To use starttls, get next package.

http://www.ueda.info.waseda.ac.jp/~ueno/tmp/starttls-0.2.tar.gz

To use DL modules(md5 and sha1), get next package.

Original:
ftp://opaopa.org/pub/elisp/hmac-0.2.tar.gz

GPL2 version:
ftp://kiss.kake.info.waseda.ac.jp/pub/tmp/hmac-dl-0.1.tar.gz