Frequency Attack Essay

Great Essays
2.3.1 Frequency attacks
Techniques that are based on deterministic encryption are usually susceptible to frequency attacks. The party receiving the “so thought” secure encrypted data can perform a frequency analysis on selected fields in order to uncover the original data. For example, if the attacker has access to the demographic or census data of a particular population, he could calculate the frequency of a selected field and try to map it to the encrypted data frequencies to deduce a relationship between the two.
To illustrate the feasibility of a frequency attack, consider a town where “Smith” is the most popular last name. If a database administrator owns a database with encrypted last names of patients of that town’s hospital, he can
…show more content…
Some of the techniques that rely on phonetic encoding include Karakasidis and Verykios [68][72]. Exact matching only
Real-world data sets are dirty: two records in different databases that are referring to the same individual could contain typing variations in different fields. For example, an individual named John could also be named Jon (missing the h) in another database. If only exact matching is used to perform record linkage, the process will produce additional false negative results.
The techniques that rely on exact matching are: Berman [10], O’Keefe et al. [86], Dusserre et al. [40], Bouzelat et al. [13], Quantin et al. [97][98][99], El Emam et al. [41], and Schadow et al. [107]. Reference strings
Protocols relying on embedding strings as vectors based on distances from a set of reference strings or using other methodologies based on reference strings do not have a consistent performance or accuracy measurement. The performance and accuracy of the protocol will largely depend on the chosen reference strings. It is rather risky for an organization to attempt to use such protocols unless they have been tested and proven to work with their datasets (which might be difficult if privacy needs to be maintained at all

Related Documents

  • Improved Essays

    The Blooding The Blooding, written in 1989 by Joseph Wambaugh, relates the story of a two English girls brutally raped and strangled three years apart in the 1980’s. The novel follows the investigation of the Narborough murder and how the discovery of a new forensic technique was vital to solving the case and finding the killer. This discovery of genetic fingerprinting by Alec Jeffreys during the time of this investigation revolutionized the world of forensic science. The novel begins by setting the scene in Narborough, England, a small village southwest of the city of Leicester.…

    • 1231 Words
    • 5 Pages
    Improved Essays
  • Great Essays

    Problem Statement: Patient data security is an ongoing and evolving problem in healthcare. According to the US Census Bureau, US Department of Health and Human Services, “143 million patients’ records have been compromised over the past five years…” (Zeadally, Isaac, & Baig, 2016). A patient’s medical record information is a highly sought after commodity among hackers, cyber criminals, and identity thieves because it contains “personal, insurance, and financial information”. They are able to sell this information for “up to $251 per record” as opposed to stolen credit card numbers, which they are only able to sell for “33 cents per number”.…

    • 1371 Words
    • 6 Pages
    Great Essays
  • Great Essays

    Target Swot Analysis Essay

    • 1064 Words
    • 4 Pages

    a) Mission Statement (Current)- Target’s mission is to make Target the preferred shopping destination for their guests by delivering outstanding value, continuous innovation and an exceptional guest experience by consistently fulfilling our Expect More. Pay Less. ® brand promise." b) New or Revised Mission Statement- Provide our guest with innovative solutions to enhance their shopping experience through easy and convenient channels while delivering exceptional service, outstanding value, and quality products and services that consistently fulfills the Expect More. Pay Less.…

    • 1064 Words
    • 4 Pages
    Great Essays
  • Improved Essays

    The HIPPA Privacy Rule Are medical records really private and is there a difference between the Health Insurance Portability and Accountability Act (HIPPA) and the Privacy Rule? In essence, the two are the same. However, the main difference is that the HIPPA Act, enacted in 1996, was not signed into legislation after the Department of Health and Human Services (DHHS) applied pressure to enforce the privacy issues within the medical field (Bethel University, 2015). Since legislation did not pass this law after the three-year time limit, in 2003, DHHS then broadcasted a specific set of rules concerning the use and disclosure of medical records, requiring health care providers to comply. In premise, the HIPPA act is nothing more than a disclosure…

    • 827 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    The series of September 11, 2001 were attack by the Islamic terrorist group al-Qaeda on the United States. The attack killed 2,996 people and injured 6,000 people. United States used 10 billions to fix the damaged properties, but 3 trillion in total. United Airlines and American Airlines were hijacked by al-Qaeda. Two airplanes were crashed to the North and South 110-story towers in New York.…

    • 361 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    HIPAA Breach Case Study

    • 306 Words
    • 2 Pages

    A industrial organization associate of the Texas fitness Harris Methodist castle without a doubt worth clinic has prompted considered one among the biggest HIPAA breaches to date and the most important exposure of patient PHI to rise up those 12 months. this is the 1/3 fundamental information safety breach to have an effect on Texas health hospitals. in accordance with HIPAA Breach Notification regulations, the hospital is now in the system of notifying all 277,000 of its patients to tell them of the breach. sufferers of statistics breaches ought to be allowed the opportunity to take the vital precautions to prevent losses or harm being suffered because of PHI disclosed.…

    • 306 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    Avmed: Forensic Analysis

    • 294 Words
    • 2 Pages

    In December of 2009 a company named AvMed, which is a Florida based not-for-profit health plan provider, had two laptops stolen (Anderson,2010; “We help our members”, n.d.). One of the laptops was recovered and it contained encrypted patient information. However, the second laptop was not encrypted and it contained names, Social Security numbers, addresses, birthdays and other healthcare information. Initial reports indicated a little over two hundred thousand clients were impacted, but a forensic analysis by Price Waterhouse Coopers revealed that the scope of the data breach may involve 1.2 million customers.…

    • 294 Words
    • 2 Pages
    Improved Essays
  • Great Essays

    Why Collect HR Data

    • 1110 Words
    • 5 Pages

    Data Protection Act This act applies to all organisations that process data relating to their staff and customers. It is the main legal framework in UK that protects personal data. The act contains 8 data protection principles which are: Personal data should be processed fairly and lawfully, this can be achieved by asking the employees to use their information, on the employment contract.…

    • 1110 Words
    • 5 Pages
    Great Essays
  • Improved Essays

    A gigantic quantity of individual health information is accessible in modern decades and dispositioning of any part of this information establishes a huge risk in the field of health care. Enduring anonymization methods are only appropriate for single susceptible and low down dimensional data to remain with privacy particularly like generalization and bucketization. We propose an anonymization technique that is a amalgamation of the betterment of anatomization, and improved slicing approach observing to the principle of k-anonymity and l-diversity for the reason of dealing with high dimensional data along with multiple susceptible data. The anatomization approach disrupts the correlation detected between the quasi identifier attributes and…

    • 163 Words
    • 1 Pages
    Improved Essays
  • Improved Essays

    Terrorist Watch List

    • 474 Words
    • 2 Pages

    With new technology emerging every day, one would think that governmental technical errors would be limited. Especially when those errors intertwine with top secret classified information. After countless acts of terror, it was evident that something had to be done to prevent such tragedies, rather than focusing on the cleanup. A database of suspected terrorists known as the Terrorist Watch List was created. A place where multiple U.S. government agencies can share relevant information, instead of maintaining separate lists.…

    • 474 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    The age of computers has drastically enhanced our ability to view, document and diagnose without the need to write on paper. There are many software applications available for use to aide in recording a patient’s health record. The technology of today is designed to capture the whole picture of a patient’s medical conditions. The paper medical record could often be illegible and often mistakes were made when transcribing, causing misinformation used to treat the patient. The benefits are huge, not only can the Electronic Medical Record (EMR) be seen by anyone with the proper access to that EMR system.…

    • 1476 Words
    • 6 Pages
    Improved Essays
  • Decent Essays

    Data security continues to be one major financial issue in healthcare. Throughout, the year’s data breech has affected small and large entities. It has compromised patient’s confidential information and company’s financial records. As companies continue to upgrade old systems, they must invest on a reliable network infrastructure in order to comply with HIPPA regulations and this can be costly. As innovation continues to evolve, entities upgrade stand-alone or laptops with wireless smart technology to better serve patient’s needs.…

    • 185 Words
    • 1 Pages
    Decent Essays
  • Superior Essays

    1.2. Previous Work The first symmetric key schemes for keyword search over encrypted data are proposed in [27]. The authors consider a setting in which the sender of file encrypts each word of a file separately. Goh [15] proposed a method for secure index using Bloom filters and introduced the notion of semantic security against adaptive chosen-keyword attacks.…

    • 2042 Words
    • 8 Pages
    Superior Essays
  • Improved Essays

    Data Mining Essay

    • 798 Words
    • 4 Pages

    The topic that I am interested in is Data Mining. This is interesting to me because it can help in various areas of society. This includes the medical field, elderly care, and commerce. This is controversial because of the amount and type of personal data that is being collected. We are living in the “Big Data” era where there are many ways to collect data.…

    • 798 Words
    • 4 Pages
    Improved Essays
  • Great Essays

    FT-Ir Analysis Essay

    • 993 Words
    • 4 Pages

    Table: 9 FT- IR analysis of methanol extract of M. concanensis leaves S. No Peak values Intensity range Intensity Group assignment Functional groups 1 3972.43 0.0086 Unknown 2 3859.33 0.0412 Unknown 3 3805.79 0.0733 Unknown 4…

    • 993 Words
    • 4 Pages
    Great Essays