Patent ID: 9245153
Filing Date: 2016-01-26
CPC Classification: G06F,G09C,H04L

Claim Text:
1. A semiconductor device comprising: a unique code generating circuit which includes a static random access memory (SRAM) which generates a plurality of unique codes and which outputs one unique code from the plurality of unique codes, each said unique code being generated using an initial value at time of start of the static random access memory; a unique code corresponding information generating circuit which generates unique code corresponding information from said one unique code; a memory region which has a plurality of storing regions each of which is assigned to a predetermined address, wherein specific information associated with each predetermined address is obtained by encrypting confidential information with the plurality of unique codes which are also stored in the plurality of storing regions, respectively, and whose assigned addresses are indicated by the unique code corresponding information; and a decrypting circuit which decrypts, with said one unique code, the specific information which is read from the one storing region by using the unique code corresponding information to generate the confidential information.