发明名称 |
Data encryption apparatus using odd number of shift-rotations and method |
摘要 |
A data converting unit includes a key adding unit for performing an arithmetic addition modulo 232 for input data F and subkey data Ki and outputting the outcome as data G, and a data substituting unit for performing an exclusive-OR operation for corresponding bits in data Rot7(G) obtained by shift-rotating the data G by 7 bits toward higher-order bit positions, data Rot1(G) obtained by shift-rotating the data G by 1 bit toward higher-order bit positions, and the data G itself.
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申请公布号 |
US6304657(B1) |
申请公布日期 |
2001.10.16 |
申请号 |
US19990474531 |
申请日期 |
1999.12.29 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
YOKOTA KAORU;OHMORI MOTOJI;MIYAJI ATSUKO |
分类号 |
H04L9/06;(IPC1-7):H04L9/28 |
主分类号 |
H04L9/06 |
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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