发明名称 |
Data encryption system and method |
摘要 |
A data encryption system implemented by running on a cache-equipped computer an encryption program including transformation tables each of which contains a predetermined number of entries. All or necessary ones of the transformation tables are loaded into the cache memory before encryption/decryption process. This causes encryption/decryption time to be made substantially equal independently of the number of operation entries for the transformation table. It is very difficult to extract plain texts used to determine a key differential, resulting in difficulties in cryptanalysis. |
申请公布号 |
US8306227(B2) |
申请公布日期 |
2012.11.06 |
申请号 |
US20080189847 |
申请日期 |
2008.08.12 |
申请人 |
TSUNOO YUKIYASU;NEC CORPORATION |
发明人 |
TSUNOO YUKIYASU |
分类号 |
G06F21/00;H04L9/28;G06F12/08;G06F21/06;G06F21/24;G09C1/00;H04L9/06;H04L9/10;H04L9/18 |
主分类号 |
G06F21/00 |
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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