With the rapid development of quantum computing and quantum information technology, the universal quantum computer will\nemerge in the near decades with a very high probability and it could break most of the current public key cryptosystems totally.\nDue to the ability of withstanding the universal quantum computerâ??s attack, the lattice-based cryptosystems have received lots of\nattention from both industry and academia. In this paper, we propose an identity-based blind signature scheme using lattice. We\nalso prove that the proposed scheme is provably secure in the random oracle model. The performance analysis shows that the\nproposed scheme has less mean value of sampling times and smaller signature size than previous schemes. Thus, the proposed\nscheme is more suitable for practical applications.
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