| 摘要 |
The data validation system (10) comprises a source data encoder (100) and a retrieved data validator (200), both operating under the control of a shared key. The source data encoder (100) is used to produce a validation code that is associated with the source document. The retrieved data validator (200) checks, with the aid of the validation code, if the retrieved document is valid. The source data encoder (100) includes a mapping module (120) that has an input (122) for receiving a source document to be encoded and another input (124) for receiving a key. A validation code is output from the mapping module (120) via an output (126).
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