tor/changes/feature8961-replaycache-sha256

  o Minor enhancement (replaycache):
    - The replay cache now uses SHA256 instead of SHA1.
      Implements feature #8961.
      Patch by "teor", issue reported by "rransom".
Use SHA256 in the replaycache, rather than SHA1 This migrates away from SHA1, and provides further hash flooding protection on top of the randomised siphash implementation. Add unit tests to make sure that different inputs don't have the same hash. 2015-11-24 09:08:53 +11:00			`o Minor enhancement (replaycache):`
			`- The replay cache now uses SHA256 instead of SHA1.`
			`Implements feature #8961.`
			`Patch by "teor", issue reported by "rransom".`