Does Node.js’s npm provide cryptographic authentication and integrity validation?

Does Node.js’s npm package manager cryptographically validate its payload’s authentication and integrity for all packages after downloading them and before installing them?
I see a lot of guides providing installation instructions with ste… Continue reading Does Node.js’s npm provide cryptographic authentication and integrity validation?

Is it possible to disallow external IPs from accessing a page of a React site? [migrated]

I’m currently learning React to host a personal website (on an Ubuntu server) and am port forwarding it to allow access from the internet.
However, for security reasons, I’d like one or more pages to only be accessed on my LAN. If an exter… Continue reading Is it possible to disallow external IPs from accessing a page of a React site? [migrated]

Implications of SHA256 implementation producing false / unexpected hashes

I found that one of our programs uses an sha256 implementation, that produces different hashes for same inputs, compared to standard libraries (in this case compared to node:crypto and Web Crypto API.
The hashes are different for character… Continue reading Implications of SHA256 implementation producing false / unexpected hashes