发明名称 |
DATA CONVERSION DEVICE, DATA CONVERSION METHOD, AND PROGRAM |
摘要 |
<p>There is realized a data conversion device that performs generation of a hash value with improved analysis resistance and a high degree of safety. There are provided a stirring processing section performing a data stirring process on input data; and a compression processing section performing a data compression process on input data including data segments which are divisions of message data, the message data being a target of a data conversion. Part of multi-stage compression subsections is configured to perform a data compression process based on both of output of the stirring processing section and the data segments in the message data. There is provided such a configuration that the stirring process is executed at least on fixed timing of a compression processing round of plural rounds and thus, there is realized a data conversion device that performs generation of a hash value with improved analysis resistance and a high degree of safety.</p> |
申请公布号 |
EP2328136(A1) |
申请公布日期 |
2011.06.01 |
申请号 |
EP20090809898 |
申请日期 |
2009.08.25 |
申请人 |
SONY CORPORATION |
发明人 |
SHIRAI TAIZO;SHIBUTANI KYOJI;MORIAI SHIHO;AKISHITA TORU;IWATA TETSU |
分类号 |
H04L9/06 |
主分类号 |
H04L9/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|