METHOD FOR GENERATING ONE-TIME PASSWORD
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United States of America Patent
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Issued Date -
Aug 20, 2009
app pub date -
Jul 16, 2008
filing date -
Feb 20, 2008
priority date (Note) -
Abandoned
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Abstract
A method for generating a one-time password (OTP) by using software only is provided. The method is suitable for generating a common dynamic password in a first electronic device and a second electronic device. First, an initial number is provided to the first electronic device and the second electronic devices. Then, a value is generated, encrypted into a transmission value according to the initial number, and transmitted to the second electronic device by the first electronic device. Next, the transmission value is decrypted by the second electronic device according to the initial number to obtain the value. Finally, a dynamic password is respectively generated in the first electronic device and the second electronic device according to the initial number and the value. Thereby, an OTP system is constituted.
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