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Attribute-based encryption (ABE) has been considered as a promising cryptographic primitive for realising information security and flexible access control. However, the characteristic of attributes is treated as the identical level in most proposed schemes. Lattice-based cryptography has been attracted much attention because of that it can resist to quantum cryptanalysis. In this study, lattice-based...
In the setting of secret sharing, a group of parties wish to run a protocol for recovering the secret when they input their shares. The security requirement include privacy, correctness and others. One desirable property is fairness, which guarantees that if either party gets the secret, then the other party does too. However, basic secret sharing schemes, verifiable secret sharing schemes and publicly...
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