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- W1993323720 abstract "ABSTRACT Security of storage and archival systems has become increasingly important in recent years. Due to the increased vulnerability of the existing systems and the need to comply with government regulations, different methods have been explored to create a secure storage system. One of the primary problems to ensuring the integrity of storage systems is to make sure a file cannot be changed without proper authorization. Immutable storage is storage whose content cannot be changed once it has been written. For example, it is apparent that critical system files and other important documents should never be changed and thus stored as immutable. In multimedia systems, immutability provides proper archival of indices as well as content. In this paper, a survey of existing techniques for immutability in file systems is presented. Keywords : immutability, secure storage, archival system, WORM. 1. INTRODUCTION Immutability refers to the property, which, once applied or given to an object, prohibits any subsequent changes to that object. In terms of file systems, immutability refers to preventing any changes or modifications to the contents of the file [1]. The primary goal of achieving immutable storage is to attain the capability of assigning the immutable or unchangeable attributes to specified file objects. Multimedia is one of the prime application areas for immutable storage and archival. In most cases, multimedia objects, once created, are not changed or altered afterwards. In particular, multimedia can be considered to be a good target for immutable storage systems because multimedia objects are frequently created, distributed, and in most cases are not supposed to change other than through appending. Hence, incorporating the immutable attribute to multimedia objects would enable unaltered storage for critical information. In view of copyright and intellectual property legislation, it has become necessary to verify and ensure the authenticity of many multimedia objects. Immutable storage systems provide this important protection to documents and objects that render them impossible to change or modify, thereby ensuring their integrity. In the recent years, the proliferation of the Internet has opened new opportunities in multimedia content distribution and storage. At the same time, this has given rise to increased levels of unauthorized intrusions and attacks into computer systems. In most cases, intruders gained root level access to systems making the storage prone to modification and malicious tampering. The impact on multimedia is the illegal serving of copyrighted content from compromised machines referred to as zombies." @default.
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- W1993323720 date "2005-01-17" @default.
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- W1993323720 title "<title>The techniques and challenges of immutable storage with applications in multimedia</title>" @default.
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- W1993323720 doi "https://doi.org/10.1117/12.588103" @default.
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