System and method for securing data

A system for protecting data, comprising:

• a memory in which encrypted data is stored;
• and
• a processor coupled to the memory, the processor comprising a decryptor that decrypts the encrypted data, the decryptor being adapted to variably bit roll the encrypted data based on at least an original key, to fixedly bit shuffle the bit-rolled data, to add a first key to the bit-shuffled data and to process the added data with a second key,
• wherein the decryptor receives the original key and the data address,
• wherein the processor generates multiplexer selection bits and the first key, wherein the first key is a shifted version of the original key, wherein the shifting is based on at least the data address,
• wherein the decryptor is adapted to variably bit roll the encrypted data by rotating bits within particular roll regions of encrypted data based on the multiplexer selection bits,
• wherein the encrypted data is split into the particular roll regions,
• wherein each roll region is characterized by the following characteristics:
• a respective roll skip, a respective roll length and a respective roll,
• wherein each of the respective characteristics of the corresponding roll region is determined from different bits of the original key, and
• wherein the respective roll skip determines where in the corresponding roll region to begin the roll and which portion of the roll region is not rolled, and
• wherein the respective roll amount determines the number of bit positions that are rolled around a sub-region of the corresponding roll region defined by the roll length.