Systems and methods to generate authorization data based on biometric data and non-biometric data

Abstract

A method of selectively authorizing access includes obtaining, at an authentication device, first information corresponding to first synthetic biometric data. The method also includes obtaining, at the authentication device, first common synthetic data and second biometric data. The method further includes generating, at the authentication device, second common synthetic data based on the first information and the second biometric data. The method also includes selectively authorizing, by the authentication device, access based on a comparison of the first common synthetic data and the second common synthetic data.

What is claimed is: 
     
         1 . An apparatus comprising:
 a first interface configured to receive first biometric data;   a second interface configured to receive non-biometric data; and   an authorization data generator configured to generate second biometric data by modifying the first biometric data based on the non-biometric data.   
     
     
         2 . The apparatus of  claim 1 , wherein the second biometric data includes a synthetic finger print, a synthetic iris scan, a synthetic image of a face, or a synthetic speech signal. 
     
     
         3 . The apparatus of  claim 1 , wherein the first biometric data is irrecoverable from the second biometric data. 
     
     
         4 . The apparatus of  claim 1 , wherein the authorization data generator includes at least one of an iris scan generator, a finger print generator, a facial image generator, another image generator, or an audio generator. 
     
     
         5 . The apparatus of  claim 1 ,
 wherein the authorization data generator is further configured to:
 extract features of the first biometric data, and 
 generate modified features based on the features and the non-biometric data, and 
   wherein the second biometric data is generated based on the modified features.   
     
     
         6 . The apparatus of  claim 1 , wherein the second biometric data is generated by applying a one-way function to the first biometric data and the non-biometric data. 
     
     
         7 . The apparatus of  claim 6 , wherein the one-way function includes a hash function, a hyperbolic tangent function, or another hyperbolic function, and wherein the second biometric data is generated by applying the one-way function to a product, a ratio, a sum, or a difference of a value of the first biometric data and a corresponding value of the non-biometric data. 
     
     
         8 . The apparatus of  claim 1 , wherein the authorization data generator is further configured to:
 extract features of the first biometric data,   generate a plurality of key values based on the non-biometric data, and   determine a feature correspondence between each of the features and a particular key value of the plurality of key values.   
     
     
         9 . The apparatus of  claim 8 ,
 wherein the first biometric data includes a first finger print,   wherein the features of the first biometric data include spikes of the first finger print,   wherein the spikes of the first finger print indicate at least one of a whorl, a loop, a delta, a bifurcation, a ridge line, or a termination,   wherein the authorization data generator is further configured to generate a second finger print by modifying at least a first spike of the spikes based on a corresponding key value of the plurality of key values, and   wherein the second biometric data includes the second finger print.   
     
     
         10 . The apparatus of  claim 8 ,
 wherein the first biometric data includes a first iris scan,   wherein the features include at least one of a radial furrow, a concentric furrow, a crypt, a collarette, or a pupil size,   wherein the authorization data generator is further configured to generate a second iris scan by modifying at least a first feature of the features based on a corresponding key value of the plurality of key values, and   wherein the second biometric data includes the second iris scan.   
     
     
         11 . The apparatus of  claim 1 ,
 wherein the authorization data generator is further configured to, based on determining that the first biometric data is received during an authentication phase, modify the first biometric data to align with enrollment biometric data prior to generating the second biometric data,   wherein the enrollment biometric data is received during an enrollment phase, and   wherein the first biometric data is modified to align with the enrollment biometric data by applying at least one of a rotation function, a translation function, or a scaling function to the first biometric data.   
     
     
         12 . A method comprising:
 receiving biometric data at a device;   receiving non-biometric data at the device;   selecting, at the device, a first image of a plurality of images, wherein the first image is selected based on the biometric data; and   generating, at the device, a second image by modifying the first image based on the non-biometric data.   
     
     
         13 . The method of  claim 12 , wherein the plurality of images includes non-biometric images. 
     
     
         14 . The method of  claim 12 , further comprising:
 extracting, at the device, biometric features of the biometric data; and   generating, at the device, modified biometric features by modifying the biometric features based on the non-biometric data,   wherein the first image is selected based on mapping data that maps values of the modified biometric features to the plurality of images.   
     
     
         15 . The method of  claim 14 , further comprising:
 generating, at the device, a plurality of key values based on the non-biometric data; and   determining, at the device, a feature correspondence between each of the biometric features and a particular key value of the plurality of key values,   wherein a modified feature value of the modified biometric features is generated by applying a one-way function to a ratio, a product, a sum, or a difference of a particular feature value of the biometric features and a corresponding key value of the plurality of key values, and   wherein the one-way function includes a hash function, a hyperbolic tangent function, or another hyperbolic function.   
     
     
         16 . The method of  claim 14 , wherein the biometric data includes an iris scan, and wherein the biometric features indicate at least one of a radial furrow, a concentric furrow, a crypt, a collarette, or a pupil size. 
     
     
         17 . The method of  claim 16 , wherein the modified biometric features are generated by applying a one-way function to the biometric features to modify the at least one of the radial furrow, the concentric furrow, the crypt, the collarette, or the pupil size. 
     
     
         18 . The method of  claim 14 , wherein the modified biometric features are generated by applying at least one of a rotation function, a blurring function, or a noise function to the biometric data. 
     
     
         19 . The method of  claim 14 , wherein the second image is generated by applying at least one of a rotation function, a scaling function, or a shading function to the first image based on the non-biometric data. 
     
     
         20 . A device comprising:
 a first interface configured to receive first biometric data;   a second interface configured to receive user input corresponding to non-biometric data; and   an authorization data generator configured to generate audio data by transforming the first biometric data based on the non-biometric data.   
     
     
         21 . The device of  claim 20 , wherein the authorization data generator is further configured to:
 determine a speaker recognition score by performing speaker recognition on the user input,   generate text by performing speech recognition on the user input, and   generate the non-biometric data based on the speaker recognition score and the text.   
     
     
         22 . The device of  claim 20 , wherein the authorization data generator is further configured to generate second biometric data by modifying the first biometric data based on the non-biometric data, and wherein the audio data is generated based on the second biometric data. 
     
     
         23 . The device of  claim 20 , wherein generating the audio data includes:
 extracting features of the first biometric data; and   generating a first spectral envelope based on the features.   
     
     
         24 . The device of  claim 23 , wherein generating the audio data includes:
 generating a second spectral envelope based on the non-biometric data, and   combining the first spectral envelope and the second spectral envelope to generate the audio data.   
     
     
         25 . The device of  claim 23 ,
 wherein generating the audio data includes generating a note sequence based on the non-biometric data,   wherein the audio data includes the first spectral envelope and the note sequence, and   wherein the note sequence indicates at least one of a chord, a tempo, an octave range, or a note progression.   
     
     
         26 . An apparatus comprising:
 means for receiving first biometric data in a first format;   means for receiving second biometric data in a second format; and   means for generating authorization data including means for converting the first biometric data and the second biometric data to a common format.   
     
     
         27 . The apparatus of  claim 26 , wherein converting the first biometric data and the second biometric data to the common format includes performing a domain transformation on the first biometric data, the second biometric data, or both. 
     
     
         28 . The apparatus of  claim 26 , wherein the first format corresponds to one of an audio domain or an image domain, and wherein the second format corresponds to one of the audio domain, the image domain, or a text domain. 
     
     
         29 . The apparatus of  claim 26 , further comprising means for receiving non-biometric data,
 wherein the authorization data is generated based on the non-biometric data, and   wherein the common format corresponds to an audio domain or an image domain.   
     
     
         30 . The apparatus of  claim 29 , wherein the means for receiving first biometric data, the means for receiving second biometric data, the means for receiving non-biometric data, and the means for generating the authorization data are integrated into a communications device, a personal digital assistant (PDA), a tablet, a computer, a music player, a video player, an entertainment unit, a navigation device, or a set top box.