: one of two formats at the time of writing: '''shavar''' and '''sha256'''. More on the formats below.
===== List types formats =====
The two different types formats of lists currently supported are named '''shavar''' and '''sha256'''. While both publish hashes of the actual data sets they do so in slightly different ways. shavar lists use the hash prefix style of publication described in the [https://developers.google.com/safe-browsing/developers_guide_v2 v3/update-guide Safe Browsing] protocol specification while sha256 lists publish the entire hash(all 32 bytes) rather than just the first 4 bytes of a hash. As a result, any list published in a shavar format has to "phone home" to the service to fetch an entire hash.
==== How to Publish a new data set via the Safe Browsing protocol at Mozilla ====