| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce the number of key inputs to be required for acquisition of template information before starting authentication service to further reduce an input load and input time of a user in key stroke authentication. <P>SOLUTION: A sentence generator 1 generating a sentence for acquiring the template information in the key stroke authentication includes: storage means 12 for storing a word dictionary in which at least one word is set for every part of speech, and a plurality of sentence structure patterns constituted of a plurality of parts of speech; sentence structure selection means 11 for selecting a sentence structure pattern from the storage means 12; and word selection means 11 for selecting a word from the word dictionary for every part of speech constituting the selected sentence structure pattern to generate a sentence. Each word set for every part of speech in the word dictionary is classified according to an initial character of the word to be registered, the word selection means 11 counts each word selected from the word dictionary for every initial character of the word, and selects a word of the initial character with the least number of counts from the word dictionary. <P>COPYRIGHT: (C)2012,JPO&INPIT |
