| 摘要 |
An administrator can gain access to a financial transaction data store 16 for inspection and amendment of the data. The "secure application module" 15 cooperates with the smart card reader 14 to perform verification of the card by a challenge-response technique using the cryptographic keys in the unit 15 and in the smart card 4. The administrator is validated by use of a fingerprint recognizer 12, with reference fingerprint data derived from the internal file 13 or the smart card 4. Alternatively, the iris, retina, face, voice or hand may be checked, or a password may be used. A user who is not an administrator can add transaction data to the data store 16, together with their electronic signature, but cannot amend data in the store. The input data is also recorded on a log file 17 after encryption. The store 16 may be of MO, CD-R, or DVD type and may be removable. The invention reduces tax evasion and fraud.
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