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| 1 | +// Copyright (c) 2022, The Monero Project |
| 2 | +// |
| 3 | +// All rights reserved. |
| 4 | +// |
| 5 | +// Redistribution and use in source and binary forms, with or without modification, are |
| 6 | +// permitted provided that the following conditions are met: |
| 7 | +// |
| 8 | +// 1. Redistributions of source code must retain the above copyright notice, this list of |
| 9 | +// conditions and the following disclaimer. |
| 10 | +// |
| 11 | +// 2. Redistributions in binary form must reproduce the above copyright notice, this list |
| 12 | +// of conditions and the following disclaimer in the documentation and/or other |
| 13 | +// materials provided with the distribution. |
| 14 | +// |
| 15 | +// 3. Neither the name of the copyright holder nor the names of its contributors may be |
| 16 | +// used to endorse or promote products derived from this software without specific |
| 17 | +// prior written permission. |
| 18 | +// |
| 19 | +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY |
| 20 | +// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 21 | +// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL |
| 22 | +// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 23 | +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 24 | +// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 25 | +// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 26 | +// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF |
| 27 | +// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 28 | + |
| 29 | +//paired header |
| 30 | +#include "core_types.h" |
| 31 | + |
| 32 | +//local headers |
| 33 | +#include "crypto/crypto.h" |
| 34 | + |
| 35 | +//third party headers |
| 36 | +#include <cstring> |
| 37 | + |
| 38 | +//standard headers |
| 39 | + |
| 40 | +namespace carrot |
| 41 | +{ |
| 42 | +//------------------------------------------------------------------------------------------------------------------- |
| 43 | +//------------------------------------------------------------------------------------------------------------------- |
| 44 | +template <std::size_t Sz> |
| 45 | +static void xor_bytes(const unsigned char(&a)[Sz], const unsigned char(&b)[Sz], unsigned char(&c_out)[Sz]) |
| 46 | +{ |
| 47 | + for (std::size_t i{0}; i < Sz; ++i) |
| 48 | + c_out[i] = a[i] ^ b[i]; |
| 49 | +} |
| 50 | +//------------------------------------------------------------------------------------------------------------------- |
| 51 | +//------------------------------------------------------------------------------------------------------------------- |
| 52 | +template <typename T> |
| 53 | +static T xor_bytes(const T &a, const T &b) |
| 54 | +{ |
| 55 | + T temp; |
| 56 | + xor_bytes(a.bytes, b.bytes, temp.bytes); |
| 57 | + return temp; |
| 58 | +} |
| 59 | +//------------------------------------------------------------------------------------------------------------------- |
| 60 | +//------------------------------------------------------------------------------------------------------------------- |
| 61 | +bool operator==(const janus_anchor_t &a, const janus_anchor_t &b) |
| 62 | +{ |
| 63 | + return memcmp(&a, &b, sizeof(janus_anchor_t)) == 0; |
| 64 | +} |
| 65 | +//------------------------------------------------------------------------------------------------------------------- |
| 66 | +janus_anchor_t operator^(const janus_anchor_t &a, const janus_anchor_t &b) |
| 67 | +{ |
| 68 | + return xor_bytes(a, b); |
| 69 | +} |
| 70 | +//------------------------------------------------------------------------------------------------------------------- |
| 71 | +bool operator==(const encrypted_amount_t &a, const encrypted_amount_t &b) |
| 72 | +{ |
| 73 | + return memcmp(&a, &b, sizeof(encrypted_amount_t)) == 0; |
| 74 | +} |
| 75 | +//------------------------------------------------------------------------------------------------------------------- |
| 76 | +encrypted_amount_t operator^(const encrypted_amount_t &a, const encrypted_amount_t &b) |
| 77 | +{ |
| 78 | + return xor_bytes(a, b); |
| 79 | +} |
| 80 | +//------------------------------------------------------------------------------------------------------------------- |
| 81 | +bool operator==(const payment_id_t &a, const payment_id_t &b) |
| 82 | +{ |
| 83 | + return memcmp(&a, &b, sizeof(payment_id_t)) == 0; |
| 84 | +} |
| 85 | +//------------------------------------------------------------------------------------------------------------------- |
| 86 | +payment_id_t operator^(const payment_id_t &a, const payment_id_t &b) |
| 87 | +{ |
| 88 | + return xor_bytes(a, b); |
| 89 | +} |
| 90 | +//------------------------------------------------------------------------------------------------------------------- |
| 91 | +bool operator==(const input_context_t &a, const input_context_t &b) |
| 92 | +{ |
| 93 | + return memcmp(&a, &b, sizeof(input_context_t)) == 0; |
| 94 | +} |
| 95 | +//------------------------------------------------------------------------------------------------------------------- |
| 96 | +bool operator==(const view_tag_t &a, const view_tag_t &b) |
| 97 | +{ |
| 98 | + return memcmp(&a, &b, sizeof(view_tag_t)) == 0; |
| 99 | +} |
| 100 | +//------------------------------------------------------------------------------------------------------------------- |
| 101 | +janus_anchor_t gen_janus_anchor() |
| 102 | +{ |
| 103 | + return crypto::rand<janus_anchor_t>(); |
| 104 | +} |
| 105 | +//------------------------------------------------------------------------------------------------------------------- |
| 106 | +payment_id_t gen_payment_id() |
| 107 | +{ |
| 108 | + return crypto::rand<payment_id_t>(); |
| 109 | +} |
| 110 | +//------------------------------------------------------------------------------------------------------------------- |
| 111 | +view_tag_t gen_view_tag() |
| 112 | +{ |
| 113 | + return crypto::rand<view_tag_t>(); |
| 114 | +} |
| 115 | +//------------------------------------------------------------------------------------------------------------------- |
| 116 | +input_context_t gen_input_context() |
| 117 | +{ |
| 118 | + return crypto::rand<input_context_t>(); |
| 119 | +} |
| 120 | +//------------------------------------------------------------------------------------------------------------------- |
| 121 | +} //namespace carrot |
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