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#ifndef DROPBEAR_ECDSA_H_
#define DROPBEAR_ECDSA_H_
#include "includes.h"
#include "buffer.h"
#include "signkey.h"
#if DROPBEAR_ECDSA
/* prefer 256 or 384 since those are SHOULD for
draft-ietf-curdle-ssh-kex-sha2.txt */
#if DROPBEAR_ECC_256
#define ECDSA_DEFAULT_SIZE 256
#elif DROPBEAR_ECC_384
#define ECDSA_DEFAULT_SIZE 384
#elif DROPBEAR_ECC_521
#define ECDSA_DEFAULT_SIZE 521
#else
#error ECDSA cannot be enabled without enabling at least one size (256, 384, 521)
#endif
ecc_key *gen_ecdsa_priv_key(unsigned int bit_size);
ecc_key *buf_get_ecdsa_pub_key(buffer* buf);
ecc_key *buf_get_ecdsa_priv_key(buffer *buf);
void buf_put_ecdsa_pub_key(buffer *buf, ecc_key *key);
void buf_put_ecdsa_priv_key(buffer *buf, ecc_key *key);
enum signkey_type ecdsa_signkey_type(const ecc_key * key);
void buf_put_ecdsa_sign(buffer *buf, const ecc_key *key, const buffer *data_buf);
int buf_ecdsa_verify(buffer *buf, const ecc_key *key, const buffer *data_buf);
/* Returns 1 on success */
int signkey_is_ecdsa(enum signkey_type type);
#endif
#endif /* DROPBEAR_ECDSA_H_ */
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