| 摘要 |
PROBLEM TO BE SOLVED: To embed a cryptogram n a normal sentence without damaging the original contents by constituting the cryptogram with similar characters that the inscriptions on the face are the same as or similar to and the character codes are different from specified characters and the specified characters. SOLUTION: Character codes having several similar inscriptions on the face exist in information processing character codes constituting a regular sentence. For instance, characters such as an English (A) and a Greek (A) (alpha), one full-sized space and two half-sized space in which the character codes are different but the inscriptions on the face are the same of similar exist. A calculating device 101 embeds a cryptogram 104 in an normal sentence 103 by using a cipher embedding rule stored in a storage device 102 to prepare a normal sentence 105 with a cryptogram. That is, the calculating device 101 specifies the specified characters and the similar characters existing in the normal sentence 103. Then, the device 11 constitutes the cryptogram by successively converting the specified characters and the similar characters successively existing to the specified character or the similar character corresponding to the cryptogram 104. |
