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#include <string.h>
#include "crypto_hash_sha512.h"
#include "crypto_sign_ed25519.h"
#include "ref10/sign_ed25519_ref10.h"
size_t
crypto_sign_ed25519ph_statebytes(void)
{
return sizeof(crypto_sign_ed25519ph_state);
}
size_t
crypto_sign_ed25519_bytes(void)
{
return crypto_sign_ed25519_BYTES;
}
size_t
crypto_sign_ed25519_seedbytes(void)
{
return crypto_sign_ed25519_SEEDBYTES;
}
size_t
crypto_sign_ed25519_publickeybytes(void)
{
return crypto_sign_ed25519_PUBLICKEYBYTES;
}
size_t
crypto_sign_ed25519_secretkeybytes(void)
{
return crypto_sign_ed25519_SECRETKEYBYTES;
}
size_t
crypto_sign_ed25519_messagebytes_max(void)
{
return crypto_sign_ed25519_MESSAGEBYTES_MAX;
}
int
crypto_sign_ed25519_sk_to_seed(unsigned char *seed, const unsigned char *sk)
{
memmove(seed, sk, crypto_sign_ed25519_SEEDBYTES);
return 0;
}
int
crypto_sign_ed25519_sk_to_pk(unsigned char *pk, const unsigned char *sk)
{
memmove(pk, sk + crypto_sign_ed25519_SEEDBYTES,
crypto_sign_ed25519_PUBLICKEYBYTES);
return 0;
}
int
crypto_sign_ed25519ph_init(crypto_sign_ed25519ph_state *state)
{
crypto_hash_sha512_init(&state->hs);
return 0;
}
int
crypto_sign_ed25519ph_update(crypto_sign_ed25519ph_state *state,
const unsigned char *m, unsigned long long mlen)
{
return crypto_hash_sha512_update(&state->hs, m, mlen);
}
int
crypto_sign_ed25519ph_final_create(crypto_sign_ed25519ph_state *state,
unsigned char *sig,
unsigned long long *siglen_p,
const unsigned char *sk)
{
unsigned char ph[crypto_hash_sha512_BYTES];
crypto_hash_sha512_final(&state->hs, ph);
return _crypto_sign_ed25519_detached(sig, siglen_p, ph, sizeof ph, sk, 1);
}
int
crypto_sign_ed25519ph_final_verify(crypto_sign_ed25519ph_state *state,
unsigned char *sig,
const unsigned char *pk)
{
unsigned char ph[crypto_hash_sha512_BYTES];
crypto_hash_sha512_final(&state->hs, ph);
return _crypto_sign_ed25519_verify_detached(sig, ph, sizeof ph, pk, 1);
}
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