- 专利标题: Method and device for elliptic curve computations by low resource devices
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申请号: US16890801申请日: 2020-06-02
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公开(公告)号: US11502835B2公开(公告)日: 2022-11-15
- 发明人: Giulio Follero , Rosario Bosco
- 申请人: STMicroelectronics S.r.l.
- 申请人地址: IT Agrate Brianza
- 专利权人: STMicroelectronics S.r.l.
- 当前专利权人: STMicroelectronics S.r.l.
- 当前专利权人地址: IT Agrate Brianza
- 代理机构: Slater Matsil, LLP
- 主分类号: H04L9/30
- IPC分类号: H04L9/30 ; G06F7/72 ; G06F17/11
摘要:
The present disclosure relates to a method and device for performing an elliptic curve cryptography computation comprising: twisting, by a first device based on a first index of quadratic or higher order twist (d), a first point (P′KB) on a first elliptic curve over a further elliptic curve twisted with respect to the first elliptic curve to generate a twisted key (PKB); transmitting the twisted key (PKB) to a further device; receiving, from the further device, a return value (ShS) generated based on the twisted key (PKB); and twisting, by the first device based on the first index of quadratic or higher order twist (d), the return value (ShS) over the first elliptic curve to generate a result (ShS′) of the ECC computation.
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