| 发明名称 | Preventing data extraction by side-channel attack | ||
| 摘要 | A method for data transfer includes receiving a control signal triggering a transfer of a secret value into an element (24) of a circuit (20). In response to the control signal, a dummy value (42, 50) and the secret value are inserted in succession into the element of the circuit. | ||
| 申请公布号 | US9135453(B2) | 申请公布日期 | 2015.09.15 |
| 申请号 | US201214131396 | 申请日期 | 2012.08.27 |
| 申请人 | CISCO TECHNOLOGY INC. | 发明人 | Shen-Orr Chaim;Shlomovich Yonatan;Elbaum Reuven;Shkedy Zvi;Amarilio Lior;Shapiro Yigal;Bear Uri |
| 分类号 | G06F17/30;G06F21/60;G06F21/55;H04L9/00 | 主分类号 | G06F17/30 |
| 代理机构 | Hahn Loeser & Parks LLP | 代理人 | Hahn Loeser & Parks LLP |
| 主权项 | 1. A method for data transfer, comprising: receiving a control signal triggering a transfer of a secret value into an element of a circuit; in response to the control signal, inserting a deterministic non-constant dummy value and the secret value in succession into the element of the circuit; and asserting a data valid signal after inserting the secret value into the element, wherein the data valid signal is deasserted while the element holds the dummy value. | ||
| 地址 | San Jose CA US | ||