发明名称 |
One-way function generation method, one-way function value generation device, proving device, authentication method, and authentication device |
摘要 |
Without the need to store and manage a private unique value of a hash function for each token, and without the fear of organizational private information of a center being revealed, a hash function is provided to a token. A unique value input unit is supplied with a unique value d, which is a parameter required to generate a hash function X. A message input unit is supplied with a message M from which to find a hash value. A function generation unique value memory unit 3 holds a function generation unique value s, which is a parameter required to generate a value generation unique value. A value generation unique value calculation unit generates a value generation unique value u from the function generation unique value s and the unique value d. A hash value calculation unit generates a hash value X(M) by applying a hash function H to the value generation unique value u and the message M. A hash value output unit outputs the hash value X(M) generated by the hash value calculation unit.
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申请公布号 |
US7000110(B1) |
申请公布日期 |
2006.02.14 |
申请号 |
US20000588547 |
申请日期 |
2000.06.06 |
申请人 |
FUJI XEROX CO., LTD. |
发明人 |
TERAO TARO |
分类号 |
G09C1/00;H04L9/00;G06F12/14;G06F21/06;G06F21/24;G06K19/07;G06K19/10;H04L9/32 |
主分类号 |
G09C1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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