scholarly journals Dual System Encryption via Doubly Selective Security: Framework, Fully Secure Functional Encryption for Regular Languages, and More

2014 ◽  
pp. 557-577 ◽  
Author(s):  
Nuttapong Attrapadung
Keyword(s):  
Dual System ◽  
Regular Languages ◽  
Functional Encryption ◽  
Security Framework ◽  
Dual System Encryption ◽  
Selective Security

scholarly journals Predicate signatures from pair encodings via dual system proof technique

2019 ◽  
Vol 13 (3-4) ◽  
pp. 197-228
Author(s):  
Mridul Nandi ◽  
Tapas Pandit
Keyword(s):  
Dual System ◽  
Regular Languages ◽  
Adaptive Model ◽  
Proof Technique ◽  
Encoding Scheme ◽  
Constant Size ◽  
Generic Framework ◽  
Generic Construction ◽  
Key Policy ◽  
Predicate Encryption

Abstract Recently, Attrapadung (Eurocrypt 2014) proposed a generic framework for fully (adaptively) secure predicate encryption (PE) based on a new primitive, called pair encodings. The author shows that if the underlying pair encoding scheme is either perfectly secure or computationally (doubly-selectively) secure, then the PE scheme will be fully secure. Although the pair encodings were solely introduced for PE, we show that these can also be used to construct predicate signatures, a signature analogue of PE. More precisely, we propose a generic construction of predicate signature (PS) from pair encoding schemes. Our construction provides unconditional signer privacy, and unforgeability in the adaptive model. Thereafter, we instantiate many PS schemes with new results, e.g., the first practical PS schemes for regular languages, the first attribute-based signature (ABS) scheme with constant-size signatures in the adaptive model, unbounded ABS with large universes in key-policy flavor, etc.

Towards Symmetric Functional Encryption for Regular Languages with Predicate Privacy

2014 ◽  
pp. 266-275 ◽  
Author(s):  
Fu-Kuo Tseng ◽  
Rong-Jaye Chen ◽  
Bao-Shuh Paul Lin
Keyword(s):  
Regular Languages ◽  
Functional Encryption

Composite order bilinear pairing on elliptic curve for dual system encryption

2015 ◽  
Author(s):  
Fatin Nabila Abd Latiff ◽  
Wan Ainun Mior Othman
Keyword(s):  
Elliptic Curve ◽  
Bilinear Pairing ◽  
Dual System ◽  
Dual System Encryption

Direct constructions and proofs for CCA secure (LR)IBE with dual system encryption

2017 ◽  
Vol 60 (11) ◽  
Author(s):  
Yi Zhao ◽  
Bo Yang
Keyword(s):  
Dual System ◽  
Dual System Encryption
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