Methods and apparatus for efficiently storing and accessing secure data are disclosed. The method of storing includes encrypting data utilizing an encryption key to produce encrypted data, performing deterministic functions on the encrypted data to produce deterministic function values, masking the encryption key utilizing the deterministic function values to produce masked keys and combining the encrypted data and the masked keys to produce a secure package. The method of accessing includes de-combining a secure package to reproduce encrypted data and masked keys, selecting a deterministic function, performing the selected deterministic function on the reproduced encrypted data to reproduce a deterministic function value, de-masking a corresponding masked key utilizing the reproduced deterministic function value to reproduce an encryption key, and decrypting the reproduced encrypted data utilizing the reproduced encryption key to reproduce data.