js decoding of ring ct amounts added
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moneroexamples
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1459b30dd4
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@ -165,99 +165,12 @@
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</div>
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<script>
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// here we handle button presses from the above forms
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// to decode and prove txs.
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$(document).ready(function() {
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// we need output pubplic keys, their indexes and amounts.
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// all this is already avaliable on the html, but we can use
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// musch framework to produce js array for this
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var tx_json = {{#tx_json_raw}}{{/tx_json_raw}};
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console.log(tx_json);
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var is_rct = ($("#is_ringct").val() === "yes");
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var rct_type = parseInt($("#ringct_type").val());
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var tx_public_key = $("#tx_pub_key").text();
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// get the tx publick key outputs from the hidden field
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var tx_outputs_tmp = $("#tx_outputs").val().split(';');
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var tx_outputs = [];
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for (var i = 0; i < tx_outputs_tmp.length - 1; i++) {
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tx_outputs.push(tx_outputs_tmp[i].split(','));
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}
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console.log(is_rct, rct_type, tx_outputs);
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$("#decode_btn").click(function() {
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var address = $("input[name=xmr_address]").val();
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var viewkey = $("input[name=viewkey]").val();
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var address_decoded = decode_address(address);
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var key_derivation = generate_key_derivation(tx_public_key, viewkey);
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console.log(tx_public_key, address, viewkey, key_derivation);
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console.log(address_decoded);
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// go over each tx output, and check if it is ours or not
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var decoding_results_str = '<h4>Output decoding results</h4>';
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decoding_results_str += '<table class="center">';
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tx_outputs.forEach(function(output) {
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var output_idx = parseInt(output[0]);
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var output_pub_key = output[1];
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var amount = output[2];
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var pubkey_generated = derive_public_key(key_derivation, output_idx, address_decoded.spend);
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var mine_output = (output_pub_key == pubkey_generated);
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var mine_output_str = "false";
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if (mine_output) {
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mine_output_str = '<span style="color: #008009;font-weight: bold">true</span>';
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}
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decoding_results_str += "<tr>"
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+"<td>" + output_idx + "</td>"
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+"<td>" + output_pub_key + "</td>"
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+"<td>" + mine_output_str + "</td>"
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+"<td>" + amount + "</td>"
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+"</tr>";
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console.log(output[1], pubkey_generated);
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});
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decoding_results_str += "</table>"
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$("#decode-prove-results").html(decoding_results_str);
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});
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$("#prove_btn").click(function() {
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$("#decode-prove-results").html("Prove button pressed");
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var address = $("input[name=xmraddress]").val();
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var txprvkey = $("input[name=txprvkey]").val();
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var address_decoded = decode_address(address);
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console.log(address, txprvkey);
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});
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var H = "8b655970153799af2aeadc9ff1add0ea6c7251d54154cfa92c173a0dd39c1f94";
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//decode amount and mask and check against commitment
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// from https://xmr.llcoins.net/js/site.js
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@ -301,6 +214,107 @@
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return data;
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}
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// we need output pubplic keys, their indexes and amounts.
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// all this is already avaliable on the html, but we can use
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// musch framework to produce js array for this
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var tx_json = {{#tx_json_raw}}{{/tx_json_raw}};
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//console.log(tx_json);
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var is_rct = ($("#is_ringct").val() === "yes");
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var rct_type = parseInt($("#ringct_type").val());
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var tx_public_key = $("#tx_pub_key").text();
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// get the tx publick key outputs from the hidden field
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var tx_outputs_tmp = $("#tx_outputs").val().split(';');
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var tx_outputs = [];
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for (var i = 0; i < tx_outputs_tmp.length - 1; i++) {
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tx_outputs.push(tx_outputs_tmp[i].split(','));
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}
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console.log(is_rct, rct_type, tx_outputs);
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$("#decode_btn").click(function() {
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var address = $("input[name=xmr_address]").val();
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var viewkey = $("input[name=viewkey]").val();
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var address_decoded = decode_address(address);
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var key_derivation = generate_key_derivation(tx_public_key, viewkey);
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console.log(tx_public_key, address, viewkey, key_derivation);
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console.log(address_decoded);
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// go over each tx output, and check if it is ours or not
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var decoding_results_str = '<h4>Output decoding results</h4>';
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decoding_results_str += '<table class="center">';
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tx_outputs.forEach(function(output) {
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var output_idx = parseInt(output[0]);
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var output_pub_key = output[1];
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var amount = parseInt(output[2]);
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var pubkey_generated = derive_public_key(key_derivation, output_idx, address_decoded.spend);
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var mine_output = (output_pub_key == pubkey_generated);
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var mine_output_str = "false";
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if (mine_output) {
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mine_output_str = '<span style="color: #008009;font-weight: bold">true</span>';
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if (is_rct) {
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try {
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var ecdh = decodeRct(tx_json.rct_signatures, output_idx, key_derivation);
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amount = ecdh.amount / 1e12;
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} catch (err) {
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decoding_results_str += "<span class='validNo'>RingCT amount for output " + i + " with pubkey: " + output_pub_key + " decoded incorrectly! It will not be spendable." + "</span>" + "<br>"; //rct commitment != computed
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//throw "invalid rct amount";
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}
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}
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}
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decoding_results_str += "<tr>"
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+"<td>" + output_idx + "</td>"
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+"<td>" + output_pub_key + "</td>"
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+"<td>" + mine_output_str + "</td>"
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+"<td>" + amount + "</td>"
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+"</tr>";
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console.log(output[1], pubkey_generated);
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});
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decoding_results_str += "</table>"
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$("#decode-prove-results").html(decoding_results_str);
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});
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$("#prove_btn").click(function() {
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$("#decode-prove-results").html("Prove button pressed");
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var address = $("input[name=xmraddress]").val();
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var txprvkey = $("input[name=txprvkey]").val();
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var address_decoded = decode_address(address);
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console.log(address, txprvkey);
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});
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});
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</script>
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