Creation of rhythmic password and authentication based on rhythmic password

摘要

A method and system for utilizing the biometric factors reflected in the typing as a kind of physiological password, to create a rhythmic password specific to the user, and to authenticate based on the rhythmic password. The method includes providing an original training text to a user, receiving an input training text provided by the user according to the original training text, extracting rhythmic characteristic values between adjacent text units of the input training text, and generating a rhythmic password of the user based on the extracted rhythmic characteristic values between adjacent text units. The invention utilizes the rhythm of a user inputting text can bring multiple advantages, including enhanced security of the password, and saving the user's cost of memorizing the password.

主权项

1. A method for creating a rhythmic password, comprising:
providing an original training text to a training text user; receiving an input training text provided by the training text user according to the original training text; extracting first rhythmic characteristic values between adjacent text units of the input training text; generating a rhythmic password of the training text user based on the extracted rhythmic characteristic values between adjacent text units; generating an original authentication text for a user to be authenticated; receiving an input authentication text provided by the user to be authenticated according to the original authentication text; extracting second rhythmic characteristic values between adjacent text units in the input authentication text; comparing the extracted second rhythmic characteristic values between adjacent text units with the rhythmic password of the training text user by calculating a difference between: (i) a sum of the time intervals of at least two successive pairs of adjacent text units in the input authentication text; and (ii) a sum of the time intervals of corresponding at least two pairs of adjacent text units recorded in the rhythmic password, the comparing including:
computing an average error value as a function of a count representing a number of pairs of adjacent text units in the input authentication text, a time interval between adjacent text units in the input authentication text, and a time interval between adjacent text units in the rhythmic password; andcomparing the computed average error value with a threshold; and determining that the user to be authenticated is authenticated successfully if the computed average error value is less than the threshold; wherein the rhythmic password is stored in a table having a plurality of rows and a plurality of columns, wherein an intersection formed by a given one of the rows and a given one of the columns stores therein time interval data, wherein the given one of the rows corresponds to at least a first text unit and a second text unit, wherein the given one of the columns corresponds to at least a third text unit and a fourth text unit, and wherein each of the first text unit, the second text unit, the third text unit and the fourth text unit are distinct from one another, wherein the time interval data stored at the intersection is the time interval of adjacent text units when any one of the first text unit and the second text unit is adjacent with any one of the third text unit and the fourth text unit.