منابع مشابه
Intra-file Security for a Distributed File System
Cryptographic file systems typically provide security by encrypting entire files or directories. This has the advantage of simplicity, but does not allow for fine-grained protection of data within very large files. This is not an issue in most general-purpose systems, but can be very important in scientific applications where some but not all of the output data is sensitive or classified. We pr...
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Security evaluation systems usually use various information sources to estimate computer network security. One of the important tasks in these systems is integration and storage of information from various sources. The paper is devoted to investigation and development of models and methods to integrate open security databases into one repository. The model of integration proposed in the paper h...
متن کاملNFS File Handle Security
Each file on an NFS server is uniquely identified by a persistent file handle that is used whenever a client performs any NFS operation. NFS file handles reveal significant amounts of information about the server. If attackers can sniff the file handle, then they may be able to obtain useful information. For example, the encoding used by a file handle indicates which operating system the server...
متن کاملStrong Security for Distributed File Systems
We have developed a scheme to secure networkattached storage systems against many types of attacks. Our system uses strong cryptography to hide data from unauthorized users; someone gaining complete access to a disk cannot obtain any useful data from the system, and backups can be done without allowing the superuser access to unencrypted data. While denial-of-service attacks cannot be prevented...
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The need for petaand exabyte scale parallel file systems that support high-performance computing (HPC) has been rapidly increasing. These systems have unique demands, different from those of traditional distributed file systems. As a result, securing I/O in big, parallel file systems without significantly impacting performance has proven challenging. Parallel file systems are commonly composed ...
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ژورنال
عنوان ژورنال: ACM SIGOPS Operating Systems Review
سال: 1997
ISSN: 0163-5980
DOI: 10.1145/250007.250008