Imports github.com/go-acme/lego/v4/acme github.com/go-acme/lego/v4/acme/api github.com/go-acme/lego/v4/certcrypto github.com/go-acme/lego/v4/challenge github.com/go-acme/lego/v4/log github.com/go-acme/lego/v4/platform/wait golang.org/x/crypto/ocsp golang.org/x/net/idna Standard library imports bytes crypto crypto/x509 crypto/x509/pkix encoding/asn1 encoding/base64 encoding/json errors fmt io math/big math/rand net/http strings time