Ciphertext-Policy ABE for ${\mathsf{NC}}^1$ Circuits with Constant-Size Ciphertexts from Succinct LWE

Jiaqi Liu, Yuanyi Zhang, Fang-Wei Fu

We construct a lattice-based ciphertext-policy attribute-based encryption (CP-ABE) scheme for ${\mathsf{NC}}^1$ access policies with constant-size ciphertexts. Let $\lambda$ be the securit…