| 摘要 |
A security apparatus for a nonvolatile memory includes a nonvolatile memory, a working buffer temporality storing a predetermined unit output from the nonvolatile memory, a checksum buffer storing a checksum of at least one unit output from the nonvolatile memory, and a read verification engine controlling storing of a unit output from the nonvolatile memory corresponding to a read signal that is externally input, in the working buffer. The read verification engine calculates a checksum of the unit corresponding to the read signal stored in the working buffer and compares a calculated checksum with a checksum of the unit corresponding to the read signal stored in the checksum buffer.
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