36 research outputs found

    The E-Health Cloud Platform Now Supports A Keyword Search Related To Timer Use And Lab-Enabled Proxy Recoding

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    The delivery of healthcare may be vastly enhanced by the introduction of novel software, such as an electronic health record system. Users' fundamental concerns about the privacy and security of their personal information may be slowing the systems' widespread adoption. The searchable encryption (SE) method is a promising option for the electronic health record system due to its ability to provide strong security without sacrificing usability. Our research introduces a new cryptographic primitive, which we've termed "Re-dtPECK." It's a time-dependent SE approach that combines conjunctive keyword search with a designated tester and a proxy reencryption function that takes time into consideration. Patients may use this function to provide access to their data to carefully chosen researchers for a short period of time. Any allotted period for a delegatee to view and decode their delegator's encrypted papers may be extended if required. It's possible that the delegate's access and search capabilities will expire after a certain period of time has passed. It's also capable of conjunctive keyword searches and resisting assaults based on guessing. Only the authorized tester is allowed to look for the existence of certain keywords in the proposed method. We provide a system model and a security model for the proposed Re-dtPECK approach to prove that it is a safe and effective replacement for the existing standard. Simulations and comparisons with other methods show that it requires very little bandwidth and storage space for data

    Privacy preserving search services against online attack

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    INTEGRATED KEY SEARCH WITH SELECTED SUPPORTER AND TEMPORAL ARRANGEMENT ACTIVATED CONCEAL RE-FORMATION UTILITY FOR ON-LINE HEALTH RECORDS

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    A digital health record technique is one application which will bring great convenience in healthcare. Within this paper, we introduce one cryptographic primitive named as conjunctive keyword search with designated tester and timing enabled proxy re-file file encryption function, which is a type of sometime-dependent SE plan. We design one searchable file encryption plan supporting secure conjunctive keyword search and approved delegation function. The searchable file encryption (SE) plan may well be a technology to include security protection and favorable operability functions together, that may play a huge role within the e-health record system. As opposed to existing schemes, the task is able to do timing enabled proxy re-file file encryption with effective delegation revocation. The security and privacy within the sensitive private information would be the major concerns within the users that could hinder further development and broadly adoption within the systems. It might enable patients to delegate partial access legal rights along with other individuals to function search functions over their records in the while period. How big time-frame for your delegate to look and decrypt the delegator’s encrypted documents may be controlled. The comparison and extensive simulations show it provides a small computation and storage overhead. We formulate a method model along with a security model for your suggested Re-dtPECK plan to exhibit it's competent plan proven secure within the standard model. The experimental results and security analysis indicate our plan holds much greater security compared to existing solutions by having an acceptable overhead for cloud applications

    SEARCH FOR SYNCHRONIZED KEYWORDS USING THE SELECTED LAB FEATURE AND ENABLE RE CRYPTO SYSTEM FOR ELECTRONIC HEALTH CLOUDS

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    The go through able file encryption (SE) plan is really a technology to include security protection and favorable operability functions together, which could play a huge role within the e-health record system. A digital health record product is a singular application which will bring great convenience in healthcare. Within this paper, we introduce a singular cryptographic primitive named as conjunctive keyword investigate with designated tester and timing enabled proxy re-file encryption function, which is a type of a closing-dependent SE plan. We design a singular hunt for able file encryption plan supporting secure conjunctive keyword hunt and approved delegation function. In contrast to existing schemes, the work is capable of timing enabled proxy re-file encryption with effective delegation revocation. The security and privacy from the sensitive private information would be the major concerns from the users that could hinder further development and broadly adoption from the systems. We formulate a method model along with a security model nonetheless suggested Re-deck plan to exhibit that it's a competent plan demonstrated secure within the standard model. The comparison and extensive simulations show it features a low computation and storage left overhead. It might enable patients to depute partial access legal rights to other people to function comb functions bygone their records in a couple of minutes age. The breadth of your time-frame notwithstanding assign to scout and decode the delegator’s encrypted documents might be controlled

    A NOVEL AND CAPABLE SCHEME ASSURANCE DATA PRIVACY OF ENCRYPTION CATEGORY

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    During this paper, we must have another critical property of smooth projective hash functions. We introduce two games, namely semantic-security against selected keyword attack as well as in distinguish ability against keyword guessing attack1 to capture the safety of PEKS ciphers text and trapdoor, correspondingly. A principal component of our construction for dual-server public key file encryption with keyword search is smooth projective hash function, an idea created by Cramer and Shoup.  In spite of being free of secret key distribution, PEKS schemes are afflicted by an natural insecurity concerning the trapdoor keyword privacy, namely inside Keyword Guessing Attack. Regrettably, it has been established the conventional PEKS framework is struggling with an all-natural insecurity known as inside keyword guessing attack launched using the malicious server. To handle this security vulnerability, we advise a totally new PEKS framework named dual-server PEKS. You have to show a regular construction of secure DS-PEKS from LH-SPHF. Our plan is easily the most efficient when it comes to PEKS computation. For the reason that our plan doesn't include pairing computation. Particularly, the present plan necessitates the most computation cost because of 2 pairing computation per PEKS generation

    Searchable Encryption with randomized ciphertext and randomized keyword search

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    The notion of public key encryption with keyword search (PEKS) was introduced to efficiently search over encrypted data. In this paper, we propose a PEKS scheme in which both the encrypted keyword and the trapdoor are randomized, so that the cloud server is not able to recognize identical queries. Our scheme is CI-secure in the single-user setting and TI-secure in the multi-user setting with multi-trapdoor

    CIPHER PUBLIC INPUT FOR TWICE ATTENDANT WITH KEYWORD SEARCH FOR PROTECTED CLOUD STORAGE

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    One of the components of our main components to encrypt the main dual server files with keyword search is the unhindered slider segmentation function, an idea created by Kramer and Shrub. In this paper, we need to have another critical function of smooth projection fragmentation. In contrast, we offer two games, in particular semantic security against the attack on selected keywords, and the ability to distinguish between a guessing attack1 to capture the security of PEHER text in ciphers and trapdoor. Although they do not have secret key distribution, PEKS systems are basically unsafe with regard to the word trapdoor contained in the keyword guess. Unfortunately, the traditional PEKS system has been created to deal with natural insecurity, known as the guessing word for keywords that were used on a malicious server. To eliminate this vulnerability, we recommend a completely new PEKS system called PEKS Dual Servers. You should show a regular build of DS-PEKS in a safe place from LH-SPHF. Our plan is more effective when it comes to calculating PEKS. Since our plan does not include a conjugation account. In particular, the current plan requires more arithmetic costs, as each PEKS production has two calculations

    Verifiable key-aggregate searchable encryption with a designated server in multi-owner setting

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    Key-aggregate searchable encryption (KASE) schemes support selective data sharing and keyword-based ciphertext searching by using the constant-size shared key and trapdoor, making these schemes attractive for resource-constrained users to store, share, and search encrypted data in public clouds. However, most previously proposed KASE schemes suffer from our proposed "off-line keyword guessing attack (KGA)" and some other weaknesses. Consequently, they fail to gain the keyword ciphertext indistinguishability and trapdoor indistinguishability, which are vital security goals of searchable encryption. Inspired by the relationship of public key encryption with keyword search (PEKS) and KASE, we design a new KASE scheme called key-aggregate searchable encryption with a designated server (dKASE). The dKASE scheme achieves our proposed keyword ciphertext indistinguishability against chosen keyword attack (KC-IND-CKA) and keyword trapdoor indistinguishability against keyword guessing attack (KT-IND-KGA) security models, where the latter model captures off-line KGA. Then, we extend the dKASE scheme to verifiable dKASE in multi-owner setting (dVKASEM) scheme. With dVKASEM, when multiple data owners authorize a user to access data, the user merely needs to store his single key and generate a single trapdoor to query these owners’ data. Besides, the adoption of the aggregate signature significantly reduces the overhead of verifying whether data has been tampered with. Performance analysis illustrates that our schemes are efficient
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