Cryptology ePrint Archive: Report 2020/1537

Comments on “ Multi Recipient Aggregate Signcryption Scheme Based on Elliptic Curve”

Nizamud Din and Abdul Waheed and Nasir Saeed

Abstract: Aggregate signcryption combines the functionalities of aggregate signature and encryption. Very recently, Zia & Ali [1] (Wireless Personal Communications, proposed an elliptic curve cryptography (ECC) based multi-recipient aggregate signcryption scheme. The authors claimed that their scheme is correct, efficient, and secure against known attacks. However, by this comment, we show that their scheme is incorrect and the receiver(s) is unable to unsigncrypt the message.

Category / Keywords: public-key cryptography / Aggregate signature, Signcryption, Multicasting, Data authentication

Date: received 9 Dec 2020, withdrawn 15 Dec 2020

Contact author: nizam at uoch edu pk

Available format(s): (-- withdrawn --)

Version: 20201215:135428 (All versions of this report)

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