Support for other openssl algorithms in crypto functions

[alsastre]

Is your feature request related to a problem? Please describe

When working with crypto functions like createHash I would like to support the same algorithms that the underlying openssl supports.

In my current container I can do:

echo "test" | openssl dgst -sha3-256 -hex -r

But nginx reports:

js exception: TypeError: not supported algorithm: "sha3-256"
    at createHash (native)
    at hash_token (/etc/nginx/njs/hashtoken.js:4)

Describe the solution you'd like

JS code I want to run:

return require('crypto').createHash('sha3-256')
                            .update(r.variables.api_key).update(r.variables.hash_secret)
                            .digest('hex');

Additional context

Nginx version: nginx/1.29.6

built by gcc 14.2.0 (Debian 14.2.0-19)
OS: Linux 6.12.76-linuxkit

njs:0.9.6

[alsastre]

I see that we do not call openssl but the algorithms are implemented inside the njs codebase here and the list is limited.

So each hash algorithm should be implemented manually and added into the list.

Let's wait then to see if more people require this feature and I will see if I can work for now with SHA-256.

[xeioex]

Hi @alsastre,

I think we can and should switch here to openssl, we use it already for Webcrypto module, whereas crypto module was developed a while ago. Thank you for prodding. Will do in the upcoming release.