发明名称 |
FORMAT-PRESERVING ENCRYPTION VIA ROTATING BLOCK ENCRYPTION |
摘要 |
Methods and systems are described for format-preserving encryption. Format-preserving encryption on an entire format F may be achieved by performing format-preserving encryption on one or more subsets of F and then applying one or more permutation rounds in such a way that all elements of F enter a subset to be encrypted. A predetermined number of encryption rounds and a predetermined number of permutation rounds may be interleaved until all elements are thoroughly mixed. The resultant output data may be saved in a database in the same format as the original input data, meet all constraints of the database, and pass all validity checks applied by software supporting the database. |
申请公布号 |
WO2011143257(A1) |
申请公布日期 |
2011.11.17 |
申请号 |
WO2011US35976 |
申请日期 |
2011.05.10 |
申请人 |
COMPUTER ASSOCIATES THINK, INC.;HOOVER, DOUGLAS, NEIL |
发明人 |
HOOVER, DOUGLAS, NEIL |
分类号 |
H04K1/00 |
主分类号 |
H04K1/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|