| 摘要 |
PROBLEM TO BE SOLVED: To evaluate properly, whether or not an execution file which can execute to obtain an output value with respect to an input value is a predetermined hash function, and suppress labor cost for the evaluation test.SOLUTION: A hash evaluation server 30 performs hash evaluation for evaluating, whether or not, an execution file which can execute to obtain an output value with respect to an input key, is a predetermined hash function. The evaluation server 30 comprises: an information setting storage part 30c for storing a predetermined number of evaluation patterns in each of which, an evaluation procedure of an evaluation test of the execution file and an acceptance standard are different each other; an input key creation part 30d for creating the input key adapted for each evaluation pattern; a file execution part 30e for creating an output value according to the set execution file with respect to the input key; and a hash evaluation part 30g for, performing an evaluation test of the output value, and when the result of the test satisfies the acceptance standard, evaluating that the evaluation file is the predetermined hash function.SELECTED DRAWING: Figure 1 |
