KM Renuka received the M.Sc. degree from the Meerut College, Meerut, India, in 2003, and the M.Phil. degree in mathematics from Chaudhary Charan Singh University, Meerut, where she is currently pursuing the Ph.D. degree with the Department of Mathematics. She also qualified the National Eligibility Test conducted by CSIR, in 2005. She is actively engaged in analyzing and designing password-based authentication protocols.