Preventing digital forgery

A system for preventing digital forgery, the system comprising:

• a processor;
• and memory configured to store one or more sequences of instructions, which when executed by the processor, cause the processor to carry out the steps of:
• maintaining a plurality of security templates comprising first and second security templates, the first security template specifying time and location stamp authentication for a file, and contextual security conditions that must be met before the file can be accessed, and
• the second security template specifying the time and location stamp authentication, but not the contextual security conditions;
• applying one of the first or second security templates to a particular file;
• when the second security template is applied to the particular file, adding, by a GPS-crypto device, a time and location stamp to the particular file;
• signing, using a private key associated with the GPS-crypto device, the particular file to generate an authentication signature based on the time and location stamp;
• and
• adding the authentication signature to the particular file to allow a recipient to verify the time and location stamp of the particular file using a public key corresponding to the private key.

A computer program product, comprising a non-transitory computer-readable medium having a computer-readable program code embodied therein, the computer-readable program code adapted to be executed by one or more processors to implement a method for preventing digital forgery, the method comprising:

• maintaining a plurality of security templates comprising first and second security templates, the first security template specifying time and location stamp authentication for a file, and contextual security conditions that must be met before the file can be accessed, and
• the second security template specifying the time and location stamp authentication, but not the contextual security conditions;
• applying one of the first or second security templates to a particular file;
• when the second security template is applied to the particular file, adding, by a GPS-crypto device, a time and location stamp to the particular file;
• signing, using a private key associated with the GPS-crypto device, the particular file to generate an authentication signature based on the time and location stamp;
• and
• adding the authentication signature to the particular file to allow a recipient to verify the time and location stamp of the particular file using a public key corresponding to the private key.