A multiple reversible watermarking technique for fingerprint authentication

The classical fingerprint recognition system can be compromised at the database and the sensor. Therefore, to beef up security of the fingerprint recognition system, reversible watermarking is proposed to protect these two points. Reversible watermarks thwart manipulations, ., copy and replay attacks and ensure that native fingerprint recognition accuracy remains unaffected. Fingerprint-dependent watermark authenticates the database and shields it against the copy attack. The second watermark verifies fingerprint captured by the sensor and foil replay attack. is derived from the higher order moments of the fingerprint. Divergence in the computed and extracted watermarks indicates loss of authenticity. The experimental results validate proposed hypothesis.