This comprehensive introductory and overview work on cryptography describes a large number of encryption, signature, and hash methods in an illustrative manner, without delving unnecessarily deep into the mathematics. It also addresses many methods that are rarely found in other cryptography books. Based on this broad foundation, the book explores many specific topics: cryptographic protocols, implementation issues, security evaluations, side-channel attacks, malware attacks, user acceptance, key management, smart cards, biometrics, trusted computing, and much more are covered in detail. Special cryptographic applications such as digital rights management are also included. Additionally, particular emphasis is placed on topics such as public key infrastructures (PKI) and cryptographic network protocols (WEP, SSL, IPsec, S/MIME, DNSSEC, and many others).