Secure EcmaScript (SES) is a frozen environment for running EcmaScript
(Javascript) 'strict' mode programs with no ambient authority in their global
scope, and with the addition of a safe two-argument evaluator
(SES.confine(code, endowments)). By freezing everything accessible from the
global scope, it removes programs abilities to interfere with each other, and
thus enables isolated evaluation of arbitrary code.
It runs atop an ES6-compliant platform, enabling safe interaction of mutually-suspicious code, using object-capability -style programming.
See https://github.com/Agoric/Jessie to see how SES fits into the various flavors of confined EcmaScript execution. And visit https://rawgit.com/Agoric/SES/master/demo/ for a demo.
Derived from the Caja project, https://github.com/google/caja/wiki/SES .
Still under development: do not use for production systems yet, there are known security holes that need to be closed.
Incorporates (as a dependency) the Realms shim, which is a TC39 proposal spec here: https://github.com/tc39/proposal-realms .
npm install
npm run build
Run the test suite
npm test
Please help us practice coordinated security bug disclosure, by using the instructions in SECURITY.md to report security-sensitive bugs privately.
For non-security bugs, please use the regular Issues page.
FAQs
Hardened JavaScript for Fearless Cooperation
The npm package ses receives a total of 40,959 weekly downloads. As such, ses popularity was classified as popular.
We found that ses demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 6 open source maintainers collaborating on the project.
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