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68 lines
3.2 KiB
68 lines
3.2 KiB
/****************************************************************************** |
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* |
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* Copyright (C) 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 "bt_types.h" |
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#define DWORD_BITS 32 |
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#define DWORD_BYTES 4 |
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#define DWORD_BITS_SHIFT 5 |
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#define KEY_LENGTH_DWORDS_P192 6 |
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#define KEY_LENGTH_DWORDS_P256 8 |
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/* Arithmetic Operations */ |
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int multiprecision_compare(uint32_t* a, uint32_t* b, uint32_t keyLength); |
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int multiprecision_iszero(uint32_t* a, uint32_t keyLength); |
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void multiprecision_init(uint32_t* c, uint32_t keyLength); |
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void multiprecision_copy(uint32_t* c, uint32_t* a, uint32_t keyLength); |
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uint32_t multiprecision_dword_bits(uint32_t a); |
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uint32_t multiprecision_most_signdwords(uint32_t* a, uint32_t keyLength); |
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uint32_t multiprecision_most_signbits(uint32_t* a, uint32_t keyLength); |
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void multiprecision_inv_mod(uint32_t* aminus, uint32_t* a, uint32_t keyLength); |
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uint32_t multiprecision_add(uint32_t* c, uint32_t* a, uint32_t* b, |
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uint32_t keyLength); // c=a+b |
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void multiprecision_add_mod(uint32_t* c, uint32_t* a, uint32_t* b, |
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uint32_t keyLength); |
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uint32_t multiprecision_sub(uint32_t* c, uint32_t* a, uint32_t* b, |
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uint32_t keyLength); // c=a-b |
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void multiprecision_sub_mod(uint32_t* c, uint32_t* a, uint32_t* b, |
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uint32_t keyLength); |
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void multiprecision_rshift(uint32_t* c, uint32_t* a, |
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uint32_t keyLength); // c=a>>1, return carrier |
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void multiprecision_lshift_mod(uint32_t* c, uint32_t* a, |
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uint32_t keyLength); // c=a<<b, return carrier |
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uint32_t multiprecision_lshift(uint32_t* c, uint32_t* a, |
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uint32_t keyLength); // c=a<<b, return carrier |
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void multiprecision_mult(uint32_t* c, uint32_t* a, uint32_t* b, |
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uint32_t keyLength); // c=a*b |
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void multiprecision_mersenns_mult_mod(uint32_t* c, uint32_t* a, uint32_t* b, |
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uint32_t keyLength); |
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void multiprecision_mersenns_squa_mod(uint32_t* c, uint32_t* a, |
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uint32_t keyLength); |
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uint32_t multiprecision_lshift(uint32_t* c, uint32_t* a, uint32_t keyLength); |
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void multiprecision_mult(uint32_t* c, uint32_t* a, uint32_t* b, |
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uint32_t keyLength); |
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void multiprecision_fast_mod(uint32_t* c, uint32_t* a); |
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void multiprecision_fast_mod_P256(uint32_t* c, uint32_t* a);
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