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Merge pull request #33 from moneroexamples/matching_inputs_and_ouputs_public_keys
Matching inputs and ouputs public keys
This commit is contained in:
commit
09dbca87ba
2 changed files with 34 additions and 10 deletions
42
src/page.h
42
src/page.h
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@ -1372,8 +1372,14 @@ public:
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vector<txin_to_key> input_key_imgs = xmreg::get_key_images(tx);
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vector<txin_to_key> input_key_imgs = xmreg::get_key_images(tx);
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// to hold sum of xmr in matched mixins, those that
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// perfectly match mixin public key with outputs in mixn_tx.
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uint64_t sum_mixin_xmr {0};
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uint64_t sum_mixin_xmr {0};
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// this is used for the final check. we assument that number of
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// parefct matches must be equal to number of inputs in a tx.
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uint64_t no_of_matched_mixins {0};
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for (const txin_to_key& in_key: input_key_imgs)
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for (const txin_to_key& in_key: input_key_imgs)
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{
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{
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@ -1415,7 +1421,6 @@ public:
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size_t count = 0;
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size_t count = 0;
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// for each found output public key check if its ours or not
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// for each found output public key check if its ours or not
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//for (const cryptonote::output_data_t& output_data: mixin_outputs)
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for (const uint64_t& abs_offset: absolute_offsets)
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for (const uint64_t& abs_offset: absolute_offsets)
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{
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{
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@ -1581,26 +1586,35 @@ public:
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{"mine_output" , mine_output},
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{"mine_output" , mine_output},
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{"out_idx" , to_string(output_idx_in_tx)},
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{"out_idx" , to_string(output_idx_in_tx)},
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{"formed_output_pk", out_pub_key_str},
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{"formed_output_pk", out_pub_key_str},
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{"out_in_match" , (amount == in_key.amount)},
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{"out_in_match" , (txout_k.key == output_data.pubkey)},
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{"amount" , xmreg::xmr_amount_to_str(amount)}
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{"amount" , xmreg::xmr_amount_to_str(amount)}
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});
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});
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//cout << "txout_k.key == output_data.pubkey" << endl;
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//cout << pod_to_hex(txout_k.key) << " == " << pod_to_hex(output_data.pubkey) << endl;
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if (mine_output)
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if (mine_output)
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{
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{
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// cout << " - " << pod_to_hex(txout_k.key)
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// <<": " << mine_output << " amount: "
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// << xmreg::xmr_amount_to_str(amount)
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// << endl;
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found_something = true;
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found_something = true;
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show_key_images = true;
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show_key_images = true;
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// increase sum_mixin_xmr only when
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// public key of an outputs used in ring signature,
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// matches a public key in a mixin_tx
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if (txout_k.key != output_data.pubkey)
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{
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continue;
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}
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no_of_matched_mixins++;
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// for regular txs, just concentrated on outputs
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// for regular txs, just concentrated on outputs
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// which have same amount as the key image.
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// which have same amount as the key image.
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// for ringct its not possible to know for sure amount
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// for ringct its not possible to know for sure amount
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// in key image without spend key, so we just use all
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// in key image without spend key, so we just use all
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// for regular/old txs there must be also a match
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// in amounts, not only in output public keys
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if (mixin_tx.version < 2 && amount == in_key.amount)
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if (mixin_tx.version < 2 && amount == in_key.amount)
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{
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{
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sum_mixin_xmr += amount;
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sum_mixin_xmr += amount;
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@ -1618,6 +1632,8 @@ public:
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has_mixin_outputs = found_something;
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has_mixin_outputs = found_something;
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++count;
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} // for (const cryptonote::output_data_t& output_data: mixin_outputs)
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} // for (const cryptonote::output_data_t& output_data: mixin_outputs)
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@ -1634,21 +1650,29 @@ public:
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context["show_inputs"] = show_key_images;
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context["show_inputs"] = show_key_images;
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context["inputs_no"] = static_cast<uint64_t>(inputs.size());
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context["inputs_no"] = static_cast<uint64_t>(inputs.size());
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context["sum_mixin_xmr"] = xmreg::xmr_amount_to_str(sum_mixin_xmr);
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context["sum_mixin_xmr"] = xmreg::xmr_amount_to_str(
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sum_mixin_xmr, "{:0.12f}", false);
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uint64_t possible_spending {0};
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uint64_t possible_spending {0};
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if (sum_mixin_xmr > (sum_xmr + txd.fee))
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// show spending only if sum of mixins is more than
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// what we get + fee, and number of perferctly matched
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// mixis is equal to number of inputs
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if (sum_mixin_xmr > (sum_xmr + txd.fee)
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&& no_of_matched_mixins == inputs.size())
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{
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{
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// (outcoming - incoming) - fee
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// (outcoming - incoming) - fee
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possible_spending = (sum_mixin_xmr - sum_xmr) - txd.fee;
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possible_spending = (sum_mixin_xmr - sum_xmr) - txd.fee;
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}
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}
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context["possible_spending"] = xmreg::xmr_amount_to_str(
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context["possible_spending"] = xmreg::xmr_amount_to_str(
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possible_spending, "{:0.12f}", false);
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possible_spending, "{:0.12f}", false);
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//cout << "no_of_matched_mixins: " << no_of_matched_mixins << endl;
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// read my_outputs.html
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// read my_outputs.html
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string my_outputs_html = xmreg::read(TMPL_MY_OUTPUTS);
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string my_outputs_html = xmreg::read(TMPL_MY_OUTPUTS);
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@ -132,7 +132,7 @@
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</div>
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</div>
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<h3>
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<h3>
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Sum XMR from matched mixin's outputs: {{sum_mixin_xmr}}
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Sum XMR from matched and marked by * mixin's outputs: {{sum_mixin_xmr}}
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<br/>
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<br/>
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<span style="font-size: 16px"> Possible spending is:
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<span style="font-size: 16px"> Possible spending is:
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{{possible_spending}} (tx fee included)
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{{possible_spending}} (tx fee included)
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