2011
DOI: 10.5120/1790-2473
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A New Watermarking Approach for Non numeric Relational Database

Abstract: In this paper, a novel watermarking technique is proposed for data authentication and integrity of Relational Database. For integrity verification of tables in the database, the watermark has to depend on a secret key and on the original copy of that table. It is important that the dependence on the key should be sensitive. The proposed method makes use of the concept of eigen values by constructing a tuple -Relation matrix for each tuple. The eigen values are used for generating the watermark for a record in … Show more

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Cited by 14 publications
(13 citation statements)
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“…Such techniques are not robust against malicious attacks. Techniques such as (RBW), (TFBW), (BIW), and bring some distortions in the dataset, and therefore, they are not suitable for watermarking of genetic data. To the best of our knowledge, there is not a single technique for genetic data that can provide robust and distortion‐free watermarking.…”
Section: Discussionmentioning
confidence: 99%
“…Such techniques are not robust against malicious attacks. Techniques such as (RBW), (TFBW), (BIW), and bring some distortions in the dataset, and therefore, they are not suitable for watermarking of genetic data. To the best of our knowledge, there is not a single technique for genetic data that can provide robust and distortion‐free watermarking.…”
Section: Discussionmentioning
confidence: 99%
“…-Điểm khác của lƣợc đồ thủy vân [3] và [1] là dùng hàm băm các giá trị e j sau khi ghép với khóa thủy vân K. Chuyển các giá trị băm thành các ký tự thủy vân W j theo công thức:…”
Section: ) Sinh Thủy Vân Của Các Tác Giả [1] [3]unclassified
“…Bedi R. và cộng sự [1] đã đƣa ra một lƣợc đồ thủy vân cho dữ liệu kiểu văn bản. Tƣ tƣởng của lƣợc đồ này là sử dụng một khóa thủy vân đƣợc xây dựng từ các bộ trong quan hệ và nhúng khóa này vào các thuộc tính có ảnh hƣởng không lớn đến giá trị sử dụng của dữ liệu.…”
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“…Approached proposed by [10] uses non numeric attribute to compute eigen matrix and eigen value to generate secrete key and to identify position to watermark. This method limits itself as fewer eigen matrix may have fewer than real roots, or no real roots at all and ASCII value cannot be computed for Hindi phonemes.…”
Section: Related Workmentioning
confidence: 99%