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As a promising cryptographic primitive, attributebased encryption (ABE) is adopted to protect outsourced data. However, there are some issues in existing attribute-based encryption schemes. First, the attribute authority manages attributes of users, so it may cause the leakage of users' privacy information. Second, because the access structures are directed along with the ciphertexts and may violate...
In this paper, an infinite dimensional Lie algebra is studied and the infinite dimensional of Lie algebras appear in the fields of conformal theory, mathematical physics, statistic mechanics and Hamilton operator. The infinite dimensional Lie is popularized of Virasoro-like Lie algebra. Isomorphisms, morphisms, ideal of the infinite dimensional Lie algebra are studied.
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