Patent ID: 7093131

Claim:
An information authenticating apparatus authenticating data by the use of an authenticating station which performs digital signing, comprising: data input means for entering data; authenticating information adding means for adding authenticating information for authenticating input of the data by the use of said data input means to the data entered by said data input means; and transmitting means for transmitting the data containing the authenticating information by said authenticating information adding means to said authenticating station for further authentication of the data, wherein the authenticating station is physically separate from the authenticating apparatus and is connected to the authenticating apparatus only when authenticating data, wherein said authenticating information adding means has environmental condition measuring means for measuring a plurality of different surrounding environmental conditions, generates environmental condition information for specifying the plurality of different environmental conditions at the point in time when the data was entered by said data input means on the basis of the plurality of different environmental conditions measured by said environmental condition measuring means, and adds the generated environmental condition information as authenticating information.