2 files changed, 4 insertions, 0 deletions
diff --git a/pyecsca/codegen/bn/bn.c b/pyecsca/codegen/bn/bn.c
index 148403c..f41a1d7 100644
--- a/pyecsca/codegen/bn/bn.c
+++ b/pyecsca/codegen/bn/bn.c
@@ -27,6 +27,8 @@ void math_init(void) {
 	#endif //TODO: COMBA
 }
 
+const int bn_digit_bits __attribute__((used)) = MP_DIGIT_BIT;
+
 bn_err bn_init(bn_t *bn) {
 	return mp_init(bn);
 }
diff --git a/pyecsca/codegen/bn/bn.h b/pyecsca/codegen/bn/bn.h
index 7c25c22..58bd6df 100644
--- a/pyecsca/codegen/bn/bn.h
+++ b/pyecsca/codegen/bn/bn.h
@@ -78,6 +78,8 @@ typedef struct {
 
 void math_init(void);
 
+extern const int bn_digit_bits;
+
 bn_err  bn_init(bn_t *bn);
 #define bn_init_multi mp_init_multi
 bn_err  bn_copy(const bn_t *from, bn_t *to);