Imports github.com/go-acme/lego/certcrypto github.com/go-acme/lego/acme github.com/go-acme/lego/acme/api github.com/go-acme/lego/challenge github.com/go-acme/lego/log github.com/go-acme/lego/platform/wait golang.org/x/crypto/ocsp golang.org/x/net/idna Standard library imports bytes crypto crypto/x509 encoding/base64 errors fmt io/ioutil net/http sort strings time