Computer Implemented System and Method for Providing Challenge-Response Solutions to Authenticate a User

A computer implemented method for providing challenge-response solutions to authenticate a user, said method including the following steps:

• interlinking a plurality of images with unique index values such that each of said images has a corresponding unique index value;
• enabling said user to select at least two interlinked images for the purpose of registration;
• generating at least two image matrices having interlinked images, wherein each of said image matrices include at least one interlinked image selected by said user, and arranging the unique index values corresponding to said interlinked images in the form of matrices and generating index-value matrices;
• enabling said user to specify the sequence in which said image matrices and said index-value matrices are to be traversed;
• generating and transmitting an authentication challenge of the form of one-time equation, computing at a web server the value of the one-time equation based on at least the interlinked images selected by the user during the registration, the corresponding index values and the sequence specified by the user, and storing the computed value at the web server;
• displaying said one time equation, said image matrices and said index value matrices, at least temporarily, on a client device;
• prompting said user to calculate the value of said one-time equation by using said image matrices, said index-value matrices and said sequence;
• transmitting to said web server the value calculated by said user;
• and
• comparing the value stored at the web server with value calculated by said user and authenticating said user only in the event that said value calculated by said user is equivalent to the value stored in said web server.

A computer program for instructing a computer to perform the method of providing challenge-response solutions to authenticate a user, said computer program configured to:

• interlink a plurality of images with unique index values such that each of said plurality of images has a corresponding unique index value;
• enable a user to select at least two interlinked images for the purpose of registration;
• generate at least two image matrices having interlinked images, wherein each of said image matrices include at least one interlinked image selected by said user, and arrange the unique index values corresponding to said interlinked images in the form of matrices and generating index-value matrices;
• enable said user to specify the sequence in which said image matrices and said index-value matrices are to be traversed;
• generate and transmit an authentication challenge of the form of one-time equation;
• compute the value of the one-time equation based on at least the interlinked images selected by the user during the registration, the corresponding index values and the sequence specified by the user, and store the computed value at said web server;
• display said one time equation, said image matrices and said index value matrices, at least temporarily, on a client device;
• prompt said user to calculate the value of said one-time equation by using said image matrices, said index-value matrices and said sequence;
• transmit to said web server the value calculated by said user;
• and
• compare the value stored at the web server with value calculated by said user and authenticate said user only in the event that said value calculated by said user is equivalent to the value stored in said web server.