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Anonymous authentication is very useful to protect the users’ identity privacy in distributed environment, such as in cloud computing. With the anonymous property, attribute-based signature (ABS) provides a cryptographic tool to construct a secure authentication scheme. In an attribute-based signature scheme, a signer owning a set of attributes is able to sign anonymously message with regarding to...
Garg, Gentry and Halevi (GGH) described the first candidate multilinear maps using ideal lattices. However, Hu and Jia presented an efficient attack on the GGH map, which breaks GGH-based MPKE. We describe an improvement of GGH map. The security of our construction depends upon new hardness assumption.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.