发明申请
WO02001343A1 COUNTERMEASURE METHODS IN AN ELECTRONIC COMPONENT USING A KOBLITZ ELLIPTIC CURVE PUBLIC KEY CRYPTOGRAPHIC ALGORITHM
审中-公开
基本信息:
- 专利标题： COUNTERMEASURE METHODS IN AN ELECTRONIC COMPONENT USING A KOBLITZ ELLIPTIC CURVE PUBLIC KEY CRYPTOGRAPHIC ALGORITHM
- 专利标题（英）：Countermeasure methods in an electronic component using a koblitz elliptic curve public key cryptographic algorithm
- 专利标题（中）：使用KOBLITZ ELLIPTIC曲线的电子元件中的相对测量方法公共密钥CRYPTOGRAPHIC算法
- 申请号：PCT/FR2001/001943 申请日：2001-06-20
- 公开(公告)号：WO02001343A1 公开(公告)日：2002-01-03
- 主分类号： G06F7/72
- IPC分类号： G06F7/72 ; G06F21/55 ; G06K19/073
摘要：
Cryptographic algorithms based on abnormal binary elliptic curves are public key algorithms having over RSA algorithms the advantage of less time calculation and smaller key size. It has been found that their application in a smart card type environment is vulnerable to DPA (Differential Power Analysis) attacks. The invention consists in the description of countermeasure methods to provide against such DPA attacks. Said countermeasure does not decrease performances and is easily used in a component such as a smart card.
摘要（中）：
基于异常二进制椭圆曲线的加密算法是具有超越RSA算法的公钥算法，具有较少的时间计算和较小的密钥大小的优点。 已经发现，它们在智能卡类型环境中的应用容易受DPA（差分功率分析）攻击的影响。 本发明在于描述针对这种DPA攻击的对策方法。 所述对策不降低性能，并且易于用于诸如智能卡的部件中。