| 摘要 |
PROBLEM TO BE SOLVED: To provide a data transfer method and a signal processor for quickening a processing speed for executing a quantitative arithmetic operation to data, and transferring the data to an outside device. SOLUTION: An inside processor 20 controls a cipher generating circuit 24 and an encipherment arithmetic circuit 25 so that transfer data stored in a DRAM(dynamic random access memory) 14 can be enciphered, and transferred to a personal computer 15. The encipherment arithmetic circuit 25 enciphers the transfer data successively inputted from the DRAM 14 by using cipher data from the cipher generating circuit 24, and transfers the enciphered transfer data through an outside I/F circuit 23 to the personal computer 15. The enciphered transfer data transferred to the personal computer 15 are decoded by data read from an optical disk 13 in the personal computer 15 and used. |
