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#ifndef __LIB_6_H__
#define __LIB_6_H__
#include "lib6.h"
#include "lib5.h"
#include "lib4.h"
#include "lib3.h"
#include "lib2.h"
#include "lib.h"
struct dsa_public_params {
BIGNUM *p;
BIGNUM *q;
BIGNUM *g;
unsigned int bits;
};
struct dsa_per_user_param {
BIGNUM *public;
BIGNUM *private;
// signature data here also because they should not be here
BIGNUM *r;
BIGNUM *s;
};
int rsa_sign_bignum(BIGNUM *message, BIGNUM *signed_message, struct rsa_key_bignum *private);
int rsa_verify_bignum(BIGNUM *signed_message, BIGNUM *org_message, struct rsa_key_bignum *public);
int shitty_pkcs1_5_padding_verify(char *to_verify, int len, char *message);
int pkcs1_5_padding_verify(char *to_verify, int len, char *message);
void init_dsa_pub_param(struct dsa_public_params *p);
void dsa_compute_per_user_keys(struct dsa_public_params *pub_param, struct
dsa_per_user_param *priv_param);
void dsa_sign(char *mess, struct dsa_public_params *pub_param, struct dsa_per_user_param
*priv_param, BIGNUM *k);
int dsa_verify(char *mess, struct dsa_public_params *pub, struct dsa_per_user_param
*priv);
void dsa_recover_x_from_known_k(struct dsa_public_params *pub, BIGNUM *k,
struct dsa_per_user_param *priv, BIGNUM *mess_hash);
void dsa_recover_k_from_repeated_nonce(BIGNUM *mess1_hash, BIGNUM *mess2_hash,
BIGNUM *s1, BIGNUM *s2, struct dsa_public_params *pub,
struct dsa_per_user_param *priv, BIGNUM *k);
void dsa_generate_magic_signature(struct dsa_public_params *pub, struct dsa_per_user_param
*priv, BIGNUM *mess_hash);
#endif /* __LIB_6_H__ */
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