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Questions tagged [access-control]

Access-control is a possible goal of cryptography, where the idea is to restrict access to documents, equipment, locations, or keys to individuals who are authorized such access.

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How exactly does ASKE (Alpha Secure Key Establishment) in Zigbee work?

I am working on Zigbee security. For key establishment, some approaches are given in Zigbee. Some of them are: ASKE (Alpha Secure Key Establishment), ASAC (Alpha Secure Access Control), and SKKE (...
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What are the current limitations (and capabilities) of Functional Encryption used for access control?

I'm trying to make my way in Functional Encryption used for access control. I read a lot of papers such as "How to Run Turing Machines on Encrypted Data", "Functional Encryption: New Perspectives and ...
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Decrypting partial message.

I'm wondering whether such interesting symmetric-key encryption exists or not (from theoretical perspective): We encrypt a vector of messages $(m_1,m_2,\cdots,m_\ell)$ using the symmetric key $K$ to ...
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Role-based access control security

How secure is role-based access control (RBAC). What kind of security does it incorporate to make sure no data is leaked and protected, especially from the admins responsible for assigning roles to ...
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Hash function notations and their corresponding existing cryptographic hash algorithm

I am implementing Role-based access control by referencing the paper Enforcing Role-Based Access Control for Secure Data Storage in the Cloud. In page 6, they have mentioned to choose hash functions $...
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Attribute based access control and role based, online bookstore example

I am asked to answer a question that says: One online book-store wants to grand access to clients regarding their subscription. There are 3 types of subscriptions A , B and C. Customers get access ...
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Is there a protocol for granting access rights to publicly stored encrypted data?

Alice is a data provider and Bob and Charlie are consumers. Alice has a set of data assets $A_*$. Alice wants to share some of her assets with Bob, some with Charlie (they are not necessarily mutually ...