/usr/include/wolfssl/wolfcrypt/ed25519.h is in libwolfssl-dev 3.4.8+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 | /* ed25519.h
*
* Copyright (C) 2006-2015 wolfSSL Inc.
*
* This file is part of wolfSSL. (formerly known as CyaSSL)
*
* wolfSSL is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* wolfSSL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifndef WOLF_CRYPT_ED25519_H
#define WOLF_CRYPT_ED25519_H
#include <wolfssl/wolfcrypt/types.h>
#ifdef HAVE_ED25519
#include <wolfssl/wolfcrypt/fe_operations.h>
#include <wolfssl/wolfcrypt/ge_operations.h>
#include <wolfssl/wolfcrypt/random.h>
#include <wolfssl/wolfcrypt/sha512.h>
#ifdef __cplusplus
extern "C" {
#endif
/* info about EdDSA curve specifically ed25519, defined as an elliptic curve
over GF(p) */
/*
32, key size
"ED25519", curve name
"2^255-19", prime number
"SHA512", hash function
"-121665/121666", value of d
*/
#define ED25519_KEY_SIZE 32
#define ED25519_SIG_SIZE 64
/* An ED25519 Key */
typedef struct {
byte p[32]; /* compressed public key */
byte k[64]; /* private key : 32 secret -- 32 public */
} ed25519_key;
WOLFSSL_API
int wc_ed25519_make_key(RNG* rng, int keysize, ed25519_key* key);
WOLFSSL_API
int wc_ed25519_sign_msg(const byte* in, word32 inlen, byte* out,
word32 *outlen, ed25519_key* key);
WOLFSSL_API
int wc_ed25519_verify_msg(byte* sig, word32 siglen, const byte* msg,
word32 msglen, int* stat, ed25519_key* key);
WOLFSSL_API
int wc_ed25519_init(ed25519_key* key);
WOLFSSL_API
void wc_ed25519_free(ed25519_key* key);
WOLFSSL_API
int wc_ed25519_import_public(const byte* in, word32 inLen, ed25519_key* key);
WOLFSSL_API
int wc_ed25519_import_private_key(const byte* priv, word32 privSz,
const byte* pub, word32 pubSz, ed25519_key* key);
WOLFSSL_API
int wc_ed25519_export_public(ed25519_key*, byte* out, word32* outLen);
WOLFSSL_API
int wc_ed25519_export_private_only(ed25519_key* key, byte* out, word32* outLen);
/* size helper */
WOLFSSL_API
int wc_ed25519_size(ed25519_key* key);
WOLFSSL_API
int wc_ed25519_sig_size(ed25519_key* key);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* HAVE_ED25519 */
#endif /* WOLF_CRYPT_ED25519_H */
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