Topics: information security, cryptography, access control, crypto, Codebook Cipher, Symmetric Key Crypto, block ciphers, Public Key Crypto, Elliptic Curve Cryptography, public key notation, Public Key Infrastructure, has functions, Advanced Cryptanalysis, Engima, Enigma Cipher Machine, authentication, biometrics, authorization, Access Control Matrix, Multilevel Security Models, firewalls, Intrusion Detection Systems, Simple Authentication Protocols, Authentication Protocols, Real-World Security Protocols, software flaws, malware, botnet, Digital Rights Management, Operating Systems, Operating Systems functions, Trusted Operating System