IDENTITY-BASED ENCRYPTION MTTHOD BASED ON LATTICES

摘要

A computing device is disclosed. The computing device includes at least one instruction (instruction) and a memory for storing identity information, and a processor for executing at least one instruction, wherein the processor randomly samples small elements and functions to process the stored identity information A message is generated using the master public key, sampled small elements, and the function processing output value calculated using a ring having a dimension (d) expressed as a power of 2 and an integer product of 3 or more. generate a ciphertext for