I have been using mod_auth_digest.so.. and it works great..
here is how the working conf looks..
Options Indexes FollowSymlinks ExecCGI
AuthType Digest
AuthName "private"
AuthUserFile /etc/httpd/passwd/digest
Require valid-user
//other settings
Also
[Apache apache-1.3.41_1]
Just checked my apache's httpd.conf and saw that in my configuration
file says
LoadModule digest_module libexec/apache/mod_digest.so
I read somewhere that "mod_digest is a rather old module, which would be
an older version of the digest authentication specificat