发明名称 |
TAMPER-RESISTANT ELLIPTICAL CURVE ENCRYPTION USING SECRET KEY |
摘要 |
An encryption device (FIG. 15) performs elliptic curve encryption using a secret key. The encryption device includes: operation means (ECDBL, ECADD) for performing scalar multiplication of a point on an elliptic curve; storage (TÄ0Ü-TÄ2Ü) having a plurality of data storing areas; and means (SEL) for determining, in accordance with a bit sequence of a given value (d) and with a random value (RNG), an address of one of the plurality of data storage areas that is to be coupled to the operation means for each scalar multiplication. <IMAGE>
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申请公布号 |
EP1548687(A1) |
申请公布日期 |
2005.06.29 |
申请号 |
EP20020786146 |
申请日期 |
2002.12.18 |
申请人 |
FUJITSU LIMITED |
发明人 |
TAKENAKA, MASAHIKO,;IZU, TETSUYA,;ITOH, KOUICHI,;TORII, NAOYA, |
分类号 |
G06F7/72;G09C1/00;H04K1/00;H04L9/30;(IPC1-7):G09C1/00 |
主分类号 |
G06F7/72 |
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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