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SIMP Documentation, Release 0-0 Control ID Table 4.3 – continued from previous page Control Name Control Family SC-24 Fail in Known State System and Communications Protection SC-25 Thin Nodes SC-26 Honeypots SC-26(1) Honeypots (Control Enhancement) Operating SystemIndependent Applications Protection of Information at Rest System and Communications Protection System and Communications Protection System and Communications Protection System and Communications Protection System and Communications Protection SC-27 SC-28 SC-28 SC-29 Protection of Information at Rest (Control Enhancement) Heterogeneity SC-30 Virtualization Techniques SC-30(1) Virtualization Techniques (Control Enhancement) Virtualization Techniques (Control Enhancement) Covert Channel Analysis SC-30(2) SC-31 SC-31(1) SC-32 SC-33 Covert Channel Analysis (Control Enhancement) Information System Partitioning Transmission Preparation Integrity SIMP Implementation Method The forms of cryptography used are applied through SSH, SSL, and TLS. There are several unencrypted protocols used on the puppet server (Apache/YUM, DHCPD, TFTP, and DNS) that are documented in the Security Concepts document. Confidentiality of data at rest is achieved using the operating system access control. Integrity is only checked for critical operating system files. Implementations have the ability to extend the integrity checking of AIDE to include additional files that are not frequently changed. System and Communications Protection System and Communications Protection System and Communications Protection System and Communications Protection System and Communications Protection System and Communications Protection System and Communications Protection System and Communications Protection System and Communications Protection Continued on next page 162 Chapter 4. SIMP Security Concepts