pk-crypto.h

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#ifndef PK_CRYPTO_H_
#define PK_CRYPTO_H_

#include "../typedefs.h"
#include "../constants.h"

class pk_crypto;
class num;
class fe;
class brickexp;

class pk_crypto {
public:
    pk_crypto(seclvl sp, uint8_t* seed) {
    }
    ;
    ~pk_crypto() {
    }
    ;
    virtual num* get_num() = 0;
    virtual num* get_rnd_num(uint32_t bitlen = 0) = 0;
    virtual fe* get_fe() = 0;
    virtual fe* get_rnd_fe(uint32_t bitlen) = 0;
    virtual fe* get_generator() = 0;
    virtual fe* get_rnd_generator() = 0;
    virtual uint32_t num_byte_size() = 0;
    uint32_t fe_byte_size() {
        return fe_bytelen;
    }
    ;
    virtual uint32_t get_field_size() =0;
    virtual brickexp* get_brick(fe* gen) = 0;

protected:
    virtual void init(seclvl secparam, uint8_t* seed) = 0;
    uint32_t fe_bytelen;
    seclvl secparam;
};

//class number
class num {
public:
    num() {
    }
    ;
    ~num() {
    }
    ;
    virtual void set(num* src) = 0;
    virtual void set_si(int32_t src) = 0;
    virtual void set_add(num* a, num* b) = 0;
    virtual void set_mul(num* a, num* b) = 0;
    virtual void export_to_bytes(uint8_t* buf, uint32_t field_size) = 0;
    virtual void import_from_bytes(uint8_t* buf, uint32_t field_size) = 0;
    virtual void print() = 0;
};

//class field_element
class fe {
public:
    fe() {
    }
    ;
    ~fe() {
    }
    ;
    virtual void set(fe* src) = 0;
    virtual void set_mul(fe* a, fe* b) = 0;
    virtual void set_pow(fe* b, num* e) = 0;
    virtual void set_div(fe* a, fe* b) = 0;
    virtual void set_double_pow_mul(fe* b1, num* e1, fe* b2, num* e2) = 0;
    virtual void export_to_bytes(uint8_t* buf) = 0;
    virtual void import_from_bytes(uint8_t* buf) = 0;
    virtual void sample_fe_from_bytes(uint8_t* buf, uint32_t bytelen) = 0;
    virtual void print() = 0;

protected:
    virtual void init() = 0;
};

class brickexp {
public:
    brickexp() {
    }
    ;
    ~brickexp() {
    }
    ;

    virtual void pow(fe* result, num* e) = 0;
};

#endif /* PK_CRYPTO_H_ */