System-on-chip capable of changing signature verification algorithm and operating method of system-on-chip

Abstract

A system-on-chip includes a nonvolatile memory configured to load a first image received from external storage and a first signature verification algorithm; at least one processor configured to control the nonvolatile memory such that first verifications are performed on the first image; a volatile memory; and a one-time programmable (OTP) memory configured to program a programmed hash value of a second signature verification algorithm different from the first signature verification algorithm. The at least one processor further is configured to: load a second image received from the external storage to the volatile memory, the second image being different from the first image; perform a second verification on the second image based on the programmed hash value; based on the second verification succeeding, execute the second signature verification algorithm corresponding to the version information; and perform the first verifications by applying the second signature verification algorithm to the first image.