Method and system for backing up private key of electronic signature token
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United States of America Patent
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Aug 22, 2017
Issued Date -
N/A
app pub date -
Apr 18, 2014
filing date -
May 23, 2013
priority date (Note) -
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Abstract
Provided are a method and system for backing up a private key in an electronic signature token, the method comprising: a first electronic signature token and a second electronic signature token negotiate an encryption strategy and a corresponding decryption strategy to use for communication therebetween; the first electronic signature token utilizes the encryption strategy to encrypt a request data packet and transmits the encrypted request data packet; the second electronic signature token decrypts the encrypted request data packet; the second electronic signature token utilizes the encryption strategy to encrypt a response data packet and transmits the encrypted responses data packet; and the first electronic signature token utilizes the decryption strategy to decrypt the response data packet, and acquires a private key from the response data packet.
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