-void bigint_add_s(bigint_t* dest, const bigint_t* a, const bigint_t* b);
-void bigint_sub_s(bigint_t* dest, const bigint_t* a, const bigint_t* b);
-int8_t bigint_cmp_s(const bigint_t* a, const bigint_t* b);
-void bigint_shiftleft(bigint_t* a, uint16_t shift);
-void bigint_shiftright(bigint_t* a, uint16_t shift);
-void bigint_xor(bigint_t* dest, const bigint_t* a);
-void bigint_set_zero(bigint_t* a);
-void bigint_mul_u(bigint_t* dest, const bigint_t* a, const bigint_t* b);
-void bigint_mul_s(bigint_t* dest, const bigint_t* a, const bigint_t* b);
-void bigint_square(bigint_t* dest, const bigint_t* a);
-void bigint_sub_u_bitscale(bigint_t* a, const bigint_t* b, uint16_t bitscale);
-void bigint_reduce(bigint_t* a, const bigint_t* r);
-void bigint_expmod_u(bigint_t* dest, const bigint_t* a, const bigint_t* exp, const bigint_t* r);
-void bigint_gcdext(bigint_t* gcd, bigint_t* a, bigint_t* b, const bigint_t* x, const bigint_t* y);
-void bigint_inverse(bigint_t* dest, const bigint_t* a, const bigint_t* m);
-void bigint_changeendianess(bigint_t* a);
-/******************************************************************************/
+void bigint_add_s(bigint_t *dest, const bigint_t *a, const bigint_t *b);
+void bigint_sub_s(bigint_t *dest, const bigint_t *a, const bigint_t *b);
+int8_t bigint_cmp_s(const bigint_t *a, const bigint_t *b);
+void bigint_shiftleft(bigint_t *a, bigint_length_t shift);
+void bigint_shiftright(bigint_t *a, bigint_length_t shift);
+void bigint_xor(bigint_t *dest, const bigint_t *a);
+void bigint_set_zero(bigint_t *a);
+void bigint_mul_u(bigint_t *dest, const bigint_t *a, const bigint_t *b);
+void bigint_mul_s(bigint_t *dest, const bigint_t *a, const bigint_t *b);
+void bigint_square(bigint_t *dest, const bigint_t *a);
+void bigint_sub_u_bitscale(bigint_t *a, const bigint_t *b, bigint_length_t bitscale);
+void bigint_reduce(bigint_t *a, const bigint_t *r);
+void bigint_mul_word_u(bigint_t *a, bigint_word_t b);
+void bigint_gcdext(bigint_t *gcd, bigint_t *a, bigint_t *b, const bigint_t *x, const bigint_t *y);
+void bigint_inverse(bigint_t *dest, const bigint_t *a, const bigint_t *m);
+void bigint_changeendianess(bigint_t *a);
+void bigint_clip(bigint_t *dest, bigint_length_t s);
+void bigint_mont_mul(bigint_t *dest, const bigint_t *a, const bigint_t *b, const bigint_t *m, const bigint_t *m_);
+void bigint_mont_red(bigint_t *dest, const bigint_t *a, const bigint_t *m, const bigint_t *m_);
+void bigint_mont_gen_m_(bigint_t* dest, const bigint_t* m);
+void bigint_mont_trans(bigint_t *dest, const bigint_t *a, const bigint_t *m);
+
+void bigint_expmod_u(bigint_t *dest, const bigint_t *a, const bigint_t *exp, const bigint_t *r);
+void bigint_expmod_u_sam(bigint_t *dest, const bigint_t *a, const bigint_t *exp, const bigint_t *r);
+void bigint_expmod_u_mont_sam(bigint_t *dest, const bigint_t *a, const bigint_t *exp, const bigint_t *r);
+