GKS Digital Services, LLC Information Resources GCK's Cybercrime/Cyberforensics URLs GCK's Information Security URLs Article library The Role of Computer Forensics in Law Enforcement (OFFICER.com, January 2005) An Overview of Cryptography An Overview of Steganography for the Computer Forensics Examiner (FBI Forensic Science Communications, 6(3), July 2004) An Overview of TCP/IP Protocols and the Internet "Job Aids" ASCII and Extended ASCII Table The BASE64 and BASE32 Alphabets File Signature Table "Bad" TCP/UDP Ports Boolean logic: AND, OR, and XOR logic table in hex