CalcLib

A library for multi-precision processing

New structure

lentier:

unsigned int* p;
unsigned int size;

p is a pointer to 32 bits arrays of unsigned int ; size is the number of 32 bits arrays

How to use it ?

• Operations with lentiers:

  • Add:

    lentier add_lentier(lentier, lentier);
    

  • Sub:

    lentier sub_lentier(lentier, lentier);
    

  • Multiply:

    lentier mult_classique(lentier, lentier);
    

  • Divide:

    res_div div_eucl(lentier, lentier);
    
    Wich returns a res_div composed of 2 lentiers : q is the quotient and r the remainder.
    

• Cryptographic computing:

  • Modular exponentiation:

       lentier exp_mod(lentier, lentier, lentier);
    

  • Modular multiplication:

       lentier mul_mod(lentier, lentier, lentier);
    

• Other features:

  • Display:

       void Affiche_lentier(lentier);