| 摘要 |
A computer file verifier for verifying computer files as authentic is provided. The computer file verifier is implemented on a multi-computer system including one or more peripheral computers (12), a central computer (10) including secured memory, and an interface network (16) interconnecting the computers. The peripheral computers (12) are used to create computer files (24). If a computer file (24) is to be later verified, a peripheral computer (12) generates a fingerprint of the computer file (24). The fingerprint is then stored in the secured memory of the central computer (10). To verify the content of the file, the peripheral computer (12) regenerates the fingerprint and the regenerated fingerprint is compared to the fingerprint stored on the central computer (10). If the fingerprints match, the content of the computer file is verified as unaltered. The date and time of creation and the author of the computer file (24) is preferably stored in the secured memory of the central computer (10) as well, so that this information can also be verified. |
