Performance of Iris Based Hard Fuzzy Vault

Blend of cryptography and biometrics results an emerging architecture known as Crypto-biometrics which produces high level security. Fuzzy vault is a cryptographic construction used to store iris biometric templates which are binded by a random key extracted from same iris textures. Though the fuzzy vault provides better security, it is affected by cross matching, non uniform nature of biometric data. To overcome these limitations, we propose a scheme that hardens both fuzzy vault and secret key using password based on iris textures. By using password an additional layer of security is embedded to achieve high level security.