The libssl problem is also being discussed over at GitHub Issues.
@dhollingsworth could you please change the post titles to something more appropriate, such as “Duplicati on Linux requires OpenSSL 1, which is not supported on recent Linux distros”? The long quoted error message “EVP_MD” makes it look like this issue involves some obscure set up, but we now know that this bug is a serious problem for the future of Duplicati on Linux.