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348 lines
17 KiB
C++
348 lines
17 KiB
C++
// Copyright (c) 2017-2024, The Monero Project
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include <cstdint>
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#include <gtest/gtest.h>
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#include <memory>
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#include <sstream>
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#include <string>
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extern "C"
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{
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#include "crypto/crypto-ops.h"
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}
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#include "crypto/generators.h"
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#include "cryptonote_basic/cryptonote_basic_impl.h"
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#include "cryptonote_basic/merge_mining.h"
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#include "ringct/rctOps.h"
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#include "ringct/rctTypes.h"
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namespace
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{
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static constexpr const std::uint8_t source[] = {
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0x8b, 0x65, 0x59, 0x70, 0x15, 0x37, 0x99, 0xaf, 0x2a, 0xea, 0xdc, 0x9f, 0xf1, 0xad, 0xd0, 0xea,
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0x6c, 0x72, 0x51, 0xd5, 0x41, 0x54, 0xcf, 0xa9, 0x2c, 0x17, 0x3a, 0x0d, 0xd3, 0x9c, 0x1f, 0x94,
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0x6c, 0x72, 0x51, 0xd5, 0x41, 0x54, 0xcf, 0xa9, 0x2c, 0x17, 0x3a, 0x0d, 0xd3, 0x9c, 0x1f, 0x94,
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0x8b, 0x65, 0x59, 0x70, 0x15, 0x37, 0x99, 0xaf, 0x2a, 0xea, 0xdc, 0x9f, 0xf1, 0xad, 0xd0, 0xea
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};
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static constexpr const char expected[] =
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"8b655970153799af2aeadc9ff1add0ea6c7251d54154cfa92c173a0dd39c1f94"
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"6c7251d54154cfa92c173a0dd39c1f948b655970153799af2aeadc9ff1add0ea";
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template<typename T> void *addressof(T &t) { return &t; }
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template<> void *addressof(crypto::secret_key &k) { return addressof(unwrap(unwrap(k))); }
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template<typename T>
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bool is_formatted()
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{
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T value{};
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static_assert(alignof(T) == 1, "T must have 1 byte alignment");
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static_assert(sizeof(T) <= sizeof(source), "T is too large for source");
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static_assert(sizeof(T) * 2 <= sizeof(expected), "T is too large for destination");
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std::memcpy(addressof(value), source, sizeof(T));
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std::stringstream out;
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out << "BEGIN" << value << "END";
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return out.str() == "BEGIN<" + std::string{expected, sizeof(T) * 2} + ">END";
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}
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}
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TEST(Crypto, Ostream)
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{
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EXPECT_TRUE(is_formatted<crypto::hash8>());
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EXPECT_TRUE(is_formatted<crypto::hash>());
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EXPECT_TRUE(is_formatted<crypto::public_key>());
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EXPECT_TRUE(is_formatted<crypto::secret_key>());
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EXPECT_TRUE(is_formatted<crypto::signature>());
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EXPECT_TRUE(is_formatted<crypto::key_derivation>());
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EXPECT_TRUE(is_formatted<crypto::key_image>());
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}
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TEST(Crypto, null_keys)
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{
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char zero[32];
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memset(zero, 0, 32);
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ASSERT_EQ(memcmp(crypto::null_skey.data, zero, 32), 0);
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ASSERT_EQ(memcmp(crypto::null_pkey.data, zero, 32), 0);
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}
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TEST(Crypto, verify_32)
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{
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// all bytes are treated the same, so we can brute force just one byte
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unsigned char k0[32] = {0}, k1[32] = {0};
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for (unsigned int i0 = 0; i0 < 256; ++i0)
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{
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k0[0] = i0;
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for (unsigned int i1 = 0; i1 < 256; ++i1)
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{
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k1[0] = i1;
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ASSERT_EQ(!crypto_verify_32(k0, k1), i0 == i1);
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}
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}
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}
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TEST(Crypto, tree_branch)
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{
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crypto::hash inputs[6];
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crypto::hash branch[8];
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crypto::hash branch_1[8 + 1];
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crypto::hash root, root2;
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size_t depth;
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uint32_t path, path2;
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auto hasher = [](const crypto::hash &h0, const crypto::hash &h1) -> crypto::hash
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{
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char buffer[64];
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memcpy(buffer, &h0, 32);
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memcpy(buffer + 32, &h1, 32);
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crypto::hash res;
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cn_fast_hash(buffer, 64, res);
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return res;
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};
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for (int n = 0; n < 6; ++n)
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{
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memset(&inputs[n], 0, 32);
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inputs[n].data[0] = n + 1;
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}
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// empty
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ASSERT_FALSE(crypto::tree_branch((const char(*)[32])inputs, 0, crypto::null_hash.data, (char(*)[32])branch, &depth, &path));
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// one, matching
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ASSERT_TRUE(crypto::tree_branch((const char(*)[32])inputs, 1, inputs[0].data, (char(*)[32])branch, &depth, &path));
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ASSERT_EQ(depth, 0);
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ASSERT_EQ(path, 0);
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ASSERT_TRUE(crypto::tree_path(1, 0, &path2));
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ASSERT_EQ(path, path2);
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crypto::tree_hash((const char(*)[32])inputs, 1, root.data);
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ASSERT_EQ(root, inputs[0]);
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ASSERT_TRUE(crypto::is_branch_in_tree(inputs[0].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[1].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(crypto::null_hash.data, root.data, (const char(*)[32])branch, depth, path));
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// one, not found
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ASSERT_FALSE(crypto::tree_branch((const char(*)[32])inputs, 1, inputs[1].data, (char(*)[32])branch, &depth, &path));
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// two, index 0
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ASSERT_TRUE(crypto::tree_branch((const char(*)[32])inputs, 2, inputs[0].data, (char(*)[32])branch, &depth, &path));
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ASSERT_EQ(depth, 1);
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ASSERT_EQ(path, 0);
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ASSERT_TRUE(crypto::tree_path(2, 0, &path2));
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ASSERT_EQ(path, path2);
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ASSERT_EQ(branch[0], inputs[1]);
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crypto::tree_hash((const char(*)[32])inputs, 2, root.data);
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ASSERT_EQ(root, hasher(inputs[0], inputs[1]));
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ASSERT_TRUE(crypto::is_branch_in_tree(inputs[0].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[1].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[2].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(crypto::null_hash.data, root.data, (const char(*)[32])branch, depth, path));
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// two, index 1
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ASSERT_TRUE(crypto::tree_branch((const char(*)[32])inputs, 2, inputs[1].data, (char(*)[32])branch, &depth, &path));
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ASSERT_EQ(depth, 1);
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ASSERT_EQ(path, 1);
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ASSERT_TRUE(crypto::tree_path(2, 1, &path2));
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ASSERT_EQ(path, path2);
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ASSERT_EQ(branch[0], inputs[0]);
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crypto::tree_hash((const char(*)[32])inputs, 2, root.data);
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ASSERT_EQ(root, hasher(inputs[0], inputs[1]));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[0].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_TRUE(crypto::is_branch_in_tree(inputs[1].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[2].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(crypto::null_hash.data, root.data, (const char(*)[32])branch, depth, path));
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// two, not found
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ASSERT_FALSE(crypto::tree_branch((const char(*)[32])inputs, 2, inputs[2].data, (char(*)[32])branch, &depth, &path));
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// a b c 0
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// x y
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// z
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// three, index 0
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ASSERT_TRUE(crypto::tree_branch((const char(*)[32])inputs, 3, inputs[0].data, (char(*)[32])branch, &depth, &path));
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ASSERT_GE(depth, 1);
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ASSERT_LE(depth, 2);
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ASSERT_TRUE(crypto::tree_path(3, 0, &path2));
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ASSERT_EQ(path, path2);
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crypto::tree_hash((const char(*)[32])inputs, 3, root.data);
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ASSERT_EQ(root, hasher(inputs[0], hasher(inputs[1], inputs[2])));
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ASSERT_TRUE(crypto::is_branch_in_tree(inputs[0].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[1].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[2].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[3].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(crypto::null_hash.data, root.data, (const char(*)[32])branch, depth, path));
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// three, index 1
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ASSERT_TRUE(crypto::tree_branch((const char(*)[32])inputs, 3, inputs[1].data, (char(*)[32])branch, &depth, &path));
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ASSERT_GE(depth, 1);
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ASSERT_LE(depth, 2);
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ASSERT_TRUE(crypto::tree_path(3, 1, &path2));
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ASSERT_EQ(path, path2);
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crypto::tree_hash((const char(*)[32])inputs, 3, root.data);
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ASSERT_EQ(root, hasher(inputs[0], hasher(inputs[1], inputs[2])));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[0].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_TRUE(crypto::is_branch_in_tree(inputs[1].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[2].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[3].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(crypto::null_hash.data, root.data, (const char(*)[32])branch, depth, path));
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// three, index 2
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ASSERT_TRUE(crypto::tree_branch((const char(*)[32])inputs, 3, inputs[2].data, (char(*)[32])branch, &depth, &path));
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ASSERT_GE(depth, 1);
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ASSERT_LE(depth, 2);
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ASSERT_TRUE(crypto::tree_path(3, 2, &path2));
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ASSERT_EQ(path, path2);
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crypto::tree_hash((const char(*)[32])inputs, 3, root.data);
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[0].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[1].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_TRUE(crypto::is_branch_in_tree(inputs[2].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[3].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(crypto::null_hash.data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_TRUE(crypto::tree_branch_hash(inputs[2].data, (const char(*)[32])branch, depth, path, root2.data));
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ASSERT_EQ(root, root2);
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// three, not found
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ASSERT_FALSE(crypto::tree_branch((const char(*)[32])inputs, 3, inputs[3].data, (char(*)[32])branch, &depth, &path));
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// a b c d e 0 0 0
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// x y
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// z
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// w
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// five, index 0
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ASSERT_TRUE(crypto::tree_branch((const char(*)[32])inputs, 5, inputs[0].data, (char(*)[32])branch, &depth, &path));
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ASSERT_GE(depth, 2);
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ASSERT_LE(depth, 3);
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ASSERT_TRUE(crypto::tree_path(5, 0, &path2));
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ASSERT_EQ(path, path2);
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crypto::tree_hash((const char(*)[32])inputs, 5, root.data);
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ASSERT_TRUE(crypto::is_branch_in_tree(inputs[0].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[1].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[2].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[3].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[4].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[5].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(crypto::null_hash.data, root.data, (const char(*)[32])branch, depth, path));
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// five, index 1
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ASSERT_TRUE(crypto::tree_branch((const char(*)[32])inputs, 5, inputs[1].data, (char(*)[32])branch, &depth, &path));
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ASSERT_GE(depth, 2);
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ASSERT_LE(depth, 3);
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ASSERT_TRUE(crypto::tree_path(5, 1, &path2));
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ASSERT_EQ(path, path2);
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crypto::tree_hash((const char(*)[32])inputs, 5, root.data);
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[0].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_TRUE(crypto::is_branch_in_tree(inputs[1].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[2].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[3].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[4].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[5].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(crypto::null_hash.data, root.data, (const char(*)[32])branch, depth, path));
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// five, index 2
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ASSERT_TRUE(crypto::tree_branch((const char(*)[32])inputs, 5, inputs[2].data, (char(*)[32])branch, &depth, &path));
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ASSERT_GE(depth, 2);
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ASSERT_LE(depth, 3);
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ASSERT_TRUE(crypto::tree_path(5, 2, &path2));
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ASSERT_EQ(path, path2);
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crypto::tree_hash((const char(*)[32])inputs, 5, root.data);
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[0].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[1].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_TRUE(crypto::is_branch_in_tree(inputs[2].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[3].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[4].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[5].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(crypto::null_hash.data, root.data, (const char(*)[32])branch, depth, path));
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// five, index 4
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ASSERT_TRUE(crypto::tree_branch((const char(*)[32])inputs, 5, inputs[4].data, (char(*)[32])branch, &depth, &path));
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ASSERT_GE(depth, 2);
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ASSERT_LE(depth, 3);
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ASSERT_TRUE(crypto::tree_path(5, 4, &path2));
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ASSERT_EQ(path, path2);
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crypto::tree_hash((const char(*)[32])inputs, 5, root.data);
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[0].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[1].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[2].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[3].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_TRUE(crypto::is_branch_in_tree(inputs[4].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[5].data, root.data, (const char(*)[32])branch, depth, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(crypto::null_hash.data, root.data, (const char(*)[32])branch, depth, path));
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// a version with an extra (dummy) hash
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memcpy(branch_1, branch, sizeof(branch));
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branch_1[depth] = crypto::null_hash;
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[4].data, root.data, (const char(*)[32])branch, depth - 1, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[4].data, root.data, (const char(*)[32])branch_1, depth + 1, path));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[4].data, root.data, (const char(*)[32])branch, depth, path ^ 1));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[4].data, root.data, (const char(*)[32])branch, depth, path ^ 2));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[4].data, root.data, (const char(*)[32])branch, depth, path ^ 3));
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ASSERT_FALSE(crypto::is_branch_in_tree(inputs[4].data, root.data, (const char(*)[32])(branch_1 + 1), depth, path));
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// five, not found
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ASSERT_FALSE(crypto::tree_branch((const char(*)[32])inputs, 5, crypto::null_hash.data, (char(*)[32])branch, &depth, &path));
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// depth encoding roundtrip
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for (uint32_t n_chains = 1; n_chains <= 256; ++n_chains)
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{
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for (uint32_t nonce = 0xffffffff - 512; nonce != 1025; ++nonce)
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{
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const uint64_t depth = cryptonote::encode_mm_depth(n_chains, nonce);
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uint32_t n_chains_2, nonce_2;
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ASSERT_TRUE(cryptonote::decode_mm_depth(depth, n_chains_2, nonce_2));
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ASSERT_EQ(n_chains, n_chains_2);
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ASSERT_EQ(nonce, nonce_2);
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}
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}
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// 257 chains is too much
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try { cryptonote::encode_mm_depth(257, 0); ASSERT_TRUE(false); }
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catch (...) {}
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}
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TEST(Crypto, generator_consistency)
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{
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// crypto/generators.h
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const crypto::public_key G{crypto::get_G()};
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const crypto::public_key H{crypto::get_H()};
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const ge_p3 H_p3 = crypto::get_H_p3();
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// crypto/crypto-ops.h
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ASSERT_TRUE(memcmp(&H_p3, &ge_p3_H, sizeof(ge_p3)) == 0);
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// ringct/rctOps.h
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ASSERT_TRUE(memcmp(G.data, rct::G.bytes, 32) == 0);
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// ringct/rctTypes.h
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ASSERT_TRUE(memcmp(H.data, rct::H.bytes, 32) == 0);
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}
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