[PDF] Top 20 More Efficient (Almost) Tightly Secure Structure-Preserving Signatures
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More Efficient (Almost) Tightly Secure Structure-Preserving Signatures
... a tightly secure MAC. Our tightly secure MAC will have to be structure- preserving, so the MAC used in [14] cannot be employed in our ...recent tightly secure key ... See full document
32
Improved (Almost) Tightly-Secure Simulation-Sound QA-NIZK with Applications
... of structure-preserving USS-QA-NIZK from Section ...as signatures, the USS-QA-NIZK can be considered as a signature scheme for message space consisting of no-instances, and the notion of unbounded ... See full document
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Concise Multi-Challenge CCA-Secure Encryption and Signatures with Almost Tight Security
... new efficient public-key encryption scheme with almost tight chosen-ciphertext (IND-CCA) security in the multi-user, multi-challenge setting ...with almost tight security. In turn, this yields the ... See full document
31
Algebraic partitioning: Fully compact and (almost) tightly secure cryptography
... Tightly secure encryption and signature schemes. The construction of tightly secure crypto- graphic schemes appears to be a nontrivial ...[3], tightly secure PKE schemes have ... See full document
24
Tightly-Secure Authenticated Key Exchange
... the tightly secure (without corruptions) signature scheme from [HJ12a, ADK + 13] and the Groth-Sahai non-interactive proof system [GS08] will be suitable DLIN-based building ...blocks. Efficient ... See full document
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Improved (Almost) Tightly-Secure Structure-Preserving Signatures
... the signatures by almost 40%, and reduce the number of pairing-product equations in the verifier from fifteen to ...the signatures these optimizations are further amplified as prov- ing ... See full document
30
Tightly Secure Signatures and Public-Key Encryption
... Some technical details. Our signature scheme is tree-based and inspired by the scheme of Boneh, Mironov, and Shoup [13]. However, their scheme is not structure-preserving, as it uses the hash of group ... See full document
35
Structure-Preserving Signatures on Equivalence Classes and Constant-Size Anonymous Credentials
... + signatures [BBS04, ASM06], which cover a broad class of ABC schemes from randomizable signature schemes with efficient proofs of ...provable secure version [BL13]) for the sake of completeness, ... See full document
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Lower Bounds on Structure-Preserving Signatures for Bilateral Messages
... We stress that, unlike the case of the knowledge of exponent assumptions [14, 26, 8] that assumes the presence of E for any malicious R, here we try to capture the limitation of current technology in building reduction ... See full document
21
Fully Structure-Preserving Signatures and Shrinking Commitments
... of efficient instantiations lead us to our second contribution: a shrinking structure- preserving trapdoor commitment scheme ...construct secure signature schemes that achieve existential ... See full document
29
Weakly Secure Equivalence-Class Signatures from Standard Assumptions
... Abstract. Structure-preserving signatures on equivalence classes, or equivalence-class signatures for short (EQS), are signature schemes de- fined over bilinear groups whose messages are ... See full document
31
Structure-Preserving Signatures from Standard Assumptions, Revisited
... from structure-preserving signatures is that we can obtain efficient protocols that are secure under standard cryptographic assumptions without the use of random ...build ... See full document
26
Structure-Preserving Signatures from Type II Pairings
... 3-element signatures cannot be proved secure under a non-interactive assumption using black-box reductions, so strong assumptions are needed to get optimal efficiency in the Type III ...optimal ... See full document
16
Short structure preserving signatures
... an efficient instantiation of the notion and hence an efficient instantiation of DAA (without relying on random oracles), the efficient in- stantiation of Bernhard et ...Ghadafi’s ... See full document
21
Tightly-Secure Signatures from Chameleon Hash Functions
... obtaining signatures with a tight security reduction from standard hardness ...a more efficient flat- tree ...first tightly secure signature scheme from the SIS assumption and several ... See full document
22
Further Lower Bounds for Structure-Preserving Signatures in Asymmetric Bilinear Groups
... that signatures of schemes over Type-3 bilinear groups must contain at least 3 elements, which must include elements from both source groups, and require at least 2 PPEs for ...unilateral signatures, ... See full document
19
Constant-Size Structure-Preserving Signatures: Generic Constructions and Simple Assumptions
... presents efficient structure-preserving signature schemes based on assumptions as simple as ...fully secure signature schemes from weaker building blocks such as variations of one-time ... See full document
32
Efficient Fully Structure-Preserving Signatures for Large Messages
... Proof. Perfect correctness, perfect randomizability and structure-preservation follows by inspection. What remains now is to prove that the signature scheme is C-EUF-CMA secure in the generic group model. ... See full document
22
Tightly-Secure Signatures From Lossy Identification Schemes
... is tightly related to the security of the RSA ...In more recent work, Goh and Jarecki [GJ03] and Katz and Wang [KW03,GJKW07] constructed digital signatures with tight security reductions based on the ... See full document
24
Tight reduction for generic construction of certificateless signature and its instantiation from DDH assumption
... an efficient attacker on the scheme into an algorithm solving some assumed-to-be-hard computational ...is tightly-security. If the cryptographic scheme is tightly-secure, we are easy to decide ... See full document
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