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trezor-firmware/crypto/ed25519-donna/ed25519.h

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#ifndef ED25519_H
#define ED25519_H
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#include "options.h"
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#if defined(__cplusplus)
extern "C" {
#endif
typedef unsigned char ed25519_signature[64];
typedef unsigned char ed25519_public_key[32];
typedef unsigned char ed25519_secret_key[32];
typedef unsigned char curve25519_key[32];
typedef unsigned char ed25519_cosi_signature[32];
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void ed25519_publickey(const ed25519_secret_key sk, ed25519_public_key pk);
#if USE_CARDANO
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void ed25519_publickey_ext(const ed25519_secret_key sk, const ed25519_secret_key skext, ed25519_public_key pk);
#endif
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int ed25519_sign_open(const unsigned char *m, size_t mlen, const ed25519_public_key pk, const ed25519_signature RS);
void ed25519_sign(const unsigned char *m, size_t mlen, const ed25519_secret_key sk, const ed25519_public_key pk, ed25519_signature RS);
#if USE_CARDANO
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void ed25519_sign_ext(const unsigned char *m, size_t mlen, const ed25519_secret_key sk, const ed25519_secret_key skext, const ed25519_public_key pk, ed25519_signature RS);
#endif
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int ed25519_scalarmult(ed25519_public_key res, const ed25519_secret_key sk, const ed25519_public_key pk);
void curve25519_scalarmult(curve25519_key mypublic, const curve25519_key secret, const curve25519_key basepoint);
void curve25519_scalarmult_basepoint(curve25519_key mypublic, const curve25519_key secret);
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#if !defined(__GNUC__) || __GNUC__ > 4
#define CONST const
#else
#define CONST
#endif
int ed25519_cosi_combine_publickeys(ed25519_public_key res, CONST ed25519_public_key *pks, size_t n);
void ed25519_cosi_combine_signatures(ed25519_signature res, const ed25519_public_key R, CONST ed25519_cosi_signature *sigs, size_t n);
void ed25519_cosi_sign(const unsigned char *m, size_t mlen, const ed25519_secret_key key, const ed25519_secret_key nonce, const ed25519_public_key R, const ed25519_public_key pk, ed25519_cosi_signature sig);
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#if defined(__cplusplus)
}
#endif
#endif // ED25519_H