This is the best book on SSL/TLS. Rescorla knows SSL/TLS as well as anyone and presents it both clearly and completely.... At times, I felt like hes been looking over my shoulder when I designed SSL v3. If network security matters to you, buy this book. Paul Kocher, Cryptography Research, Inc. Co-Designer of SSL v3 Having the right crypto is necessary but not sufficient to having secure communications. If youre using SSL/TLS, you should have SSL and TLS sitting on your shelf right next to Applied Cryptography. Bruce Schneier, Counterpane Internet Security, Inc. Author of Applied Cryptography Everything you wanted to know about SSL/TLS in one place. It covers the protocols down to the level of packet traces. It covers how to write software that uses SSL/TLS. And it contrasts SSL with other approaches. All this while being technically sound and readable Radia Perlman, Sun Microsystems, Inc. Author of Interconnections Secure Sockets Layer (SSL) and its IETF successor, Transport Layer Security (TLS), are the leading Internet security protocols, providing security for e-commerce, web services, and many other network functions. Using SSL/TLS effectively requires a firm grasp of it