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IJNSEC
2007

Vulnerabilities in the Adachi-Aoki-Komano-Ohta Micropayment Scheme

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Vulnerabilities in the Adachi-Aoki-Komano-Ohta Micropayment Scheme
Rivest and Shamir presented two simple micropayment schemes, “PayWord” and “MicroMint,” for making small purchases over the Internet [14]. Recently, Adachi et al. have pointed out that the PayWord scheme has two security problems, and proposed a new micropayment scheme to overcome these problems [1]. Nevertheless, we show that their protocol is still vulnerable to impersonation and replay attacks.
Minho Kim, Çetin Kaya Koç
Added 15 Dec 2010
Updated 15 Dec 2010
Type Journal
Year 2007
Where IJNSEC
Authors Minho Kim, Çetin Kaya Koç
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