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Diffstat (limited to 'data/extensions/jsr@javascriptrestrictor/wrappingS-ECMA-DATE.js')
| -rw-r--r-- | data/extensions/jsr@javascriptrestrictor/wrappingS-ECMA-DATE.js | 122 |
1 files changed, 0 insertions, 122 deletions
diff --git a/data/extensions/jsr@javascriptrestrictor/wrappingS-ECMA-DATE.js b/data/extensions/jsr@javascriptrestrictor/wrappingS-ECMA-DATE.js deleted file mode 100644 index befaa2d..0000000 --- a/data/extensions/jsr@javascriptrestrictor/wrappingS-ECMA-DATE.js +++ /dev/null @@ -1,122 +0,0 @@ -/** \file - * \brief Wrappers for the Date object - * - * \author Copyright (C) 2019 Libor Polcak - * \author Copyright (C) 2020 Peter Hornak - * - * \license SPDX-License-Identifier: GPL-3.0-or-later - */ -// -// This program is free software: you can redistribute it and/or modify -// it under the terms of the GNU General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// This program is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. -// -// You should have received a copy of the GNU General Public License -// along with this program. If not, see <https://www.gnu.org/licenses/>. -// - - -/** \file - * \ingroup wrappers - * - * This wrapper aims on prevention of microarchitectural attacks, clock-skew attacks, and other time - * related attacks. The goal is to limit the precision of the time returned by the Date object. - * - * \see <https://www.fit.vut.cz/study/thesis/22308/?year=0&sup=Pol%C4%8D%C3%A1k>, especially Sect. - * 7.2. - * - * \see Tom Van Goethem, Wouter Joosen, Nick Nikiforakis. The Clock is Still Ticking: - * Timing Attacks in the Modern Web. CCS'15. [Link](https://lirias.kuleuven.be/retrieve/389086), - * [DOI](http://dx.doi.org/10.1145/2810103.2813632) - * - * \see Schwarz, M., Lipp, M. a Gruss, D. JavaScript Zero: Real JavaScript and Zero -Side-Channel Attacks. NDSS'18. - * - * \see Schwarz M., Maurice C., Gruss D., Mangard S. (2017) Fantastic Timers and Where to Find Them: High-Resolution Microarchitectural Attacks in JavaScript. In: Kiayias A. (eds) Financial Cryptography and Data Security. FC 2017. Lecture Notes in Computer Science, vol 10322. Springer, Cham. https://doi.org/10.1007/978-3-319-70972-7_13 - * - * The wrappers support the following behaviour: - * - * * Round timestamp: Limit the precision by removing (a part of) the decimal part of the timestamp. - * * Randomize after rounding: Create a fake decimal part to confuse attackers and to create - * timestamps that look similar to expected timestamps. - */ - - -/* - * Create private namespace - */ -(function() { - var wrappers = [ - { - parent_object: "window", - parent_object_property: "Date", - wrapped_objects: [ - { - original_name: "Date", - wrapped_name: "originalDateConstructor", - }, - ], - helping_code: rounding_function + noise_function + - ` - var precision = args[0]; - var doNoise = args[1]; - var func = rounding_function; - if (doNoise) { - func = noise_function; - } - `, - wrapping_function_args: "", - wrapping_function_body: ` - var wrapped = new originalDateConstructor(...arguments); - if (arguments[0] === undefined) { - // Don't change value if custom arguments are passed - var changedValue = func(wrapped.getTime(), precision); - wrapped.setTime(changedValue); - } - return wrapped; - `, - wrapper_prototype: "originalDateConstructor", - post_wrapping_code: [ - { - code_type: "function_define", - original_function: "originalDateConstructor.now", - parent_object: "window.Date", - parent_object_property: "now", - wrapping_function_args: "", - wrapping_function_body: "return func(originalF.call(Date), precision);", - }, - { - code_type: "function_export", - parent_object: "window.Date", - parent_object_property: "parse", - export_function_name: "originalDateConstructor.parse", - }, - { - code_type: "function_export", - parent_object: "window.Date", - parent_object_property: "UTC", - export_function_name: "originalDateConstructor.UTC", - }, - { - code_type: "assign", - parent_object: "window.Date", - parent_object_property: "prototype", - value: "originalDateConstructor.prototype", - }, - { - code_type: "assign", - parent_object: "window.Date.prototype", - parent_object_property: "constructor", - value: "window.Date", - }, - ] - }, - ] - add_wrappers(wrappers); -})() |