发明名称 |
System för personlig identifiering |
摘要 |
<p>A method and apparatus for verifying that the bearer of a card (e.g., credit card, bank card, etc.) is authorized to use the card. The card bears machine-readable indicia of an account number (PAN) and the bearer of the card has memorized a personal identification number (PIN). There is associated with the PAN a check number (PCN) which is derived by (1) generating a first cipher Y1 by encrypting the PAN using the PIN in combination with a secret security number as a key, the bits of which address a data encryption process; (2) generating a second cipher by decrypting the first cipher using the secret security number as a key so that the decryption process is the reverse of the encryption process; and (3) storing the second cipher as the check number PCN in a machine-accessible location, which may be in a separate memory or recorded on the card itself. Verification is accomplished by (a) sensing the PAN from the machine-readable indicia on the card; (b) enciphering the PAN with respect to the data encryption process under control of a key which is a combination (such as by addition) of the PIN and the secret security number to thereby produce a third cipher; (c) sensing the PCN from the machine-accessible location; (d) enciphering the PCN with respect to the data encryption process under control of a key which is the secret security number to thereby produce a fourth cipher; and (e) accepting the card as valid provided the third and fourth ciphers bear a predetermined relationship to each other, such as equality.</p> |
申请公布号 |
FI73842(C) |
申请公布日期 |
1987.11.09 |
申请号 |
FI19790000170 |
申请日期 |
1979.01.18 |
申请人 |
ICL SYSTEMS AB, |
发明人 |
FAAK,VIIVEKE;INGEMARSSON,INGEMAR BROR;BLOM,ROLF;FORCHHEIMER,ROBERT;HAELLBERG,BJOERN I.C. |
分类号 |
G06Q20/40;G07F7/10;(IPC1-7):G06F15/30 |
主分类号 |
G06Q20/40 |
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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