首页>
外国专利>
Secret information processing device and memory for storing secret information processing program
Secret information processing device and memory for storing secret information processing program
展开▼
机译:秘密信息处理设备和用于存储秘密信息处理程序的存储器
展开▼
页面导航
摘要
著录项
相似文献
摘要
To provide a secure cryptographic device such as an IC card which can endure TA (Timing Attack), DPA (Differential Power Analysis), SPA (Simple Power Analysis), or the like as an attaching method of presuming secret information held therein, when the secret information held in the card or another information which is used in the secret information or an arithmetic operation using such secret information when such an arithmetic operation is performed is shown by a plurality of expressing methods and the arithmetic operation is performed, thereby making an arithmetic operation processing method different each time the arithmetic operation is performed and making each of an arithmetic operation time, an intensity of a generated electromagnetic wave, and a current consumption different. IMAGE
展开▼