发明名称 |
METHOD AND DEVICE FOR LOADING INPUT DATA INTO AN ALGORITHM DURING AUTHENTICATION |
摘要 |
A method for enhancing data security when chip cards are used for payment transactions and input data are loaded into an algorithm when performing an authentication. The security of the debit and credit data is enhanced by subdividing the data blocks and by switching an additional feedback on and off following the downstream counters at preselected clock pulse times. The method is applicable to all authentication processes in conjunction with chip cards. |
申请公布号 |
EP0909434(B1) |
申请公布日期 |
2001.10.24 |
申请号 |
EP19970925042 |
申请日期 |
1997.06.04 |
申请人 |
DEUTSCHE TELEKOM AG |
发明人 |
SCHAEFER-LORINSER, FRANK;SCHEERHORN, ALFRED |
分类号 |
G06K17/00;G06Q20/02;G06Q20/34;G06Q20/36;G06Q20/40;G06Q40/00;G07F7/08;G07F7/10;G09C1/00;H04L9/32;(IPC1-7):G07F7/10 |
主分类号 |
G06K17/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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