发明名称 |
Method and apparatus for protecting NTRU against a timing attack |
摘要 |
A method of decrypting a message encrypted using a truncated ring cryptosystem. The method comprises selecting a window parameter T determining a plurality of windows of a predetermined size, each window being shifted by an amount less than or equal to the window parameter T. A decryption candidate is determined for each possible window. Each decryption candidate is tested to determine whether it is a valid message. The result of the decryption is chosen to be a valid message found in the previous step or if no valid message is found it is indicated that the message could not be decrypted. By this method, a constant number of decryption candidates are determined for each decryption.
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申请公布号 |
US2005031122(A1) |
申请公布日期 |
2005.02.10 |
申请号 |
US20030734231 |
申请日期 |
2003.12.15 |
申请人 |
VANSTONE SCOTT A.;PROOS JOHN A.;STRUIK MARINUS |
发明人 |
VANSTONE SCOTT A.;PROOS JOHN A.;STRUIK MARINUS |
分类号 |
H04L9/00;H04L9/30;(IPC1-7):H04L9/00 |
主分类号 |
H04L9/00 |
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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