| 摘要 |
PROBLEM TO BE SOLVED: To provide an encryption communication system with improved security.SOLUTION: An encryption communication system comprises semiconductor devices 70, 80, and 90. The semiconductor device 90 is configured in such a manner that correction data CD (1, a) for correcting a unique code UC (a) can be supplied to the semiconductor device 70 and correction data CD (1, b) for correcting a unique code UC (b) can be supplied to the semiconductor device 80. The semiconductor device 70 comprises a common key generation unit 73 which generates a common key CK (1) using a unique code UC (a) which is specific to the semiconductor device 70 and includes a random error and the correction data CD (1, a) supplied from the semiconductor device 90. The semiconductor device 80 comprises a common key generation unit 83 which generates a common key CK (1) using a unique code UC (b) which is specific to the semiconductor device 80 and includes a random error and the correction data CD (1, b) supplied from the semiconductor device 90. |
