PMID- 1336414 OWN - NLM STAT- MEDLINE DCOM- 19930212 LR - 20161021 IS - 0195-4210 (Print) IS - 0195-4210 (Linking) DP - 1992 TI - Network information security in a phase III Integrated Academic Information Management System (IAIMS). PG - 283-6 AB - The developing Integrated Academic Information System (IAIMS) at Columbia-Presbyterian Medical Center provides data sharing links between two separate corporate entities, namely Columbia University Medical School and The Presbyterian Hospital, using a network-based architecture. Multiple database servers with heterogeneous user authentication protocols are linked to this network. "One-stop information shopping" implies one log-on procedure per session, not separate log-on and log-off procedures for each server or application used during a session. These circumstances provide challenges at the policy and technical levels to data security at the network level and insuring smooth information access for end users of these network-based services. Five activities being conducted as part of our security project are described: (1) policy development; (2) an authentication server for the network; (3) Kerberos as a tool for providing mutual authentication, encryption, and time stamping of authentication messages; (4) a prototype interface using Kerberos services to authenticate users accessing a network database server; and (5) a Kerberized electronic signature. FAU - Shea, S AU - Shea S AD - Department of Medicine, Columbia University, New York, NY. FAU - Sengupta, S AU - Sengupta S FAU - Crosswell, A AU - Crosswell A FAU - Clayton, P D AU - Clayton PD LA - eng GR - LM04419/LM/NLM NIH HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Proc Annu Symp Comput Appl Med Care JT - Proceedings. Symposium on Computer Applications in Medical Care JID - 8113685 SB - IM MH - *Computer Communication Networks MH - *Computer Security MH - *Integrated Advanced Information Management Systems PMC - PMC2248133 EDAT- 1992/01/01 00:00 MHDA- 1992/01/01 00:01 PMCR- 1992/01/01 CRDT- 1992/01/01 00:00 PHST- 1992/01/01 00:00 [pubmed] PHST- 1992/01/01 00:01 [medline] PHST- 1992/01/01 00:00 [entrez] PHST- 1992/01/01 00:00 [pmc-release] PST - ppublish SO - Proc Annu Symp Comput Appl Med Care. 1992:283-6.