Message digests are secure one-way hash functions that take arbitrary-sized data and output a fixed-length hash value.
JSSE Docs for jdk 5. Essential reference for HTTPS posts via APIs like commons-http-client. If you have ever tried to post to a https programatically probably you got ‘a unable to find valid certification path to requested target’.
Subversion tricks. For example, how can i get the revision number for a tag.