SSH Daemon Project - XT-Emporium

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#ifndef DROPBEAR_DROPBEAR_ECC_H
#define DROPBEAR_DROPBEAR_ECC_H

#include "includes.h"

#include "buffer.h"

#if DROPBEAR_ECC

struct dropbear_ecc_curve {
	int ltc_size; /* to match the byte sizes in ltc_ecc_sets[] */
	const ltc_ecc_set_type *dp; /* curve domain parameters */
	const struct ltc_hash_descriptor *hash_desc;
	const char *name;
};

extern struct dropbear_ecc_curve ecc_curve_nistp256;
extern struct dropbear_ecc_curve ecc_curve_nistp384;
extern struct dropbear_ecc_curve ecc_curve_nistp521;
extern struct dropbear_ecc_curve *dropbear_ecc_curves[];

void dropbear_ecc_fill_dp(void);
struct dropbear_ecc_curve* curve_for_dp(const ltc_ecc_set_type *dp);

/* "pubkey" refers to a point, but LTC uses ecc_key structure for both public
   and private keys */
void buf_put_ecc_raw_pubkey_string(buffer *buf, ecc_key *key);
ecc_key * buf_get_ecc_raw_pubkey(buffer *buf, const struct dropbear_ecc_curve *curve);
int buf_get_ecc_privkey_string(buffer *buf, ecc_key *key);

mp_int * dropbear_ecc_shared_secret(ecc_key *pub_key, const ecc_key *priv_key);

#endif

#endif /* DROPBEAR_DROPBEAR_ECC_H */

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