UNIX internals: the new frontiers
UNIX internals: the new frontiers
A Metaobject Architecture for Fault-Tolerant Distributed Systems: The FRIENDS Approach
IEEE Transactions on Computers
An analysis of security incidents on the Internet 1989-1995
An analysis of security incidents on the Internet 1989-1995
The implementation of a CORBA object group service
Theory and Practice of Object Systems - Special issue high availability in CORBA
Chameleon: A Software Infrastructure for Adaptive Fault Tolerance
IEEE Transactions on Parallel and Distributed Systems
Internet Security: Professional Reference with Cdrom
Internet Security: Professional Reference with Cdrom
Middleware Support for Voting and Data Fusion
DSN '01 Proceedings of the 2001 International Conference on Dependable Systems and Networks (formerly: FTCS)
Diversity against Accidental and Deliberate Faults
CSDA '98 Proceedings of the Conference on Computer Security, Dependability, and Assurance: From Needs to Solutions
AQuA: An Adaptive Architecture that Provides Dependable Distributed Objects
SRDS '98 Proceedings of the The 17th IEEE Symposium on Reliable Distributed Systems
Effective Fault Treatment for Improving the Dependability of COTS and Legacy-Based Applications
IEEE Transactions on Dependable and Secure Computing
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This work presents an implementation technique which exploits separation of concerns and reuse in a CORBA-based, multi-tier architecture to improve the security (availability, integrity, and confidentiality) level of an existing application. Functional properties are guaranteed via wrapping of the existing software modules. All security mechanisms are handled by the business logic of the middle-tier. Availability and integrity are achieved via replication of the functional modules. Confidentiality is obtained via cryptography. The technique is presented with regard to a case study application. We describe the conceptual model behind the architecture, discuss implementation issues, and present technical solutions.