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95 lines
2.7 KiB
C
95 lines
2.7 KiB
C
10 years ago
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/* ed25519.h
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*
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* Copyright (C) 2006-2015 wolfSSL Inc.
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*
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* This file is part of wolfSSL. (formerly known as CyaSSL)
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*
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* wolfSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* wolfSSL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifndef WOLF_CRYPT_ED25519_H
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#define WOLF_CRYPT_ED25519_H
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#include <wolfssl/wolfcrypt/types.h>
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#ifdef HAVE_ED25519
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#include <wolfssl/wolfcrypt/fe_operations.h>
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#include <wolfssl/wolfcrypt/ge_operations.h>
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#include <wolfssl/wolfcrypt/random.h>
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#include <wolfssl/wolfcrypt/sha512.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* info about EdDSA curve specifically ed25519, defined as an elliptic curve
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over GF(p) */
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/*
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32, key size
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"ED25519", curve name
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"2^255-19", prime number
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"SHA512", hash function
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"-121665/121666", value of d
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*/
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#define ED25519_KEY_SIZE 32
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#define ED25519_SIG_SIZE 64
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/* An ED25519 Key */
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typedef struct {
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byte p[32]; /* compressed public key */
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byte k[64]; /* private key : 32 secret -- 32 public */
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} ed25519_key;
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WOLFSSL_API
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int wc_ed25519_make_key(RNG* rng, int keysize, ed25519_key* key);
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WOLFSSL_API
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int wc_ed25519_sign_msg(const byte* in, word32 inlen, byte* out,
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word32 *outlen, ed25519_key* key);
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WOLFSSL_API
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int wc_ed25519_verify_msg(byte* sig, word32 siglen, const byte* msg,
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word32 msglen, int* stat, ed25519_key* key);
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WOLFSSL_API
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int wc_ed25519_init(ed25519_key* key);
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WOLFSSL_API
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void wc_ed25519_free(ed25519_key* key);
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WOLFSSL_API
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int wc_ed25519_import_public(const byte* in, word32 inLen, ed25519_key* key);
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WOLFSSL_API
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int wc_ed25519_import_private_key(const byte* priv, word32 privSz,
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const byte* pub, word32 pubSz, ed25519_key* key);
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WOLFSSL_API
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int wc_ed25519_export_public(ed25519_key*, byte* out, word32* outLen);
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WOLFSSL_API
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int wc_ed25519_export_private_only(ed25519_key* key, byte* out, word32* outLen);
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/* size helper */
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WOLFSSL_API
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int wc_ed25519_size(ed25519_key* key);
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WOLFSSL_API
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int wc_ed25519_sig_size(ed25519_key* key);
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* HAVE_ED25519 */
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#endif /* WOLF_CRYPT_ED25519_H */
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