Stefan Bühler nettle-bugs@stbuehler.de writes:
My pull request for sjcl (javascript crypto) chacha includes those test vectors in "json" format (right now at https://github.com/stbuehler/sjcl/blob/feature-chacha20/test/chacha20_vector..., but hopefully in upstream sjcl soon, in which case I'll delete my feature branch).
It would make sense to att at least a few of those to nettle's testsuite/chacha-test.c. Thanks for the pointer!
Regards, /Niels