public-keys/signatures
Sequential Aggregate Signatures with Short Public Keys: Design, Analysis and Implementation Studies
... form signatures framework ...the public key is proportional to the security parameter (for a security of 2 80 they need 160 elements or about 80 elements in a larger group); they left as an open question to ...
31
Signatures with Flexible Public Key: Introducing Equivalence Classes for Public Keys
... digital signatures, the adversary must return a signature valid under the public key given to him by the ...a public key that is in some relation R to the public key chosen by the ...SPS-EQ ...
45
Short Signatures With Short Public Keys From Homomorphic Trapdoor Functions
... for some cyclotomic polynomial f of degree n, the modulus q ≥ β √ nω( √ log n), and k = O(log q). Q is the number of signatures queries made by the adversary and is its success probability. For those schemes using ...
18
Programmable Hash Functions go Private:Constructions and Applications to (Homomorphic) Signatures with Shorter Public Keys
... a public key that is at least linear in the size N of the signed ...large public key can be, in principle, amortized since the key can be re-used for multiple ...linear public key might be simply ...
46
Floppy-Sized Group Signatures from Lattices
... Making use of the advances in lattice-based signature schemes, a number of group signature schemes were proposed following the general construction ap- proach we have outlined earlier [24, 26, 27, 28, 29, 40]. These ...
19
Generating and Validating DSA Private Keys from Online Face Images for Digital Signatures
... the public key, and storing it in the database, and signing any digital ...the public key and storing it in the database, it is important to ensure that the generated private key does not conflict with any ...
6
Expiration and Revocation of Keys for Attribute-based Signatures (Full Version)
... and keys valid for a fixed time period, or could be an external party that compromised the user’s attributes and ...attribute-based signatures, the attribute-issuing au- thorities are considered malicious ...
22
Synchronized Aggregate Signatures from the RSA Assumption
... In this section we show how a more intricate key storage technique can give us much better results with a scheme where the number of exponentiations and prime searches is ≈ lg(T ) per signing operation and where we store ...
35
Towards Practical Lattice-Based One-Time Linkable Ring Signatures
... Ring signatures, as introduced by Rivest, Shamir, and Tau- man (Asiacrypt ’01), allow to generate a signature for a message on be- half of an ad-hoc set of ...the public keys must be known and these ...
24
Improved Short Lattice Signatures in the Standard Model
... short signatures (consisting of a single lattice vector), and relatively short public keys (consisting of O(log n) ...short signatures, due to Boyen (PKC 2010) and Micciancio and Peikert ...
20
Proficient and Reliable Anonymous Routing Protocol (RARP) in Mobile Ad Hoc Network Environment using Digital Signatures
... and public keys for each user in the network ...group public key and ID-based private key from the group ...session keys with neighbors who anonymously discover routes and anonymously forward ...
6
A look at the PGP ecosystem through the key server data
... are public directories where users can publish their public ...means keys can never be deleted from key servers, they can just be marked invalid ...that public keys can sign other ...
5
SPHINCS: practical stateless hash-based signatures
... the public keys of its two child ...OTS public key of the root becomes the overall public ...OTS public keys in the path from leaf h to the root, all the public ...
30
Verifiably Encrypted Signatures with Short Keys based on the Decisional Linear Problem and Obfuscation for Encrypted VES
... signing keys of the Waters dual signature scheme consist of multiple group elements and the signing algorithm computes exponentiation of the signing keys with randomness in contrast to Waters’ signature ...
21
Novel approach for Secure Cloud Storage with Similar word Search O. Naga Kumari 1, Samidi Sindhuja2 , S.Haripriya 2, G. Shireesh Goud2
... Searchable encryption is of increasing interest for protecting the data privacy in secure searchable cloud storage. In this paper, we investigate the security of a well-known cryptographic primitive, namely, ...
5
ch3.pdf
... • Digital certificate provides the subject’s (True Party’s) name and public key. • Don’t confuse digital signatures and the digital certificates used to test digital signatures[r] ...
65
A Secure Mobile Banking Scheme based on Certificateless Cryptography in the Standard Security Model
... [1] S.S. Al-Riyami and K.G. Paterson. Certificateless public key cryptography. In C.S. Laih, editor, Asiacrypt 2003, Lecture Notes in Computer Science, pages 452–473, 2003. Full version available at Cryptology ...
6
Public Auditing for Data Stored on Cloud with Decentralize Access Control
... utilizing public keys of authenticated users, so that just they can decrypt information utilizing their secret ...secret keys by a key appropriation focus ...in public health records ...
6
Key-Aggregate Cryptosystem for Confidential Data Sharing in Public Cloud
... But in general cases, it is difficult. Asshown in Figure 3(b), if Alice shares her demomusic at work (“work”!“casual”!“demo” and“work”!“confidential”!“demo”) with a colleaguewho also has the rights to see some of her ...
8
Traitor-Tracing from LWE Made Simple and Attribute-Based
... if, for the t output by the trace algorithm in step 4, the adversary never made a skGen query of the form (f, t) where f (x) = 1. We require that Pr[GoodDecoder ∧ BadTrace] ≤ negl(λ). We make several remarks about the ...
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