adding JS support started
This commit is contained in:
moneroexamples
parent
4cc4208e9e
commit
21d5ccf2f1
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@ -94,6 +94,7 @@ create_git_version()
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configure_files(${CMAKE_CURRENT_SOURCE_DIR}/src/templates ${CMAKE_CURRENT_BINARY_DIR}/templates)
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configure_files(${CMAKE_CURRENT_SOURCE_DIR}/src/templates/css ${CMAKE_CURRENT_BINARY_DIR}/templates/css)
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configure_files(${CMAKE_CURRENT_SOURCE_DIR}/src/templates/partials ${CMAKE_CURRENT_BINARY_DIR}/templates/partials)
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configure_files(${CMAKE_CURRENT_SOURCE_DIR}/src/templates/js ${CMAKE_CURRENT_BINARY_DIR}/templates/js)
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set(LIBRARIES
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myxrm
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48
main.cpp
48
main.cpp
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@ -58,6 +58,7 @@ main(int ac, const char* av[])
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auto enable_output_key_checker_opt = opts.get_option<bool>("enable-output-key-checker");
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auto enable_autorefresh_option_opt = opts.get_option<bool>("enable-autorefresh-option");
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auto enable_pusher_opt = opts.get_option<bool>("enable-pusher");
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auto enable_js_opt = opts.get_option<bool>("enable-js");
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auto enable_mixin_details_opt = opts.get_option<bool>("enable-mixin-details");
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auto enable_json_api_opt = opts.get_option<bool>("enable-json-api");
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auto enable_tx_cache_opt = opts.get_option<bool>("enable-tx-cache");
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@ -69,6 +70,7 @@ main(int ac, const char* av[])
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bool testnet {*testnet_opt};
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bool enable_pusher {*enable_pusher_opt};
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bool enable_js {*enable_js_opt};
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bool enable_key_image_checker {*enable_key_image_checker_opt};
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bool enable_autorefresh_option {*enable_autorefresh_option_opt};
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bool enable_output_key_checker {*enable_output_key_checker_opt};
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@ -236,6 +238,7 @@ main(int ac, const char* av[])
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deamon_url,
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testnet,
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enable_pusher,
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enable_js,
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enable_key_image_checker,
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enable_output_key_checker,
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enable_autorefresh_option,
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@ -497,8 +500,53 @@ main(int ac, const char* av[])
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return text;
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});
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if (enable_js)
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{
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cout << "Enable JavaScript checking of outputs and proving txs\n";
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CROW_ROUTE(app, "/js/jquery.min.js")
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([&](const crow::request& req) {
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return xmrblocks.get_js_file("jquery.min.js");
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});
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CROW_ROUTE(app, "/js/crc32.js")
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([&](const crow::request& req) {
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return xmrblocks.get_js_file("crc32.js");
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});
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CROW_ROUTE(app, "/js/crypto.js")
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([&](const crow::request& req) {
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return xmrblocks.get_js_file("crypto.js");
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});
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CROW_ROUTE(app, "/js/cryptjjo.js")
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([&](const crow::request& req) {
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return xmrblocks.get_js_file("crypto.js");
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});
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CROW_ROUTE(app, "/js/nacl-fast-cn.js.js")
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([&](const crow::request& req) {
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return xmrblocks.get_js_file("nacl-fast-cn.js");
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});
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CROW_ROUTE(app, "/js/base58.js")
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([&](const crow::request& req) {
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return xmrblocks.get_js_file("base58.js");
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});
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CROW_ROUTE(app, "/js/cn_util.js")
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([&](const crow::request& req) {
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return xmrblocks.get_js_file("cn_util.js");
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});
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}
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if (enable_json_api)
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{
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cout << "Enable JSON API\n";
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CROW_ROUTE(app, "/api/transaction/<string>")
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([&](const crow::request &req, string tx_hash) {
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@ -41,6 +41,8 @@ namespace xmreg
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"show times of getting data from cache vs no cache")
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("enable-block-cache", value<bool>()->default_value(false)->implicit_value(true),
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"enable caching of block details")
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("enable-js", value<bool>()->default_value(false)->implicit_value(true),
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"enable checking outputs and proving txs using JavaScript on client side")
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("enable-autorefresh-option", value<bool>()->default_value(false)->implicit_value(true),
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"enable users to have the index page on autorefresh")
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("enable-emission-monitor", value<bool>()->default_value(false)->implicit_value(true),
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45
src/page.h
45
src/page.h
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@ -55,6 +55,12 @@
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#define TMPL_MY_RAWOUTPUTKEYS TMPL_DIR "/rawoutputkeys.html"
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#define TMPL_MY_CHECKRAWOUTPUTKEYS TMPL_DIR "/checkrawoutputkeys.html"
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#define JS_JQUERY TMPL_DIR "/js/jquery.min.js"
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#define JS_CRC32 TMPL_DIR "/js/crc32.js"
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#define JS_BASE58 TMPL_DIR "/js/base58.js"
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#define JS_CRYPTO TMPL_DIR "/js/crypto.js"
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#define JS_CNUTILS TMPL_DIR "/js/cn_utils.js"
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#define JS_NACLFAST TMPL_DIR "/js/nacl-fast-cn.js"
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#define ONIONEXPLORER_RPC_VERSION_MAJOR 1
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#define ONIONEXPLORER_RPC_VERSION_MINOR 0
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@ -262,6 +268,8 @@ namespace xmreg
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bool testnet;
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bool enable_js;
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bool enable_pusher;
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bool enable_key_image_checker;
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@ -314,6 +322,7 @@ namespace xmreg
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string _deamon_url,
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bool _testnet,
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bool _enable_pusher,
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bool _enable_js,
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bool _enable_key_image_checker,
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bool _enable_output_key_checker,
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bool _enable_autorefresh_option,
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@ -331,6 +340,7 @@ namespace xmreg
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server_timestamp {std::time(nullptr)},
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testnet {_testnet},
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enable_pusher {_enable_pusher},
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enable_js {_enable_js},
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enable_key_image_checker {_enable_key_image_checker},
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enable_output_key_checker {_enable_output_key_checker},
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enable_autorefresh_option {_enable_autorefresh_option},
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@ -374,6 +384,15 @@ namespace xmreg
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template_file["tx_details"] = xmreg::read(string(TMPL_PARIALS_DIR) + "/tx_details.html");
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template_file["tx_table_header"] = xmreg::read(string(TMPL_PARIALS_DIR) + "/tx_table_header.html");
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template_file["tx_table_row"] = xmreg::read(string(TMPL_PARIALS_DIR) + "/tx_table_row.html");
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// JavaScript files
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template_file["jquery.min.js"] = xmreg::read(JS_JQUERY);
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template_file["crc32.js"] = xmreg::read(JS_CRC32);
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template_file["crypto.js"] = xmreg::read(JS_CRYPTO);
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template_file["cn_utils.js"] = xmreg::read(JS_CNUTILS);
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template_file["base58.js"] = xmreg::read(JS_BASE58);
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template_file["nacl-fast-cn.js"] = xmreg::read(JS_NACLFAST);
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}
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/**
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@ -1413,6 +1432,9 @@ namespace xmreg
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add_css_style(context);
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if (enable_js)
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add_js_files(context);
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// render the page
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return mstch::render(template_file["tx"], context, partials);
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}
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@ -3822,6 +3844,15 @@ namespace xmreg
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return mstch::render(full_page, context, partials);
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}
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string
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get_js_file(string const& fname)
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{
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if (template_file.count(fname))
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return template_file[fname];
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return string{};
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}
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/*
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* Lets use this json api convention for success and error
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@ -6124,6 +6155,20 @@ namespace xmreg
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}};
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}
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void
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add_js_files(mstch::map& context)
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{
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context["js_files"] = mstch::lambda{[&](const std::string& text) -> mstch::node {
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string js;
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js += "<script src=\"/js/jquery.min.js\"></script>";
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js += "<script src=\"/js/crc32.js\"></script>";
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return js;
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}};
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}
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};
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}
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@ -12,6 +12,8 @@
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{{#css_styles}}{{/css_styles}}
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</style>
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{{#js_files}}{{/js_files}}
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</head>
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<body>
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<div>
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@ -0,0 +1,190 @@
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var cnBase58 = (function () {
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var b58 = {};
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var alphabet_str = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";
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var alphabet = [];
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for (var i = 0; i < alphabet_str.length; i++) {
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alphabet.push(alphabet_str.charCodeAt(i));
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}
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var encoded_block_sizes = [0, 2, 3, 5, 6, 7, 9, 10, 11];
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var alphabet_size = alphabet.length;
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var full_block_size = 8;
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var full_encoded_block_size = 11;
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var UINT64_MAX = new JSBigInt(2).pow(64);
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function hextobin(hex) {
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if (hex.length % 2 !== 0) throw "Hex string has invalid length!";
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var res = new Uint8Array(hex.length / 2);
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for (var i = 0; i < hex.length / 2; ++i) {
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res[i] = parseInt(hex.slice(i * 2, i * 2 + 2), 16);
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}
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return res;
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}
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function bintohex(bin) {
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var out = [];
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for (var i = 0; i < bin.length; ++i) {
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out.push(("0" + bin[i].toString(16)).slice(-2));
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}
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return out.join("");
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}
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function strtobin(str) {
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var res = new Uint8Array(str.length);
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for (var i = 0; i < str.length; i++) {
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res[i] = str.charCodeAt(i);
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}
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return res;
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}
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function bintostr(bin) {
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var out = [];
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for (var i = 0; i < bin.length; i++) {
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out.push(String.fromCharCode(bin[i]));
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}
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return out.join("");
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}
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function uint8_be_to_64(data) {
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if (data.length < 1 || data.length > 8) {
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throw "Invalid input length";
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}
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var res = JSBigInt.ZERO;
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var twopow8 = new JSBigInt(2).pow(8);
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var i = 0;
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switch (9 - data.length) {
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case 1:
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res = res.add(data[i++]);
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case 2:
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res = res.multiply(twopow8).add(data[i++]);
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case 3:
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res = res.multiply(twopow8).add(data[i++]);
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case 4:
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res = res.multiply(twopow8).add(data[i++]);
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case 5:
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res = res.multiply(twopow8).add(data[i++]);
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case 6:
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res = res.multiply(twopow8).add(data[i++]);
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case 7:
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res = res.multiply(twopow8).add(data[i++]);
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case 8:
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res = res.multiply(twopow8).add(data[i++]);
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break;
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default:
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throw "Impossible condition";
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}
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return res;
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}
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function uint64_to_8be(num, size) {
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var res = new Uint8Array(size);
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if (size < 1 || size > 8) {
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throw "Invalid input length";
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}
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var twopow8 = new JSBigInt(2).pow(8);
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for (var i = size - 1; i >= 0; i--) {
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res[i] = num.remainder(twopow8).toJSValue();
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num = num.divide(twopow8);
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}
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return res;
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}
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b58.encode_block = function (data, buf, index) {
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if (data.length < 1 || data.length > full_encoded_block_size) {
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throw "Invalid block length: " + data.length;
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}
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var num = uint8_be_to_64(data);
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var i = encoded_block_sizes[data.length] - 1;
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// while num > 0
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while (num.compare(0) === 1) {
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var div = num.divRem(alphabet_size);
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// remainder = num % alphabet_size
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var remainder = div[1];
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// num = num / alphabet_size
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num = div[0];
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buf[index + i] = alphabet[remainder.toJSValue()];
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i--;
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}
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return buf;
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};
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b58.encode = function (hex) {
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var data = hextobin(hex);
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if (data.length === 0) {
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return "";
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}
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var full_block_count = Math.floor(data.length / full_block_size);
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var last_block_size = data.length % full_block_size;
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var res_size = full_block_count * full_encoded_block_size + encoded_block_sizes[last_block_size];
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var res = new Uint8Array(res_size);
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var i;
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for (i = 0; i < res_size; ++i) {
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res[i] = alphabet[0];
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}
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for (i = 0; i < full_block_count; i++) {
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res = b58.encode_block(data.subarray(i * full_block_size, i * full_block_size + full_block_size), res, i * full_encoded_block_size);
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}
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if (last_block_size > 0) {
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res = b58.encode_block(data.subarray(full_block_count * full_block_size, full_block_count * full_block_size + last_block_size), res, full_block_count * full_encoded_block_size)
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}
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return bintostr(res);
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};
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b58.decode_block = function (data, buf, index) {
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if (data.length < 1 || data.length > full_encoded_block_size) {
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throw "Invalid block length: " + data.length;
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}
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var res_size = encoded_block_sizes.indexOf(data.length);
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if (res_size <= 0) {
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throw "Invalid block size";
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}
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var res_num = new JSBigInt(0);
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var order = new JSBigInt(1);
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for (var i = data.length - 1; i >= 0; i--) {
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var digit = alphabet.indexOf(data[i]);
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if (digit < 0) {
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throw "Invalid symbol";
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}
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var product = order.multiply(digit).add(res_num);
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// if product > UINT64_MAX
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if (product.compare(UINT64_MAX) === 1) {
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throw "Overflow";
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}
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res_num = product;
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order = order.multiply(alphabet_size);
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}
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if (res_size < full_block_size && (new JSBigInt(2).pow(8 * res_size).compare(res_num) <= 0)) {
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throw "Overflow 2";
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}
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buf.set(uint64_to_8be(res_num, res_size), index);
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return buf;
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};
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b58.decode = function (enc) {
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enc = strtobin(enc);
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if (enc.length === 0) {
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return "";
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}
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var full_block_count = Math.floor(enc.length / full_encoded_block_size);
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var last_block_size = enc.length % full_encoded_block_size;
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var last_block_decoded_size = encoded_block_sizes.indexOf(last_block_size);
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if (last_block_decoded_size < 0) {
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throw "Invalid encoded length";
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}
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var data_size = full_block_count * full_block_size + last_block_decoded_size;
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var data = new Uint8Array(data_size);
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for (var i = 0; i < full_block_count; i++) {
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data = b58.decode_block(enc.subarray(i * full_encoded_block_size, i * full_encoded_block_size + full_encoded_block_size), data, i * full_block_size);
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}
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if (last_block_size > 0) {
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data = b58.decode_block(enc.subarray(full_block_count * full_encoded_block_size, full_block_count * full_encoded_block_size + last_block_size), data, full_block_count * full_block_size);
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}
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return bintohex(data);
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};
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return b58;
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})();
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File diff suppressed because it is too large
Load Diff
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@ -0,0 +1,29 @@
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var config = {
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apiUrl: "http://127.0.0.1:1984/",
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mainnetExplorerUrl: "https://xmrchain.com/",
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testnetExplorerUrl: "https://testnet.xmrchain.com/",
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testnet: false,
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coinUnitPlaces: 12,
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txMinConfirms: 10, // corresponds to CRYPTONOTE_DEFAULT_TX_SPENDABLE_AGE in Monero
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txCoinbaseMinConfirms: 60, // corresponds to CRYPTONOTE_MINED_MONEY_UNLOCK_WINDOW in Monero
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coinSymbol: 'XMR',
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openAliasPrefix: "xmr",
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coinName: 'Monero',
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coinUriPrefix: 'monero:',
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addressPrefix: 18,
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integratedAddressPrefix: 19,
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subAddressPrefix: 42,
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addressPrefixTestnet: 53,
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integratedAddressPrefixTestnet: 54,
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subAddressPrefixTestnet: 63,
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feePerKB: new JSBigInt('2000000000'),//20^10 - for testnet its not used, as fee is dynamic.
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dustThreshold: new JSBigInt('1000000000'),//10^10 used for choosing outputs/change - we decompose all the way down if the receiver wants now regardless of threshold
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txChargeRatio: 0.5,
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||||
defaultMixin: 4, // minimum mixin for hardfork v5
|
||||
txChargeAddress: '',
|
||||
idleTimeout: 30,
|
||||
idleWarningDuration: 20,
|
||||
maxBlockNumber: 500000000,
|
||||
avgBlockTime: 120,
|
||||
debugMode: false
|
||||
};
|
||||
|
|
@ -0,0 +1,65 @@
|
|||
var crc32 = (function () {
|
||||
'use strict';
|
||||
var crc32 = {};
|
||||
|
||||
crc32.Utf8Encode = function (string) {
|
||||
return unescape(encodeURIComponent(string));
|
||||
};
|
||||
|
||||
crc32.run = function (str) {
|
||||
var crc = new crc32.Type();
|
||||
crc.processString(str);
|
||||
return crc.checksum();
|
||||
};
|
||||
|
||||
crc32.table = [
|
||||
0, 1996959894, 3993919788, 2567524794, 124634137, 1886057615, 3915621685, 2657392035,
|
||||
249268274, 2044508324, 3772115230, 2547177864, 162941995, 2125561021, 3887607047, 2428444049,
|
||||
498536548, 1789927666, 4089016648, 2227061214, 450548861, 1843258603, 4107580753, 2211677639,
|
||||
325883990, 1684777152, 4251122042, 2321926636, 335633487, 1661365465, 4195302755, 2366115317,
|
||||
997073096, 1281953886, 3579855332, 2724688242, 1006888145, 1258607687, 3524101629, 2768942443,
|
||||
901097722, 1119000684, 3686517206, 2898065728, 853044451, 1172266101, 3705015759, 2882616665,
|
||||
651767980, 1373503546, 3369554304, 3218104598, 565507253, 1454621731, 3485111705, 3099436303,
|
||||
671266974, 1594198024, 3322730930, 2970347812, 795835527, 1483230225, 3244367275, 3060149565,
|
||||
1994146192, 31158534, 2563907772, 4023717930, 1907459465, 112637215, 2680153253, 3904427059,
|
||||
2013776290, 251722036, 2517215374, 3775830040, 2137656763, 141376813, 2439277719, 3865271297,
|
||||
1802195444, 476864866, 2238001368, 4066508878, 1812370925, 453092731, 2181625025, 4111451223,
|
||||
1706088902, 314042704, 2344532202, 4240017532, 1658658271, 366619977, 2362670323, 4224994405,
|
||||
1303535960, 984961486, 2747007092, 3569037538, 1256170817, 1037604311, 2765210733, 3554079995,
|
||||
1131014506, 879679996, 2909243462, 3663771856, 1141124467, 855842277, 2852801631, 3708648649,
|
||||
1342533948, 654459306, 3188396048, 3373015174, 1466479909, 544179635, 3110523913, 3462522015,
|
||||
1591671054, 702138776, 2966460450, 3352799412, 1504918807, 783551873, 3082640443, 3233442989,
|
||||
3988292384, 2596254646, 62317068, 1957810842, 3939845945, 2647816111, 81470997, 1943803523,
|
||||
3814918930, 2489596804, 225274430, 2053790376, 3826175755, 2466906013, 167816743, 2097651377,
|
||||
4027552580, 2265490386, 503444072, 1762050814, 4150417245, 2154129355, 426522225, 1852507879,
|
||||
4275313526, 2312317920, 282753626, 1742555852, 4189708143, 2394877945, 397917763, 1622183637,
|
||||
3604390888, 2714866558, 953729732, 1340076626, 3518719985, 2797360999, 1068828381, 1219638859,
|
||||
3624741850, 2936675148, 906185462, 1090812512, 3747672003, 2825379669, 829329135, 1181335161,
|
||||
3412177804, 3160834842, 628085408, 1382605366, 3423369109, 3138078467, 570562233, 1426400815,
|
||||
3317316542, 2998733608, 733239954, 1555261956, 3268935591, 3050360625, 752459403, 1541320221,
|
||||
2607071920, 3965973030, 1969922972, 40735498, 2617837225, 3943577151, 1913087877, 83908371,
|
||||
2512341634, 3803740692, 2075208622, 213261112, 2463272603, 3855990285, 2094854071, 198958881,
|
||||
2262029012, 4057260610, 1759359992, 534414190, 2176718541, 4139329115, 1873836001, 414664567,
|
||||
2282248934, 4279200368, 1711684554, 285281116, 2405801727, 4167216745, 1634467795, 376229701,
|
||||
2685067896, 3608007406, 1308918612, 956543938, 2808555105, 3495958263, 1231636301, 1047427035,
|
||||
2932959818, 3654703836, 1088359270, 936918000, 2847714899, 3736837829, 1202900863, 817233897,
|
||||
3183342108, 3401237130, 1404277552, 615818150, 3134207493, 3453421203, 1423857449, 601450431,
|
||||
3009837614, 3294710456, 1567103746, 711928724, 3020668471, 3272380065, 1510334235, 755167117
|
||||
];
|
||||
crc32.Type = function () {
|
||||
this.rem_ = 0xFFFFFFFF;
|
||||
this.checksum = function () {
|
||||
return ((this.rem_ ^ 0xFFFFFFFF) >>> 0);
|
||||
};
|
||||
this.processString = function (str) {
|
||||
str = crc32.Utf8Encode(str);
|
||||
for (var i = 0; i < str.length; i++) {
|
||||
var byte_index = ((str.charCodeAt(i) ^ this.rem_) >>> 0) & 0xFF;
|
||||
this.rem_ = ((this.rem_ >>> 8) ^ crc32.table[byte_index]) >>> 0;
|
||||
}
|
||||
};
|
||||
return this;
|
||||
};
|
||||
|
||||
return crc32;
|
||||
})();
|
||||
File diff suppressed because one or more lines are too long
File diff suppressed because one or more lines are too long
|
|
@ -0,0 +1,571 @@
|
|||
(function(nacl) {
|
||||
'use strict';
|
||||
|
||||
// Ported in 2014 by Dmitry Chestnykh and Devi Mandiri.
|
||||
// Public domain.
|
||||
//
|
||||
// Implementation derived from TweetNaCl version 20140427.
|
||||
// See for details: http://tweetnacl.cr.yp.to/
|
||||
|
||||
// modified 2017 for some CN functions by luigi1111
|
||||
|
||||
var gf = function(init) {
|
||||
var i, r = new Float64Array(16);
|
||||
if (init) for (i = 0; i < init.length; i++) r[i] = init[i];
|
||||
return r;
|
||||
};
|
||||
|
||||
// Pluggable, initialized in high-level API below.
|
||||
var randombytes = function(/* x, n */) { throw new Error('no PRNG'); };
|
||||
|
||||
var _0 = new Uint8Array(16);
|
||||
var _9 = new Uint8Array(32); _9[0] = 9;
|
||||
|
||||
var gf0 = gf(),
|
||||
gf1 = gf([1]),
|
||||
_121665 = gf([0xdb41, 1]),
|
||||
D = gf([0x78a3, 0x1359, 0x4dca, 0x75eb, 0xd8ab, 0x4141, 0x0a4d, 0x0070, 0xe898, 0x7779, 0x4079, 0x8cc7, 0xfe73, 0x2b6f, 0x6cee, 0x5203]),
|
||||
D2 = gf([0xf159, 0x26b2, 0x9b94, 0xebd6, 0xb156, 0x8283, 0x149a, 0x00e0, 0xd130, 0xeef3, 0x80f2, 0x198e, 0xfce7, 0x56df, 0xd9dc, 0x2406]),
|
||||
X = gf([0xd51a, 0x8f25, 0x2d60, 0xc956, 0xa7b2, 0x9525, 0xc760, 0x692c, 0xdc5c, 0xfdd6, 0xe231, 0xc0a4, 0x53fe, 0xcd6e, 0x36d3, 0x2169]),
|
||||
Y = gf([0x6658, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666]),
|
||||
I = gf([0xa0b0, 0x4a0e, 0x1b27, 0xc4ee, 0xe478, 0xad2f, 0x1806, 0x2f43, 0xd7a7, 0x3dfb, 0x0099, 0x2b4d, 0xdf0b, 0x4fc1, 0x2480, 0x2b83]);
|
||||
|
||||
function vn(x, xi, y, yi, n) {
|
||||
var i,d = 0;
|
||||
for (i = 0; i < n; i++) d |= x[xi+i]^y[yi+i];
|
||||
return (1 & ((d - 1) >>> 8)) - 1;
|
||||
}
|
||||
|
||||
function crypto_verify_16(x, xi, y, yi) {
|
||||
return vn(x,xi,y,yi,16);
|
||||
}
|
||||
|
||||
function crypto_verify_32(x, xi, y, yi) {
|
||||
return vn(x,xi,y,yi,32);
|
||||
}
|
||||
|
||||
function set25519(r, a) {
|
||||
var i;
|
||||
for (i = 0; i < 16; i++) r[i] = a[i]|0;
|
||||
}
|
||||
|
||||
function car25519(o) {
|
||||
var i, v, c = 1;
|
||||
for (i = 0; i < 16; i++) {
|
||||
v = o[i] + c + 65535;
|
||||
c = Math.floor(v / 65536);
|
||||
o[i] = v - c * 65536;
|
||||
}
|
||||
o[0] += c-1 + 37 * (c-1);
|
||||
}
|
||||
|
||||
function sel25519(p, q, b) {
|
||||
var t, c = ~(b-1);
|
||||
for (var i = 0; i < 16; i++) {
|
||||
t = c & (p[i] ^ q[i]);
|
||||
p[i] ^= t;
|
||||
q[i] ^= t;
|
||||
}
|
||||
}
|
||||
|
||||
function pack25519(o, n) {
|
||||
var i, j, b;
|
||||
var m = gf(), t = gf();
|
||||
for (i = 0; i < 16; i++) t[i] = n[i];
|
||||
car25519(t);
|
||||
car25519(t);
|
||||
car25519(t);
|
||||
for (j = 0; j < 2; j++) {
|
||||
m[0] = t[0] - 0xffed;
|
||||
for (i = 1; i < 15; i++) {
|
||||
m[i] = t[i] - 0xffff - ((m[i-1]>>16) & 1);
|
||||
m[i-1] &= 0xffff;
|
||||
}
|
||||
m[15] = t[15] - 0x7fff - ((m[14]>>16) & 1);
|
||||
b = (m[15]>>16) & 1;
|
||||
m[14] &= 0xffff;
|
||||
sel25519(t, m, 1-b);
|
||||
}
|
||||
for (i = 0; i < 16; i++) {
|
||||
o[2*i] = t[i] & 0xff;
|
||||
o[2*i+1] = t[i]>>8;
|
||||
}
|
||||
}
|
||||
|
||||
function neq25519(a, b) {
|
||||
var c = new Uint8Array(32), d = new Uint8Array(32);
|
||||
pack25519(c, a);
|
||||
pack25519(d, b);
|
||||
return crypto_verify_32(c, 0, d, 0);
|
||||
}
|
||||
|
||||
function par25519(a) {
|
||||
var d = new Uint8Array(32);
|
||||
pack25519(d, a);
|
||||
return d[0] & 1;
|
||||
}
|
||||
|
||||
function unpack25519(o, n) {
|
||||
var i;
|
||||
for (i = 0; i < 16; i++) o[i] = n[2*i] + (n[2*i+1] << 8);
|
||||
o[15] &= 0x7fff;
|
||||
}
|
||||
|
||||
function A(o, a, b) {
|
||||
for (var i = 0; i < 16; i++) o[i] = a[i] + b[i];
|
||||
}
|
||||
|
||||
function Z(o, a, b) {
|
||||
for (var i = 0; i < 16; i++) o[i] = a[i] - b[i];
|
||||
}
|
||||
|
||||
function M(o, a, b) {
|
||||
var v, c,
|
||||
t0 = 0, t1 = 0, t2 = 0, t3 = 0, t4 = 0, t5 = 0, t6 = 0, t7 = 0,
|
||||
t8 = 0, t9 = 0, t10 = 0, t11 = 0, t12 = 0, t13 = 0, t14 = 0, t15 = 0,
|
||||
t16 = 0, t17 = 0, t18 = 0, t19 = 0, t20 = 0, t21 = 0, t22 = 0, t23 = 0,
|
||||
t24 = 0, t25 = 0, t26 = 0, t27 = 0, t28 = 0, t29 = 0, t30 = 0,
|
||||
b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3], b4 = b[4], b5 = b[5],
|
||||
b6 = b[6], b7 = b[7], b8 = b[8], b9 = b[9], b10 = b[10],
|
||||
b11 = b[11], b12 = b[12], b13 = b[13], b14 = b[14], b15 = b[15];
|
||||
|
||||
v = a[0];
|
||||
t0 += v * b0; t1 += v * b1; t2 += v * b2; t3 += v * b3;
|
||||
t4 += v * b4; t5 += v * b5; t6 += v * b6; t7 += v * b7;
|
||||
t8 += v * b8; t9 += v * b9; t10 += v * b10; t11 += v * b11;
|
||||
t12 += v * b12; t13 += v * b13; t14 += v * b14; t15 += v * b15;
|
||||
v = a[1];
|
||||
t1 += v * b0; t2 += v * b1; t3 += v * b2; t4 += v * b3;
|
||||
t5 += v * b4; t6 += v * b5; t7 += v * b6; t8 += v * b7;
|
||||
t9 += v * b8; t10 += v * b9; t11 += v * b10; t12 += v * b11;
|
||||
t13 += v * b12; t14 += v * b13; t15 += v * b14; t16 += v * b15;
|
||||
v = a[2];
|
||||
t2 += v * b0; t3 += v * b1; t4 += v * b2; t5 += v * b3;
|
||||
t6 += v * b4; t7 += v * b5; t8 += v * b6; t9 += v * b7;
|
||||
t10 += v * b8; t11 += v * b9; t12 += v * b10; t13 += v * b11;
|
||||
t14 += v * b12; t15 += v * b13; t16 += v * b14; t17 += v * b15;
|
||||
v = a[3];
|
||||
t3 += v * b0; t4 += v * b1; t5 += v * b2; t6 += v * b3;
|
||||
t7 += v * b4; t8 += v * b5; t9 += v * b6; t10 += v * b7;
|
||||
t11 += v * b8; t12 += v * b9; t13 += v * b10; t14 += v * b11;
|
||||
t15 += v * b12; t16 += v * b13; t17 += v * b14; t18 += v * b15;
|
||||
v = a[4];
|
||||
t4 += v * b0; t5 += v * b1; t6 += v * b2; t7 += v * b3;
|
||||
t8 += v * b4; t9 += v * b5; t10 += v * b6; t11 += v * b7;
|
||||
t12 += v * b8; t13 += v * b9; t14 += v * b10; t15 += v * b11;
|
||||
t16 += v * b12; t17 += v * b13; t18 += v * b14; t19 += v * b15;
|
||||
v = a[5];
|
||||
t5 += v * b0; t6 += v * b1; t7 += v * b2; t8 += v * b3;
|
||||
t9 += v * b4; t10 += v * b5; t11 += v * b6; t12 += v * b7;
|
||||
t13 += v * b8; t14 += v * b9; t15 += v * b10; t16 += v * b11;
|
||||
t17 += v * b12; t18 += v * b13; t19 += v * b14; t20 += v * b15;
|
||||
v = a[6];
|
||||
t6 += v * b0; t7 += v * b1; t8 += v * b2; t9 += v * b3;
|
||||
t10 += v * b4; t11 += v * b5; t12 += v * b6; t13 += v * b7;
|
||||
t14 += v * b8; t15 += v * b9; t16 += v * b10; t17 += v * b11;
|
||||
t18 += v * b12; t19 += v * b13; t20 += v * b14; t21 += v * b15;
|
||||
v = a[7];
|
||||
t7 += v * b0; t8 += v * b1; t9 += v * b2; t10 += v * b3;
|
||||
t11 += v * b4; t12 += v * b5; t13 += v * b6; t14 += v * b7;
|
||||
t15 += v * b8; t16 += v * b9; t17 += v * b10; t18 += v * b11;
|
||||
t19 += v * b12; t20 += v * b13; t21 += v * b14; t22 += v * b15;
|
||||
v = a[8];
|
||||
t8 += v * b0; t9 += v * b1; t10 += v * b2; t11 += v * b3;
|
||||
t12 += v * b4; t13 += v * b5; t14 += v * b6; t15 += v * b7;
|
||||
t16 += v * b8; t17 += v * b9; t18 += v * b10; t19 += v * b11;
|
||||
t20 += v * b12; t21 += v * b13; t22 += v * b14; t23 += v * b15;
|
||||
v = a[9];
|
||||
t9 += v * b0; t10 += v * b1; t11 += v * b2; t12 += v * b3;
|
||||
t13 += v * b4; t14 += v * b5; t15 += v * b6; t16 += v * b7;
|
||||
t17 += v * b8; t18 += v * b9; t19 += v * b10; t20 += v * b11;
|
||||
t21 += v * b12; t22 += v * b13; t23 += v * b14; t24 += v * b15;
|
||||
v = a[10];
|
||||
t10 += v * b0; t11 += v * b1; t12 += v * b2; t13 += v * b3;
|
||||
t14 += v * b4; t15 += v * b5; t16 += v * b6; t17 += v * b7;
|
||||
t18 += v * b8; t19 += v * b9; t20 += v * b10; t21 += v * b11;
|
||||
t22 += v * b12; t23 += v * b13; t24 += v * b14; t25 += v * b15;
|
||||
v = a[11];
|
||||
t11 += v * b0; t12 += v * b1; t13 += v * b2; t14 += v * b3;
|
||||
t15 += v * b4; t16 += v * b5; t17 += v * b6; t18 += v * b7;
|
||||
t19 += v * b8; t20 += v * b9; t21 += v * b10; t22 += v * b11;
|
||||
t23 += v * b12; t24 += v * b13; t25 += v * b14; t26 += v * b15;
|
||||
v = a[12];
|
||||
t12 += v * b0; t13 += v * b1; t14 += v * b2; t15 += v * b3;
|
||||
t16 += v * b4; t17 += v * b5; t18 += v * b6; t19 += v * b7;
|
||||
t20 += v * b8; t21 += v * b9; t22 += v * b10; t23 += v * b11;
|
||||
t24 += v * b12; t25 += v * b13; t26 += v * b14; t27 += v * b15;
|
||||
v = a[13];
|
||||
t13 += v * b0; t14 += v * b1; t15 += v * b2; t16 += v * b3;
|
||||
t17 += v * b4; t18 += v * b5; t19 += v * b6; t20 += v * b7;
|
||||
t21 += v * b8; t22 += v * b9; t23 += v * b10; t24 += v * b11;
|
||||
t25 += v * b12; t26 += v * b13; t27 += v * b14; t28 += v * b15;
|
||||
v = a[14];
|
||||
t14 += v * b0; t15 += v * b1; t16 += v * b2; t17 += v * b3;
|
||||
t18 += v * b4; t19 += v * b5; t20 += v * b6; t21 += v * b7;
|
||||
t22 += v * b8; t23 += v * b9; t24 += v * b10; t25 += v * b11;
|
||||
t26 += v * b12; t27 += v * b13; t28 += v * b14; t29 += v * b15;
|
||||
v = a[15];
|
||||
t15 += v * b0; t16 += v * b1; t17 += v * b2; t18 += v * b3;
|
||||
t19 += v * b4; t20 += v * b5; t21 += v * b6; t22 += v * b7;
|
||||
t23 += v * b8; t24 += v * b9; t25 += v * b10; t26 += v * b11;
|
||||
t27 += v * b12; t28 += v * b13; t29 += v * b14; t30 += v * b15;
|
||||
|
||||
t0 += 38 * t16; t1 += 38 * t17; t2 += 38 * t18; t3 += 38 * t19;
|
||||
t4 += 38 * t20; t5 += 38 * t21; t6 += 38 * t22; t7 += 38 * t23;
|
||||
t8 += 38 * t24; t9 += 38 * t25; t10 += 38 * t26; t11 += 38 * t27;
|
||||
t12 += 38 * t28; t13 += 38 * t29; t14 += 38 * t30; // t15 left as is
|
||||
|
||||
// first car
|
||||
c = 1;
|
||||
v = t0 + c + 65535; c = Math.floor(v / 65536); t0 = v - c * 65536;
|
||||
v = t1 + c + 65535; c = Math.floor(v / 65536); t1 = v - c * 65536;
|
||||
v = t2 + c + 65535; c = Math.floor(v / 65536); t2 = v - c * 65536;
|
||||
v = t3 + c + 65535; c = Math.floor(v / 65536); t3 = v - c * 65536;
|
||||
v = t4 + c + 65535; c = Math.floor(v / 65536); t4 = v - c * 65536;
|
||||
v = t5 + c + 65535; c = Math.floor(v / 65536); t5 = v - c * 65536;
|
||||
v = t6 + c + 65535; c = Math.floor(v / 65536); t6 = v - c * 65536;
|
||||
v = t7 + c + 65535; c = Math.floor(v / 65536); t7 = v - c * 65536;
|
||||
v = t8 + c + 65535; c = Math.floor(v / 65536); t8 = v - c * 65536;
|
||||
v = t9 + c + 65535; c = Math.floor(v / 65536); t9 = v - c * 65536;
|
||||
v = t10 + c + 65535; c = Math.floor(v / 65536); t10 = v - c * 65536;
|
||||
v = t11 + c + 65535; c = Math.floor(v / 65536); t11 = v - c * 65536;
|
||||
v = t12 + c + 65535; c = Math.floor(v / 65536); t12 = v - c * 65536;
|
||||
v = t13 + c + 65535; c = Math.floor(v / 65536); t13 = v - c * 65536;
|
||||
v = t14 + c + 65535; c = Math.floor(v / 65536); t14 = v - c * 65536;
|
||||
v = t15 + c + 65535; c = Math.floor(v / 65536); t15 = v - c * 65536;
|
||||
t0 += c-1 + 37 * (c-1);
|
||||
|
||||
// second car
|
||||
c = 1;
|
||||
v = t0 + c + 65535; c = Math.floor(v / 65536); t0 = v - c * 65536;
|
||||
v = t1 + c + 65535; c = Math.floor(v / 65536); t1 = v - c * 65536;
|
||||
v = t2 + c + 65535; c = Math.floor(v / 65536); t2 = v - c * 65536;
|
||||
v = t3 + c + 65535; c = Math.floor(v / 65536); t3 = v - c * 65536;
|
||||
v = t4 + c + 65535; c = Math.floor(v / 65536); t4 = v - c * 65536;
|
||||
v = t5 + c + 65535; c = Math.floor(v / 65536); t5 = v - c * 65536;
|
||||
v = t6 + c + 65535; c = Math.floor(v / 65536); t6 = v - c * 65536;
|
||||
v = t7 + c + 65535; c = Math.floor(v / 65536); t7 = v - c * 65536;
|
||||
v = t8 + c + 65535; c = Math.floor(v / 65536); t8 = v - c * 65536;
|
||||
v = t9 + c + 65535; c = Math.floor(v / 65536); t9 = v - c * 65536;
|
||||
v = t10 + c + 65535; c = Math.floor(v / 65536); t10 = v - c * 65536;
|
||||
v = t11 + c + 65535; c = Math.floor(v / 65536); t11 = v - c * 65536;
|
||||
v = t12 + c + 65535; c = Math.floor(v / 65536); t12 = v - c * 65536;
|
||||
v = t13 + c + 65535; c = Math.floor(v / 65536); t13 = v - c * 65536;
|
||||
v = t14 + c + 65535; c = Math.floor(v / 65536); t14 = v - c * 65536;
|
||||
v = t15 + c + 65535; c = Math.floor(v / 65536); t15 = v - c * 65536;
|
||||
t0 += c-1 + 37 * (c-1);
|
||||
|
||||
o[ 0] = t0;
|
||||
o[ 1] = t1;
|
||||
o[ 2] = t2;
|
||||
o[ 3] = t3;
|
||||
o[ 4] = t4;
|
||||
o[ 5] = t5;
|
||||
o[ 6] = t6;
|
||||
o[ 7] = t7;
|
||||
o[ 8] = t8;
|
||||
o[ 9] = t9;
|
||||
o[10] = t10;
|
||||
o[11] = t11;
|
||||
o[12] = t12;
|
||||
o[13] = t13;
|
||||
o[14] = t14;
|
||||
o[15] = t15;
|
||||
}
|
||||
|
||||
function S(o, a) {
|
||||
M(o, a, a);
|
||||
}
|
||||
|
||||
function inv25519(o, i) {
|
||||
var c = gf();
|
||||
var a;
|
||||
for (a = 0; a < 16; a++) c[a] = i[a];
|
||||
for (a = 253; a >= 0; a--) {
|
||||
S(c, c);
|
||||
if(a !== 2 && a !== 4) M(c, c, i);
|
||||
}
|
||||
for (a = 0; a < 16; a++) o[a] = c[a];
|
||||
}
|
||||
|
||||
function pow2523(o, i) {
|
||||
var c = gf();
|
||||
var a;
|
||||
for (a = 0; a < 16; a++) c[a] = i[a];
|
||||
for (a = 250; a >= 0; a--) {
|
||||
S(c, c);
|
||||
if(a !== 1) M(c, c, i);
|
||||
}
|
||||
for (a = 0; a < 16; a++) o[a] = c[a];
|
||||
}
|
||||
|
||||
function add(p, q) {
|
||||
var a = gf(), b = gf(), c = gf(),
|
||||
d = gf(), e = gf(), f = gf(),
|
||||
g = gf(), h = gf(), t = gf();
|
||||
|
||||
Z(a, p[1], p[0]);
|
||||
Z(t, q[1], q[0]);
|
||||
M(a, a, t);
|
||||
A(b, p[0], p[1]);
|
||||
A(t, q[0], q[1]);
|
||||
M(b, b, t);
|
||||
M(c, p[3], q[3]);
|
||||
M(c, c, D2);
|
||||
M(d, p[2], q[2]);
|
||||
A(d, d, d);
|
||||
Z(e, b, a);
|
||||
Z(f, d, c);
|
||||
A(g, d, c);
|
||||
A(h, b, a);
|
||||
|
||||
M(p[0], e, f);
|
||||
M(p[1], h, g);
|
||||
M(p[2], g, f);
|
||||
M(p[3], e, h);
|
||||
}
|
||||
|
||||
function cswap(p, q, b) {
|
||||
var i;
|
||||
for (i = 0; i < 4; i++) {
|
||||
sel25519(p[i], q[i], b);
|
||||
}
|
||||
}
|
||||
|
||||
function pack(r, p) {
|
||||
var tx = gf(), ty = gf(), zi = gf();
|
||||
inv25519(zi, p[2]);
|
||||
M(tx, p[0], zi);
|
||||
M(ty, p[1], zi);
|
||||
pack25519(r, ty);
|
||||
r[31] ^= par25519(tx) << 7;
|
||||
}
|
||||
|
||||
function scalarmult(p, q, s) {
|
||||
var b, i;
|
||||
set25519(p[0], gf0);
|
||||
set25519(p[1], gf1);
|
||||
set25519(p[2], gf1);
|
||||
set25519(p[3], gf0);
|
||||
for (i = 255; i >= 0; --i) {
|
||||
b = (s[(i/8)|0] >> (i&7)) & 1;
|
||||
cswap(p, q, b);
|
||||
add(q, p);
|
||||
add(p, p);
|
||||
cswap(p, q, b);
|
||||
}
|
||||
}
|
||||
|
||||
function scalarbase(p, s) {
|
||||
var q = [gf(), gf(), gf(), gf()];
|
||||
set25519(q[0], X);
|
||||
set25519(q[1], Y);
|
||||
set25519(q[2], gf1);
|
||||
M(q[3], X, Y);
|
||||
scalarmult(p, q, s);
|
||||
}
|
||||
|
||||
//new functions for CN - scalar operations are handled externally
|
||||
// this only handles curve operations, except for Hp()
|
||||
|
||||
//why do we negate points when unpacking them???
|
||||
function ge_neg(pub) {
|
||||
pub[31] ^= 0x80;
|
||||
}
|
||||
|
||||
//res = s*G
|
||||
function ge_scalarmult_base(s) {
|
||||
var p = [gf(), gf(), gf(), gf()];
|
||||
scalarbase(p, s);
|
||||
var pk = new Uint8Array(32);
|
||||
pack(pk, p);
|
||||
return pk;
|
||||
}
|
||||
|
||||
//res = s*P
|
||||
function ge_scalarmult(P, s) {
|
||||
var p = [gf(), gf(), gf(), gf()],
|
||||
upk = [gf(), gf(), gf(), gf()],
|
||||
res = new Uint8Array(32);
|
||||
ge_neg(P);
|
||||
if (unpackneg(upk, P) !== 0) throw "non-0 error on point decode";
|
||||
scalarmult(p, upk, s);
|
||||
pack(res, p);
|
||||
return res;
|
||||
}
|
||||
|
||||
//res = c*P + r*G
|
||||
function ge_double_scalarmult_base_vartime(c, P, r) {
|
||||
var uP = [gf(), gf(), gf(), gf()],
|
||||
cP = [gf(), gf(), gf(), gf()],
|
||||
rG = [gf(), gf(), gf(), gf()],
|
||||
res = new Uint8Array(32);
|
||||
ge_neg(P);
|
||||
if (unpackneg(uP, P) !== 0) throw "non-0 error on point decode";
|
||||
scalarmult(cP, uP, c);
|
||||
scalarbase(rG, r);
|
||||
add(rG, cP);
|
||||
pack(res, rG);
|
||||
return res;
|
||||
}
|
||||
|
||||
//name changed to reflect not using precomp; res = r*Pb + c*I
|
||||
function ge_double_scalarmult_postcomp_vartime(r, Pb, c, I) {
|
||||
var uPb = [gf(), gf(), gf(), gf()],
|
||||
uI = [gf(), gf(), gf(), gf()],
|
||||
cI = [gf(), gf(), gf(), gf()],
|
||||
rPb = [gf(), gf(), gf(), gf()],
|
||||
res = new Uint8Array(32);
|
||||
ge_neg(Pb);
|
||||
if (unpackneg(uPb, Pb) !== 0) throw "non-0 error on point decode";
|
||||
scalarmult(rPb, uPb, r);
|
||||
ge_neg(I);
|
||||
if (unpackneg(uI, I) !== 0) throw "non-0 error on point decode";
|
||||
scalarmult(cI, uI, c);
|
||||
add(rPb, cI);
|
||||
pack(res, rPb);
|
||||
return res;
|
||||
}
|
||||
|
||||
//res = P + Q
|
||||
function ge_add(P, Q) {
|
||||
var uP = [gf(), gf(), gf(), gf()],
|
||||
uQ = [gf(), gf(), gf(), gf()],
|
||||
res = new Uint8Array(32);
|
||||
ge_neg(P);
|
||||
ge_neg(Q);
|
||||
if (unpackneg(uP, P) !== 0) throw "non-0 error on point decode";
|
||||
if (unpackneg(uQ, Q) !== 0) throw "non-0 error on point decode";
|
||||
add(uP, uQ);
|
||||
pack(res, uP);
|
||||
return res;
|
||||
}
|
||||
|
||||
var L = new Float64Array([0xed, 0xd3, 0xf5, 0x5c, 0x1a, 0x63, 0x12, 0x58, 0xd6, 0x9c, 0xf7, 0xa2, 0xde, 0xf9, 0xde, 0x14, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x10]);
|
||||
|
||||
function modL(r, x) {
|
||||
var carry, i, j, k;
|
||||
for (i = 63; i >= 32; --i) {
|
||||
carry = 0;
|
||||
for (j = i - 32, k = i - 12; j < k; ++j) {
|
||||
x[j] += carry - 16 * x[i] * L[j - (i - 32)];
|
||||
carry = (x[j] + 128) >> 8;
|
||||
x[j] -= carry * 256;
|
||||
}
|
||||
x[j] += carry;
|
||||
x[i] = 0;
|
||||
}
|
||||
carry = 0;
|
||||
for (j = 0; j < 32; j++) {
|
||||
x[j] += carry - (x[31] >> 4) * L[j];
|
||||
carry = x[j] >> 8;
|
||||
x[j] &= 255;
|
||||
}
|
||||
for (j = 0; j < 32; j++) x[j] -= carry * L[j];
|
||||
for (i = 0; i < 32; i++) {
|
||||
x[i+1] += x[i] >> 8;
|
||||
r[i] = x[i] & 255;
|
||||
}
|
||||
}
|
||||
|
||||
function reduce(r) {
|
||||
var x = new Float64Array(64), i;
|
||||
for (i = 0; i < 64; i++) x[i] = r[i];
|
||||
for (i = 0; i < 64; i++) r[i] = 0;
|
||||
modL(r, x);
|
||||
}
|
||||
|
||||
function unpackneg(r, p) {
|
||||
var t = gf(), chk = gf(), num = gf(),
|
||||
den = gf(), den2 = gf(), den4 = gf(),
|
||||
den6 = gf();
|
||||
|
||||
set25519(r[2], gf1);
|
||||
unpack25519(r[1], p);
|
||||
S(num, r[1]);
|
||||
M(den, num, D);
|
||||
Z(num, num, r[2]);
|
||||
A(den, r[2], den);
|
||||
|
||||
S(den2, den);
|
||||
S(den4, den2);
|
||||
M(den6, den4, den2);
|
||||
M(t, den6, num);
|
||||
M(t, t, den);
|
||||
|
||||
pow2523(t, t);
|
||||
M(t, t, num);
|
||||
M(t, t, den);
|
||||
M(t, t, den);
|
||||
M(r[0], t, den);
|
||||
|
||||
S(chk, r[0]);
|
||||
M(chk, chk, den);
|
||||
if (neq25519(chk, num)) M(r[0], r[0], I);
|
||||
|
||||
S(chk, r[0]);
|
||||
M(chk, chk, den);
|
||||
if (neq25519(chk, num)) return -1;
|
||||
|
||||
if (par25519(r[0]) === (p[31]>>7)) Z(r[0], gf0, r[0]);
|
||||
|
||||
M(r[3], r[0], r[1]);
|
||||
return 0;
|
||||
}
|
||||
|
||||
nacl.ll = {
|
||||
|
||||
ge_scalarmult_base: ge_scalarmult_base,
|
||||
ge_scalarmult: ge_scalarmult,
|
||||
ge_double_scalarmult_base_vartime: ge_double_scalarmult_base_vartime,
|
||||
ge_add: ge_add,
|
||||
ge_double_scalarmult_postcomp_vartime: ge_double_scalarmult_postcomp_vartime
|
||||
|
||||
};
|
||||
|
||||
|
||||
/* High-level API */
|
||||
|
||||
function cleanup(arr) {
|
||||
for (var i = 0; i < arr.length; i++) arr[i] = 0;
|
||||
}
|
||||
|
||||
nacl.randomBytes = function(n) {
|
||||
var b = new Uint8Array(n);
|
||||
randombytes(b, n);
|
||||
return b;
|
||||
};
|
||||
|
||||
nacl.setPRNG = function(fn) {
|
||||
randombytes = fn;
|
||||
};
|
||||
|
||||
(function() {
|
||||
// Initialize PRNG if environment provides CSPRNG.
|
||||
// If not, methods calling randombytes will throw.
|
||||
var crypto = typeof self !== 'undefined' ? (self.crypto || self.msCrypto) : null;
|
||||
if (crypto && crypto.getRandomValues) {
|
||||
// Browsers.
|
||||
var QUOTA = 65536;
|
||||
nacl.setPRNG(function(x, n) {
|
||||
var i, v = new Uint8Array(n);
|
||||
for (i = 0; i < n; i += QUOTA) {
|
||||
crypto.getRandomValues(v.subarray(i, i + Math.min(n - i, QUOTA)));
|
||||
}
|
||||
for (i = 0; i < n; i++) x[i] = v[i];
|
||||
cleanup(v);
|
||||
});
|
||||
} else if (typeof require !== 'undefined') {
|
||||
// Node.js.
|
||||
crypto = require('crypto');
|
||||
if (crypto && crypto.randomBytes) {
|
||||
nacl.setPRNG(function(x, n) {
|
||||
var i, v = crypto.randomBytes(n);
|
||||
for (i = 0; i < n; i++) x[i] = v[i];
|
||||
cleanup(v);
|
||||
});
|
||||
}
|
||||
}
|
||||
})();
|
||||
|
||||
})(typeof module !== 'undefined' && module.exports ? module.exports : (self.nacl = self.nacl || {}));
|
||||
Loading…
Reference in New Issue