His health was deteriorating by the day.

In this chapter two types of signature schemes satisfying homomorphic properties are presented. In the first section a description of the homomorphic signature schemes suitable in the single-user scenario is provided.

Four in five white evangelicals who cast a vote last week did so for president-elect Trump, who repeatedly encouraged violence at his rallies and bragged that being a celebrity meant no one would stop him from grabbing women “by the pussy”.

Ain't nothin' gonna break my stride / Nobody gonna slow me down / Oh no, I got to keep on moving