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Paper 2003/189

Cryptanalysis of publicly verifiable authenticated encryption

Zuhua Shao

Abstract

Ma and Chen proposed a new authenticated encryption scheme with public verifiability. This scheme requires less computational costs and communication overheads than the conventional signature-then-encryption approaches. In this letter, we show that the Ma-Chen scheme does not satisfy three security properties: unforgeability, confidentiality and non-repudiation.

Metadata
Available format(s)
PDF
Category
Public-key cryptography
Publication info
Published elsewhere. cryptanalysis
Contact author(s)
zhshao_98 @ yahoo com
History
2003-09-12: received
Short URL
https://ia.cr/2003/189
License
Creative Commons Attribution
CC BY
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