Assia Ben Shil

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Digital timestamping is a cryptographic technique allowing affixing a reliable date to a digital document. The security of most existing timestamping systems is based on the security of the used cryptographic techniques as hash functions. However, a hash function has a limited lifetime. In this context, we provide a non-interactive timestamp-ing scheme in(More)
A Publicly Verifiable Secret Sharing (PVSS) scheme allows anyone to verify the validity of the shares computed and distributed by a dealer. The idea of PVSS was introduced by Stadler in [18] where he presented a PVSS scheme based on Discrete Logarithm. Later, several PVSS schemes were proposed. In [2], Behnad and Eghlidos present an interesting PVSS scheme(More)
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