void ed25519_sign(unsigned char *signature, const unsigned char *message, size_t message_len, const unsigned char *public_key, const unsigned char *private_key) {
- sha512_context hash;
- unsigned char hram[64];
- unsigned char r[64];
- ge_p3 R;
+ sha512_context hash;
+ unsigned char hram[64];
+ unsigned char r[64];
+ ge_p3 R;
- sha512_init(&hash);
- sha512_update(&hash, private_key + 32, 32);
- sha512_update(&hash, message, message_len);
- sha512_final(&hash, r);
+ sha512_init(&hash);
+ sha512_update(&hash, private_key + 32, 32);
+ sha512_update(&hash, message, message_len);
+ sha512_final(&hash, r);
- sc_reduce(r);
- ge_scalarmult_base(&R, r);
- ge_p3_tobytes(signature, &R);
+ sc_reduce(r);
+ ge_scalarmult_base(&R, r);
+ ge_p3_tobytes(signature, &R);
- sha512_init(&hash);
- sha512_update(&hash, signature, 32);
- sha512_update(&hash, public_key, 32);
- sha512_update(&hash, message, message_len);
- sha512_final(&hash, hram);
+ sha512_init(&hash);
+ sha512_update(&hash, signature, 32);
+ sha512_update(&hash, public_key, 32);
+ sha512_update(&hash, message, message_len);
+ sha512_final(&hash, hram);
- sc_reduce(hram);
- sc_muladd(signature + 32, hram, private_key, r);
+ sc_reduce(hram);
+ sc_muladd(signature + 32, hram, private_key, r);
}