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56 lines
2.7 KiB
56 lines
2.7 KiB
4 months ago
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/******************************************************************************
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*
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* Copyright 2006-2015 Broadcom Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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******************************************************************************/
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/*******************************************************************************
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*
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* This file contains simple pairing algorithms
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*
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******************************************************************************/
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#pragma once
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#include <cstdint>
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namespace bluetooth {
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namespace security {
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namespace ecc {
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#define KEY_LENGTH_DWORDS_P256 8
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/* Arithmetic Operations*/
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int multiprecision_compare(const uint32_t* a, const uint32_t* b);
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int multiprecision_iszero(const uint32_t* a);
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void multiprecision_init(uint32_t* c);
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void multiprecision_copy(uint32_t* c, const uint32_t* a);
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uint32_t multiprecision_dword_bits(uint32_t a);
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uint32_t multiprecision_most_signdwords(const uint32_t* a);
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uint32_t multiprecision_most_signbits(const uint32_t* a);
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void multiprecision_inv_mod(uint32_t* aminus, uint32_t* a, const uint32_t* modp);
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uint32_t multiprecision_add(uint32_t* c, const uint32_t* a, const uint32_t* b); // c=a+b
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void multiprecision_add_mod(uint32_t* c, const uint32_t* a, const uint32_t* b, const uint32_t* modp);
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uint32_t multiprecision_sub(uint32_t* c, const uint32_t* a, const uint32_t* b); // c=a-b
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void multiprecision_sub_mod(uint32_t* c, const uint32_t* a, const uint32_t* b, const uint32_t* modp);
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void multiprecision_rshift(uint32_t* c, const uint32_t* a); // c=a>>1, return carrier
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void multiprecision_lshift_mod(uint32_t* c, const uint32_t* a, const uint32_t* modp); // c=a<<b, return carrier
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uint32_t multiprecision_lshift(uint32_t* c, const uint32_t* a);
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void multiprecision_mult(uint32_t* c, const uint32_t* a, const uint32_t* b); // c=a*b
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void multiprecision_mersenns_mult_mod(uint32_t* c, const uint32_t* a, const uint32_t* b, const uint32_t* modp);
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void multiprecision_mersenns_squa_mod(uint32_t* c, const uint32_t* a, const uint32_t* modp);
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void multiprecision_fast_mod_P256(uint32_t* c, const uint32_t* a, const uint32_t* modp);
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} // namespace ecc
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} // namespace security
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} // namespace bluetooth
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