On the Security of MTA-OTIBASs (Multiple-TA One-Time Identity-Based Aggregate Signatures)

On the Security of MTA-OTIBASs (Multiple-TA One-Time Identity-Based Aggregate Signatures)

In [3] the authors proposed a new aggregate signature scheme referred to as multiple-TA (trusted authority) one-time identity-based aggregate signature (MTA-OTIBAS). Further, they gave a concrete MTA-OTIBAS scheme. We recall here the definition of MTA-OTIBAS and the concrete proposed scheme. Then we...

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Hauptverfasser: Zhang, Lei, Wu, Qianhong, Domingo-Ferrer, Josep, Qin, Bo, Hu, Chuanyan
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Wu, Qianhong
Domingo-Ferrer, Josep
Qin, Bo
Hu, Chuanyan
description In [3] the authors proposed a new aggregate signature scheme referred to as multiple-TA (trusted authority) one-time identity-based aggregate signature (MTA-OTIBAS). Further, they gave a concrete MTA-OTIBAS scheme. We recall here the definition of MTA-OTIBAS and the concrete proposed scheme. Then we prove that our MTA-OTIBAS concrete scheme is existentially unforgeable against adaptively chosen-message attacks in the random oracle model under the co-CDH problem assumption.
doi_str_mv 10.48550/arxiv.1506.08548
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title On the Security of MTA-OTIBASs (Multiple-TA One-Time Identity-Based Aggregate Signatures)
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