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204 lines
6.5 KiB
C
204 lines
6.5 KiB
C
/* ed448.h
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*
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* Copyright (C) 2006-2021 wolfSSL Inc.
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*
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* This file is part of wolfSSL.
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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 02110-1335, USA
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*/
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/*!
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\file wolfssl/wolfcrypt/ed448.h
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*/
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#ifndef WOLF_CRYPT_ED448_H
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#define WOLF_CRYPT_ED448_H
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#include <libs/libwolfssl/wolfcrypt/types.h>
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#ifdef HAVE_ED448
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#include <libs/libwolfssl/wolfcrypt/fe_448.h>
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#include <libs/libwolfssl/wolfcrypt/ge_448.h>
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#include <libs/libwolfssl/wolfcrypt/random.h>
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#ifndef WOLFSSL_SHAKE256
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#error ED448 requires SHAKE256
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#endif
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#include <libs/libwolfssl/wolfcrypt/sha3.h>
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#ifdef WOLFSSL_ASYNC_CRYPT
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#include <libs/libwolfssl/wolfcrypt/async.h>
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#endif
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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 ed448, defined as an elliptic curve
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* over GF(p)
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*
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* 56 key size
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* "ED448" curve name
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* "2^448-2^224-1" prime number
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* "-39081" value of d
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* "SHAKE256" hash function
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*/
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#define ED448_KEY_SIZE 57 /* private key only */
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#define ED448_SIG_SIZE 114 /* two elements */
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#define ED448_PUB_KEY_SIZE 57 /* compressed */
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/* both private and public key */
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#define ED448_PRV_KEY_SIZE (ED448_PUB_KEY_SIZE+ED448_KEY_SIZE)
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#define ED448_PREHASH_SIZE 64
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enum {
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Ed448 = 0,
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Ed448ph = 1,
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};
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#ifndef WC_ED448KEY_TYPE_DEFINED
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typedef struct ed448_key ed448_key;
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#define WC_ED448KEY_TYPE_DEFINED
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#endif
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/* An ED448 Key */
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struct ed448_key {
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byte p[ED448_PUB_KEY_SIZE]; /* compressed public key */
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byte k[ED448_PRV_KEY_SIZE]; /* private key : 56 secret -- 56 public */
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#ifdef FREESCALE_LTC_ECC
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/* uncompressed point coordinates */
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byte pointX[ED448_KEY_SIZE]; /* recovered X coordinate */
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byte pointY[ED448_KEY_SIZE]; /* Y coordinate is the public key with The most significant bit of the final octet always zero. */
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#endif
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word16 pubKeySet:1;
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#ifdef WOLFSSL_ASYNC_CRYPT
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WC_ASYNC_DEV asyncDev;
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#endif
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#if defined(WOLF_CRYPTO_CB)
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int devId;
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#endif
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void *heap;
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#ifdef WOLFSSL_ED448_PERSISTENT_SHA
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wc_Shake sha;
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int sha_clean_flag;
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#endif
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};
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WOLFSSL_API
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int wc_ed448_make_public(ed448_key* key, unsigned char* pubKey,
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word32 pubKeySz);
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WOLFSSL_API
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int wc_ed448_make_key(WC_RNG* rng, int keysize, ed448_key* key);
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#ifdef HAVE_ED448_SIGN
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WOLFSSL_API
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int wc_ed448_sign_msg(const byte* in, word32 inLen, byte* out, word32 *outLen,
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ed448_key* key, const byte* context, byte contextLen);
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WOLFSSL_API
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int wc_ed448ph_sign_hash(const byte* hash, word32 hashLen, byte* out,
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word32 *outLen, ed448_key* key,
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const byte* context, byte contextLen);
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WOLFSSL_API
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int wc_ed448_sign_msg_ex(const byte* in, word32 inLen, byte* out,
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word32 *outLen, ed448_key* key, byte type,
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const byte* context, byte contextLen);
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WOLFSSL_API
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int wc_ed448ph_sign_msg(const byte* in, word32 inLen, byte* out,
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word32 *outLen, ed448_key* key, const byte* context,
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byte contextLen);
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#endif /* HAVE_ED448_SIGN */
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#ifdef HAVE_ED448_VERIFY
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WOLFSSL_API
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int wc_ed448_verify_msg_ex(const byte* sig, word32 sigLen, const byte* msg,
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word32 msgLen, int* res, ed448_key* key,
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byte type, const byte* context, byte contextLen);
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#ifdef WOLFSSL_ED448_STREAMING_VERIFY
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WOLFSSL_API
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int wc_ed448_verify_msg_init(const byte* sig, word32 sigLen, ed448_key* key,
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byte type, const byte* context, byte contextLen);
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WOLFSSL_API
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int wc_ed448_verify_msg_update(const byte* msgSegment, word32 msgSegmentLen,
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ed448_key* key);
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WOLFSSL_API
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int wc_ed448_verify_msg_final(const byte* sig, word32 sigLen,
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int* stat, ed448_key* key);
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#endif /* WOLFSSL_ED448_STREAMING_VERIFY */
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WOLFSSL_API
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int wc_ed448_verify_msg(const byte* sig, word32 sigLen, const byte* msg,
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word32 msgLen, int* stat, ed448_key* key,
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const byte* context, byte contextLen);
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WOLFSSL_API
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int wc_ed448ph_verify_hash(const byte* sig, word32 sigLen, const byte* hash,
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word32 hashLen, int* stat, ed448_key* key,
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const byte* context, byte contextLen);
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WOLFSSL_API
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int wc_ed448ph_verify_msg(const byte* sig, word32 sigLen, const byte* msg,
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word32 msgLen, int* stat, ed448_key* key,
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const byte* context, byte contextLen);
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#endif /* HAVE_ED448_VERIFY */
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WOLFSSL_API
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int wc_ed448_init_ex(ed448_key* key, void *heap, int devId);
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WOLFSSL_API
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int wc_ed448_init(ed448_key* key);
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WOLFSSL_API
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void wc_ed448_free(ed448_key* key);
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#ifdef HAVE_ED448_KEY_IMPORT
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WOLFSSL_API
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int wc_ed448_import_public(const byte* in, word32 inLen, ed448_key* key);
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WOLFSSL_API
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int wc_ed448_import_private_only(const byte* priv, word32 privSz,
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ed448_key* key);
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WOLFSSL_API
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int wc_ed448_import_private_key(const byte* priv, word32 privSz,
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const byte* pub, word32 pubSz, ed448_key* key);
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#endif /* HAVE_ED448_KEY_IMPORT */
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#ifdef HAVE_ED448_KEY_EXPORT
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WOLFSSL_API
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int wc_ed448_export_public(ed448_key*, byte* out, word32* outLen);
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WOLFSSL_API
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int wc_ed448_export_private_only(ed448_key* key, byte* out, word32* outLen);
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WOLFSSL_API
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int wc_ed448_export_private(ed448_key* key, byte* out, word32* outLen);
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WOLFSSL_API
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int wc_ed448_export_key(ed448_key* key, byte* priv, word32 *privSz,
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byte* pub, word32 *pubSz);
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#endif /* HAVE_ED448_KEY_EXPORT */
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WOLFSSL_API
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int wc_ed448_check_key(ed448_key* key);
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/* size helper */
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WOLFSSL_API
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int wc_ed448_size(ed448_key* key);
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WOLFSSL_API
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int wc_ed448_priv_size(ed448_key* key);
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WOLFSSL_API
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int wc_ed448_pub_size(ed448_key* key);
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WOLFSSL_API
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int wc_ed448_sig_size(ed448_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_ED448 */
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#endif /* WOLF_CRYPT_ED448_H */
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