| 摘要 |
PROBLEM TO BE SOLVED: To prevent a data element moving via a bus from being identified or to hardly make the data element identified. SOLUTION: In the electronic component provided with a 2-way bus DATA- BUS through which the data element is moved at a speed of a clock signal PHI between peripheral devices P1, P2, P3 and a central processing unit CPU, each of the central processing unit CPU and at least one peripheral device P1 is provided with a data encryption/decoding cell Kcell employing respectively the same private key KEY, a random signal Kin synchronously with the clock signal PHI is uniquely outputted at each clock cycle of each cell as the current value of the private key and applied to the respective cells through a unidirectional transmission line. |
