Space-Efficient Key-Policy Attribute-Based Encryption from Lattices and Two-Dimensional Attributes

<div>The storage overhead comparing between our scheme and related lattice-based KP-ABE schemes. (a) <i>pp</i> size. (b) <i>msk</i> size. (c) <i>sk</i><sub><i>u</i></sub> size. (d) Ciphertext size.</div>

Security and Communication Networks

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Figure 1

Figure 1: Space-Efficient Key-Policy Attribute-Based Encryption from Lattices and Two-Dimensional Attributes 