US Patent No. 9,355,233

PASSWORD RESET USING HASH FUNCTIONS


Patent No. 9,355,233
Issue Date May 31, 2016
Title Password Reset Using Hash Functions
Inventorship Anthony D. Chen, Orlando, FL (US)
Christopher J. Maitland, Winter Park, FL (US)
Assignee Sprint Communications Company L.P., Overland Park, KS (US)

Claim of US Patent No. 9,355,233

1. A method of resetting passwords, comprising:
sending, by a password application on a server, to a user application, a notification that a current password will expire
in a predetermined time period;

receiving, by a reset application on the server a request to reset of a current password;
executing, by the reset application, a first hash function on at least one seed of a plurality of seeds comprising a password
profile, wherein the at least one seed is a timestamp of when the current password was created;

sending, by the reset application, to the user application, a first key;
receiving, by the reset application, a second key;
executing, by the reset application, a second hash function on the at least one seed;
determining, by the reset application, if a third key generated by the second hash function executed on the at least one seed
is similar to the second key;

permitting, by the reset application, a user account associated with the user application to access a reset environment, in
response to a determination that the third key generated by the second hash function executed on the at least one seed is
similar to the second key;

receiving, by the password application, a new password; and storing, by the password application, the new password and a timestamp
of when the new password was created in the data store.