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One of the few, albeit temporary, benefits of the COVID-19 pandemic was the dramatic reduction in vehicle traffic. As workers returned to the office and businesses resumed their normal operations, ....
A ring signature (RS) scheme enables a group member to sign messages on behalf of its group without revealing the definite signer identify, but this also leads to the abuse of anonymity by malicious signers, which can be prevented by traceable ring signatures (TRS). Up until that point, traceable ring signatures have been secure based on the difficult problem of number-theoretic (discrete logarithms or RSA), but since the advent of quantum computers, traditional traceable ring signatures may no longer be secure. Thus Feng proposed a lattice based TRS, which are resistant to attacks by quantum computers. However, that works did not tackle the certificate management problem. To close this gap, a quantum-resistant certificateless TRS scheme was proposed in the study. To the best of our knowledge, this is the first lattice based certificateless TRS. In detail, a specific TRS scheme was combined with the lattice-based certificateless signature technology to solve the certificate management ....
While ring signatures can provide unconditional anonymity to the signing user, they are vulnerable to malicious signers in certain scenarios, for example, in electronic voting, malicious users will vote multiple times to achieve their own goals, which is not deserved. Traceable ring signatures (TRS) are required to be able to deal with the abuse of anonymity by malicious signers. In addition to ensure the anonymity of honest users, TRS supports to revoke the anonymity of malicious signature users and plays an important role in scenarios such as e-voting, digital currency and anonymous offline coupon service systems. Most current TRS are based on the assumptions of traditional number theory and are insecure under the attacks of quantum computers. So in this paper we propose an identity-based traceable ring signature (IBTRS) based on the standard lattice, which solves the issue of certificate management. Our scheme uses an efficient zero-knowledge proof to replace the Stern protocol, wit ....
Once a rite of passage, the tradition of the summer job faded significantly by 2020: teen labor force participation experienced a long-term downward trend beginning in the late 1970s, then ....
As more and more transactions, registrations, and interactions have moved online, identity theft reports have increased sharply—from roughly 86,000 in 2001, to over 650,000 in 2019. Additionally, the high number ....