International Association for Cryptologic Research

International Association
for Cryptologic Research

IACR News item: 27 May 2013

Christoph Sorge
ePrint Report ePrint Report
Identity-based cryptography has attracted attention in the cryptographic research community in recent years. Despite the importance of cryptographic schemes for applications in business and law, the legal implications of identity-based cryptography have not yet been discussed. We investigate how identity-based signatures fit into the legal framework. We focus on the European Signature Directive, but also take the UNCITRAL Model Law on Electronic Signatures into account. In contrast to previous assumptions, identity-based signature schemes can, in principle, be used even for qualified electronic signatures, which can replace handwritten signatures in the member states of the European Union. We derive requirements to be taken into account in the development of future identity-based signature schemes.

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