Computer implementation methods for generating dynamic password strings, computer systems, and computer program products, and computer implementation methods for authenticating dynamic passwords (dynamic password generation).

摘要

Generating and authenticating a dynamic password. A first password string is received from a user. One or more string generation rules with corresponding reference character positions of the first password string are received. The first password string, the string generation rules, and the corresponding reference character positions of the first password string are associated with login credentials of a user. For authentication, a first password string associated with a user is received. A second password string is generated, based on a partial password string and one or more string generation rules, with corresponding reference character positions of the partial password string, all associated with the user. The first password string is compared with the second password string, and the user is authenticated if the strings match.