60 lines
1.7 KiB
C
60 lines
1.7 KiB
C
/*
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ninty-233
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Library for ECC operations using keys defined with
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sect233r1 / NIST B-233 -- the curve/domain parameters
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used by Nintendo in the iQue Player and Wii.
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Copyright © 2018, 2019 Jbop (https://github.com/jbop1626)
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This file is a part of ninty-233.
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ninty-233 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 3 of the License, or
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(at your option) any later version.
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ninty-233 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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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef NINTY_233_H
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#define NINTY_233_H
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#include <stdint.h>
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#include "ecc/ecc.h"
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#include "mini-gmp/mini-gmp.h"
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#if defined (__cplusplus)
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extern "C" {
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#endif
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/*
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Multi-precision integer <--> GF(2^m) element conversions
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*/
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void mpz_to_gf2m(const mpz_t src, element dst);
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void gf2m_to_mpz(const element src, mpz_t dst);
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/*
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SHA-1 result as multi-precision integer
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*/
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#define NOT_IQUE_HASH 0
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#define IQUE_HASH 1
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void sha1(const uint8_t * input, uint32_t input_length, unsigned ique_flag, mpz_t hash_out);
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/*
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ECC algorithms
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*/
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void ecdh(const element private_key, const ec_point * public_key, ec_point * shared_secret_output);
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void ecdsa_sign(const mpz_t hash, const element private_key, element r_out, element s_out);
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int ecdsa_verify(const mpz_t hash, const ec_point * public_key, const element r_input, const element s_input);
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#if defined (__cplusplus)
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}
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#endif
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#endif
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