Abstract: The present invention relates to methods and systems for enrolling a user for voice authentication and for performing voice authentication on a user of a network. The method of enrolling a user for voice authentication includes verifying the identity of the user and assigning an enrolment identifier to the user, if the identity of the user is verified. The enrolment identifier is then presented to the user. Subsequently, the user is prompted to utter a personal voice authentication password. The personal password uttered by the user is received and stored. A voice print model for the user is generated from the previously stored voice print. The method further includes storing the voice print model and associating the voice print model and the personal password with the enrolment identifier assigned to the user to facilitate retrieval thereof during voice authentication of the user. A method for performing voice authentication on a user of a network is also provided.