Your old Let's Encrypt certificate may slow your Go app down(blog.espe.tech)

1 pointsby lnspvor 4 Jahren1 comments

blog.espe.tech

Your old Let's Encrypt certificate may slow your Go app down

https://blog.espe.tech/posts/letsencrypt-may-slow-you-down/

1 comments

lnspvor 4 Jahren

TLDR: Your Let's Encrypt certificate may have an RSA private key. Go's TLS implementation is far better optimized for ECDSA keys. Switching from RSA to ECDSA saves about 95% of CPU cycles due to the better implementation.