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Password authentication

  • US 9,769,179 B2
  • Filed: 05/16/2016
  • Issued: 09/19/2017
  • Est. Priority Date: 02/29/2012
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • receiving a credential to access a computer system, the credential comprising a user password and a one-time password (OTP);

    in response to the computer system being unable to access an authentication server and unable to authenticate the OTP using the authentication server, storing, by a processor, the OTP and the user password to be used in a subsequent authentication by the authentication server and granting a user a first level of access to the computer system in view of authenticating the user password by the processor using a stored password and without authenticating the OTP;

    checking whether the computer system is able to access the authentication server; and

    in response to the computer system being able to access the authentication server, authenticating the stored OTP using the authentication server and granting, by the processor, the user a second level of access to the computer system, the second level of access being different than the first level of access.

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