/usr/include/wolfssl/wolfcrypt/ed25519.h is in libwolfssl-dev 3.13.0+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 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 | /* ed25519.h
*
* Copyright (C) 2006-2017 wolfSSL Inc.
*
* This file is part of wolfSSL.
*
* 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 02110-1335, 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 WOLFSSL_ASYNC_CRYPT
#include <wolfssl/wolfcrypt/async.h>
#endif
#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 /* private key only */
#define ED25519_SIG_SIZE 64
#define ED25519_PUB_KEY_SIZE 32 /* compressed */
/* both private and public key */
#define ED25519_PRV_KEY_SIZE (ED25519_PUB_KEY_SIZE+ED25519_KEY_SIZE)
#ifndef WC_ED25519KEY_TYPE_DEFINED
typedef struct ed25519_key ed25519_key;
#define WC_ED25519KEY_TYPE_DEFINED
#endif
/* An ED25519 Key */
struct ed25519_key {
byte p[ED25519_PUB_KEY_SIZE]; /* compressed public key */
byte k[ED25519_PRV_KEY_SIZE]; /* private key : 32 secret -- 32 public */
#ifdef FREESCALE_LTC_ECC
/* uncompressed point coordinates */
byte pointX[ED25519_KEY_SIZE]; /* recovered X coordinate */
byte pointY[ED25519_KEY_SIZE]; /* Y coordinate is the public key with The most significant bit of the final octet always zero. */
#endif
#ifdef WOLFSSL_ASYNC_CRYPT
WC_ASYNC_DEV asyncDev;
#endif
};
WOLFSSL_API
int wc_ed25519_make_key(WC_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(const 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_only(const byte* priv, word32 privSz,
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);
WOLFSSL_API
int wc_ed25519_export_private(ed25519_key* key, byte* out, word32* outLen);
WOLFSSL_API
int wc_ed25519_export_key(ed25519_key* key,
byte* priv, word32 *privSz,
byte* pub, word32 *pubSz);
int wc_ed25519_check_key(ed25519_key* key);
/* size helper */
WOLFSSL_API
int wc_ed25519_size(ed25519_key* key);
WOLFSSL_API
int wc_ed25519_priv_size(ed25519_key* key);
WOLFSSL_API
int wc_ed25519_pub_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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