KAPRE: Key-aggregate proxy re-encryption for secure and flexible data sharing in cloud storage
G Pareek, BR Purushothama - Journal of information security and …, 2021 - Elsevier
Key-aggregate cryptosystems (KAC) have attracted significant attention from the research
community because of their elegance and efficiency in enforcing predefined access control …
community because of their elegance and efficiency in enforcing predefined access control …
Proxy re-encryption for fine-grained access control: Its applicability, security under stronger notions and performance
G Pareek, BR Purushothama - Journal of Information Security and …, 2020 - Elsevier
Proxy Re-encryption (PRE) offers an efficient solution for enforcing access control on
outsourced data through delegation of decryption rights of a delegator to a delegatee …
outsourced data through delegation of decryption rights of a delegator to a delegatee …
Non-transitive and collusion resistant quorum controlled proxy re-encryption scheme for resource constrained networks
SM Patil, BR Purushothama - Journal of Information Security and …, 2020 - Elsevier
We focus on proposing a threshold proxy re-encryption scheme for networks with resource
constrained devices. We show that the existing quorum controlled proxy re-encryption …
constrained devices. We show that the existing quorum controlled proxy re-encryption …
TP-PRE: threshold progressive proxy re-encryption, its definitions, construction and applications
G Pareek, BR Purushothama - Journal of Ambient Intelligence and …, 2021 - Springer
Proxy re-encryption (PRE) is a public-key cryptography primitive that delegates the
decryption capabilities of a user (called delegator) to another user (called delegatee) using …
decryption capabilities of a user (called delegator) to another user (called delegatee) using …
Cloud-based data-sharing scheme using verifiable and cca-secure re-encryption from indistinguishability obfuscation
A cloud-based re-encryption scheme allows a semi-trusted cloud proxy to convert a
ciphertext under delegator's public-key into a ciphertext of delegatee's. However, for an …
ciphertext under delegator's public-key into a ciphertext of delegatee's. However, for an …
Conditional Attribute-Based Proxy Re-Encryption: Definitions and Constructions from LWE
Attribute-based proxy re-encryption (AB-PRE) is one of the essential variants for proxy re-
encryption. It allows a proxy with a re-encryption key to transform a ciphertext associated …
encryption. It allows a proxy with a re-encryption key to transform a ciphertext associated …