From 2f0e1c14e7ef149b51f08bd82459a63dd9c8d81e Mon Sep 17 00:00:00 2001 From: moneroexamples Date: Thu, 18 Jan 2018 12:50:36 +0800 Subject: [PATCH] js refactored --- src/templates/partials/tx_details.html | 236 ++++++++++++------------- 1 file changed, 113 insertions(+), 123 deletions(-) diff --git a/src/templates/partials/tx_details.html b/src/templates/partials/tx_details.html index 70ba3bf..ece4530 100644 --- a/src/templates/partials/tx_details.html +++ b/src/templates/partials/tx_details.html @@ -44,15 +44,6 @@ Tx version: {{tx_version}} No of confirmations: {{confirmations}} RingCT/type: {{#is_ringct}}yes/{{rct_type}}{{/is_ringct}}{{^is_ringct}}no{{/is_ringct}} - - - {{#enable_js}} - - - - {{/enable_js}} - - @@ -79,13 +70,6 @@ {{amount_idx}} of {{num_outputs}} {{/outputs}} - - {{#enable_js}} - - - {{/enable_js}} - - @@ -170,49 +154,6 @@ // to decode and prove txs. $(document).ready(function() { - var H = "8b655970153799af2aeadc9ff1add0ea6c7251d54154cfa92c173a0dd39c1f94"; - - //decode amount and mask and check against commitment - // from https://xmr.llcoins.net/js/site.js - function decodeRct(rv, i, der){ - var key = derivation_to_scalar(der, i); - var ecdh = decode_rct_ecdh(rv.ecdhInfo[i], key); - console.log(ecdh); - var Ctmp = commit(ecdh.amount, ecdh.mask); - console.log(Ctmp); - if (Ctmp !== rv.outPk[i]){ - throw "mismatched commitments!"; - } - ecdh.amount = s2d(ecdh.amount); - return ecdh; - } - - //creates a Pedersen commitment from an amount (in scalar form) and a mask - //C = bG + aH where b = mask, a = amount - // from https://xmr.llcoins.net/js/site.js - function commit(amount, mask){ - if (!valid_hex(mask) || mask.length !== 64 || !valid_hex(amount) || amount.length !== 64){ - throw "invalid amount or mask!"; - } - var C = ge_double_scalarmult_base_vartime(amount, H, mask); - return C; - } - - // // from https://xmr.llcoins.net/js/site.js - function s2d(scalar){ - return JSBigInt.parse(swapEndian(scalar), 16).toString(); - } - - //switch byte order for hex string - // from https://xmr.llcoins.net/js/site.js - function swapEndian(hex){ - if (hex.length % 2 !== 0){return "length must be a multiple of 2!";} - var data = ""; - for (var i=1; i <= hex.length / 2; i++){ - data += hex.substr(0 - 2 * i, 2); - } - return data; - } // we need output pubplic keys, their indexes and amounts. // all this is already avaliable on the html, but we can use @@ -220,11 +161,6 @@ var tx_json = {{#tx_json_raw}}{{/tx_json_raw}}; - //console.log(tx_json); - - var is_rct = ($("#is_ringct").val() === "yes"); - var rct_type = parseInt($("#ringct_type").val()); - var tx_public_key = $("#tx_pub_key").text(); // get the tx publick key outputs from the hidden field @@ -236,87 +172,141 @@ tx_outputs.push(tx_outputs_tmp[i].split(',')); } - console.log(is_rct, rct_type, tx_outputs); + //console.log(is_rct, rct_type, tx_outputs); + + $("#decode_btn").click(function() { - var address = $("input[name=xmr_address]").val(); var viewkey = $("input[name=viewkey]").val(); var address_decoded = decode_address(address); - var key_derivation = generate_key_derivation(tx_public_key, viewkey); - - console.log(tx_public_key, address, viewkey, key_derivation); - - console.log(address_decoded); - - // go over each tx output, and check if it is ours or not - var decoding_results_str = '

Output decoding results

'; - - decoding_results_str += ''; - - tx_outputs.forEach(function(output) { - - var output_idx = parseInt(output[0]); - var output_pub_key = output[1]; - var amount = parseInt(output[2]); - - var pubkey_generated = derive_public_key(key_derivation, output_idx, address_decoded.spend); - - var mine_output = (output_pub_key == pubkey_generated); - - var mine_output_str = "false"; - - if (mine_output) { - - mine_output_str = 'true'; - - if (is_rct) { - try { - var ecdh = decodeRct(tx_json.rct_signatures, output_idx, key_derivation); - amount = ecdh.amount / 1e12; - } catch (err) { - decoding_results_str += "RingCT amount for output " + i + " with pubkey: " + output_pub_key + " decoded incorrectly! It will not be spendable." + "" + "
"; //rct commitment != computed - //throw "invalid rct amount"; - } - } - } - - decoding_results_str += "" - +"" - +"" - +"" - +"" - +""; - - console.log(output[1], pubkey_generated); - }); - - decoding_results_str += "
" + output_idx + "" + output_pub_key + "" + mine_output_str + "" + amount + "
" - - $("#decode-prove-results").html(decoding_results_str); - + decodeOutputs(tx_json, tx_public_key, viewkey, address_decoded.spend); }); $("#prove_btn").click(function() { $("#decode-prove-results").html("Prove button pressed"); - var address = $("input[name=xmraddress]").val(); - var txprvkey = $("input[name=txprvkey]").val(); + var address = $("input[name=xmraddress]").val(); + var tx_prv_key = $("input[name=txprvkey]").val(); var address_decoded = decode_address(address); - console.log(address, txprvkey); + decodeOutputs(tx_json, address_decoded.view, tx_prv_key, address_decoded.spend); }); - - }); + function decodeOutputs(tx_json, pub_key, sec_key, address_pub_key) { + //console.log(tx_json); + + var is_rct = (tx_json.version === 2); + var rct_type = (is_rct ? tx_json.rct_signatures.type : -1); + + var key_derivation = generate_key_derivation(pub_key, sec_key); + + // console.log(pub_key, address_pub_key, sec_key, key_derivation); + + + // go over each tx output, and check if it is ours or not + var decoding_results_str = '

Output decoding results

'; + + decoding_results_str += ''; + + var output_idx = 0; + + tx_json.vout.forEach(function(output) { + + var output_pub_key = output.target.key; + var amount = output.amount; + + var pubkey_generated = derive_public_key(key_derivation, output_idx, address_pub_key); + + var mine_output = (output_pub_key == pubkey_generated); + + var mine_output_str = "false"; + + if (mine_output) { + + mine_output_str = 'true'; + + if (is_rct) { + try { + var ecdh = decodeRct(tx_json.rct_signatures, output_idx, key_derivation); + amount = ecdh.amount / 1e12; + } catch (err) { + decoding_results_str += "RingCT amount for output " + i + " with pubkey: " + output_pub_key + "" + "
"; //rct commitment != computed + throw "invalid rct amount"; + } + } + } + + decoding_results_str += "" + +"" + +"" + +"" + +"" + +""; + + //console.log(output[1], pubkey_generated); + + output_idx++; + }); + + decoding_results_str += "
" + output_idx + "" + output_pub_key + "" + mine_output_str + "" + amount + "
" + + $("#decode-prove-results").html(decoding_results_str); + } + + //decode amount and mask and check against commitment + // from https://xmr.llcoins.net/js/site.js + + var H = "8b655970153799af2aeadc9ff1add0ea6c7251d54154cfa92c173a0dd39c1f94"; + + function decodeRct(rv, i, der){ + var key = derivation_to_scalar(der, i); + var ecdh = decode_rct_ecdh(rv.ecdhInfo[i], key); + console.log(ecdh); + var Ctmp = commit(ecdh.amount, ecdh.mask); + console.log(Ctmp); + if (Ctmp !== rv.outPk[i]){ + throw "mismatched commitments!"; + } + ecdh.amount = s2d(ecdh.amount); + return ecdh; + } + + //creates a Pedersen commitment from an amount (in scalar form) and a mask + //C = bG + aH where b = mask, a = amount + // from https://xmr.llcoins.net/js/site.js + function commit(amount, mask){ + if (!valid_hex(mask) || mask.length !== 64 || !valid_hex(amount) || amount.length !== 64){ + throw "invalid amount or mask!"; + } + var C = ge_double_scalarmult_base_vartime(amount, H, mask); + return C; + } + + // // from https://xmr.llcoins.net/js/site.js + function s2d(scalar){ + return JSBigInt.parse(swapEndian(scalar), 16).toString(); + } + + //switch byte order for hex string + // from https://xmr.llcoins.net/js/site.js + function swapEndian(hex){ + if (hex.length % 2 !== 0){return "length must be a multiple of 2!";} + var data = ""; + for (var i=1; i <= hex.length / 2; i++){ + data += hex.substr(0 - 2 * i, 2); + } + return data; + } + {{/enable_js}}