Abstract
This paper proposes FlexToken, a new copy prevention scheme for digital rights such as tickets or coupons, which are circulated as pieces of paper in the real world. The important feature of this scheme is that digital rights are represented using two separate types of information: the contents and the token of the rights. The token represents the “genuineness” of the contents and distinguishes the genuine digital rights from copies. A token is stored and circulated using tamper-proof devices such as smartcards while the contents can be held in any storage medium. This approach decreases the amount of memory required of the tamper-proof devices. Furthermore, circulating the identity of the right issuer and accredited information, which specifies the tamper-proof devices trusted by the issuer, along with a token makes it possible to protect any type of digital right, regardless of the issuer.
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© 2000 IFIP International Federation for Information Processing
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Terada, M., Kuno, H., Hanadate, M., Fujimura, K. (2000). Copy Prevention Scheme for Rights Trading Infrastructure. In: Domingo-Ferrer, J., Chan, D., Watson, A. (eds) Smart Card Research and Advanced Applications. IFIP — The International Federation for Information Processing, vol 52. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-35528-3_4
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DOI: https://doi.org/10.1007/978-0-387-35528-3_4
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