to store the modulus in, has to be preallocated.
- * \return Error status code based on backend errors.
- */
-extern enum bignum_error get_curve25519_mod(struct Bignum* result);
-
-/*!
- * \brief multiply_mod Multiplies 2 bignums module mod and stores the result in result.
- * \param result Preallocated Bignum where the result will be stored.
- * \param lh Lefthand of Multiplication.
- * \param rh Righthand of Multiplaction.
- * \param mod The modulus.
- * \return Error status code based on backend errors.
- */
-extern enum bignum_error multiply_mod(struct Bignum* result, struct Bignum const lh, struct Bignum const rh, struct Bignum const mod);
-
-
-#ifdef __cplusplus
-}
-#endif
\ No newline at end of file
diff --git a/libcmix-bignum/gmp/CMakeLists.txt b/libcmix-bignum/gmp/CMakeLists.txt
deleted file mode 100644
index 4b3acbb..0000000
--- a/libcmix-bignum/gmp/CMakeLists.txt
+++ /dev/null
@@ -1,14 +0,0 @@
-include(get_target_name)
-
-get_target_name(target_name)
-
-find_package(gmp REQUIRED)
-
-add_library(${target_name} SHARED
-	gmp_bignum.c
-)
-
-target_link_libraries(${target_name}
-	PRIVATE cmix-bignum-interface
-	PRIVATE gmp
-)
diff --git a/libcmix-bignum/gmp/gmp_bignum.c b/libcmix-bignum/gmp/gmp_bignum.c
deleted file mode 100644
index cc40b48..0000000
--- a/libcmix-bignum/gmp/gmp_bignum.c
+++ /dev/null
@@ -1,49 +0,0 @@
-#include "bignum.h"
-
-#include "gmp.h"
-
-void from_bignum(mpz_t i, struct Bignum b) {	
-	mpz_import(i, b.len, -1, 1, 0, 0, b.data);
-}
-
-void to_bignum(struct Bignum* b, mpz_t i) {
-	mpz_export(b->data, &b->len, -1, 1, 0, 0, i);
-}
-
-enum bignum_error get_curve25519_mod(struct Bignum* result) {
-	mpz_t mod;
-	mpz_init(mod);
-	mpz_ui_pow_ui(mod, 2, 255);
-	mpz_sub_ui(mod, mod, 19);
-	
-	to_bignum(result, mod);
-	return NoError;
-}
-
-enum bignum_error multiply_mod(struct Bignum* result, struct Bignum const lh, struct Bignum const rh, struct Bignum const mod) {
-	mpz_t lh_;
-	mpz_init(lh_);
-	from_bignum(lh_, lh);
-	
-	mpz_t rh_;
-	mpz_init(rh_);
-	from_bignum(rh_, rh);
-	
-	mpz_t result_;
-	mpz_init(result_);
-	mpz_mul(result_, lh_, rh_);
-	
-	mpz_t mod_;
-	mpz_init(mod_);
-	from_bignum(mod_, mod);
-	mpz_mod(result_, result_, mod_);
-	
-	to_bignum(result, result_);
-	
-	mpz_clear(result_);
-	mpz_clear(lh_);
-	mpz_clear(rh_);
-	mpz_clear(mod_);
-	
-	return NoError;
-}
diff --git a/libcmix-bignum/null/CMakeLists.txt b/libcmix-bignum/null/CMakeLists.txt
deleted file mode 100644
index 325d1c8..0000000
--- a/libcmix-bignum/null/CMakeLists.txt
+++ /dev/null
@@ -1,11 +0,0 @@
-include(get_target_name)
-
-get_target_name(target_name)
-
-add_library(${target_name} SHARED
-	null_bignum.c
-)
-
-target_link_libraries(${target_name}
-	PRIVATE cmix-bignum-interface
-)
diff --git a/libcmix-bignum/null/null_bignum.c b/libcmix-bignum/null/null_bignum.c
deleted file mode 100644
index 3b45132..0000000
--- a/libcmix-bignum/null/null_bignum.c
+++ /dev/null
@@ -1,9 +0,0 @@
-#include "bignum.h"
-
-extern enum bignum_error get_curve25519_mod(struct Bignum* result) {
-	return NoError;
-}
-
-extern enum bignum_error multiply_mod(struct Bignum* result, struct Bignum const lh, struct Bignum const rh, struct Bignum const mod) {
-	return NoError;
-}
diff --git a/libcmix/CMakeLists.txt b/libcmix/CMakeLists.txt
index 5a7761b..a6d1c1b 100644
--- a/libcmix/CMakeLists.txt
+++ b/libcmix/CMakeLists.txt
@@ -9,5 +9,4 @@ target_include_directories(cmix
 
 target_link_libraries(cmix
 	PUBLIC cmix-crypto
-	PUBLIC cmix-bignum
 )
diff --git a/libcmix/cmix.c b/libcmix/cmix.c
index 2adca78..2311bea 100644
--- a/libcmix/cmix.c
+++ b/libcmix/cmix.c
@@ -6,14 +6,6 @@
 #include <stdio.h>
 #include <math.h>
 
-enum cmix_error calculate_shared_key_part(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;
-}
-
 struct CMixContext initialize_cmix_context(struct Api api) {
 	return (struct CMixContext){
 		.api = api,
diff --git a/libcmix/cmix.h b/libcmix/cmix.h
index c3eeb3a..0b2a42a 100644
--- a/libcmix/cmix.h
+++ b/libcmix/cmix.h
@@ -7,7 +7,6 @@ extern "C" {
 #include "api.h"
 #include "keypair.h"
 #include "groupelement.h"
-#include "bignum.h"
 
 /*!
  * \file
@@ -35,15 +34,7 @@ enum cmix_error {
 };
 
 /*!
- * \brief calculate_shared_key_part Calculates (partly) the shared key which is needed by all the nodes.
- * \param result Storage for the result
- * \param partial_shared The shared key so far.
- * \param my_share My part to add to the key.
- * \param mod The modulus of the group we are in.
- * \return An error_code.
  */
-enum cmix_error calculate_shared_key_part(struct Bignum* result, struct Bignum partial_shared, struct Bignum my_share, struct Bignum mod);
-
 struct CMixContext {
 	struct Api api;
 	struct KeyPair keypair;
diff --git a/node/CMakeLists.txt b/node/CMakeLists.txt
index 3659984..87d3385 100644
--- a/node/CMakeLists.txt
+++ b/node/CMakeLists.txt
@@ -22,7 +22,6 @@ target_link_libraries(node
 	PRIVATE Boost::system
 	PRIVATE log
 	PRIVATE cmix
-	PRIVATE cmix-bignum
 	PRIVATE cmix-network
 	PRIVATE cmix-protobuf
 	PRIVATE cmix-common
diff --git a/node/node.cpp b/node/node.cpp
index 84ea179..b31f60a 100644
--- a/node/node.cpp
+++ b/node/node.cpp
@@ -1,7 +1,6 @@
  #include "node.hpp"
 
 #include "cmix.h"
-#include "bignum.h"
 
 #include "logging.hpp"