发明申请
- 专利标题: Leak-resistant cryptographic payment smartcard
- 专利标题(中): 防漏密码支付智能卡
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申请号: US11981495申请日: 2007-10-30
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公开(公告)号: US20080104400A1公开(公告)日: 2008-05-01
- 发明人: Paul Kocher , Joshua Jaffe
- 申请人: Paul Kocher , Joshua Jaffe
- 主分类号: H04L9/30
- IPC分类号: H04L9/30 ; H04L9/32
摘要:
We disclose methods and apparatuses for securing cryptographic devices against attacks involving external monitoring and analysis. A “self-healing” property is introduced, enabling security to be continually re-established following partial compromises. In addition to producing useful cryptographic results, a typical leak-resistant cryptographic operation modifies or updates secret key material in a manner designed to render useless any information about the secrets that may have previously leaked from the system. Exemplary leak-proof and leak-resistant implementations are shown for symmetric authentication, certified Diffie-Hellman (when either one or both users have certificates), RSA, ElGamal public key decryption.
公开/授权文献
- US07792287B2 Leak-resistant cryptographic payment smartcard 公开/授权日:2010-09-07