1. A method for generating a cancelable biometric, comprising: providing at least one pattern; combining the at least one pattern with a biometric image by employing a transform pixel operation to generate a transformed enrollment such that information about the transform pixel operation and the at least one pattern form a security key for protecting the biometric image; and if a new security key is needed, reusing the biometric image to generate the new security key to permit a previous security key to be cancelable.