Object Details Author Churchhouse, R. F Contents 1. Introduction -- 2. From Julius Caesar to simple substitution -- 3. Polyalphabetic systems -- 4. Jigsaw ciphers -- 5. Two-letter ciphers -- 6. Codes ...

At the heart of this shift is the opportunity for creators, brands, and businesses to create OTT app and deliver content directly to their audiences, bypassing traditional gatekeepers.