Extremely fast data encryption, decryption and secure hash scheme

摘要

An extremely fast data encryption, decryption and secure hash scheme encrypts or hashes data of any size, and can be implemented in a variety of software or hardware based data processing devices. A key and data are prepared for processing by separating them into a series of four byte integers, pad with zero bytes as necessary. A bit manipulation unit having four registers A, B, C and D that are each thirty-two bits long is initialized by loading the key into the registers. A series of operations are performed on the registers to manipulate bits in the registers. An exclusive OR (XOR) operation is then performed on contents of register D and a portion of the data to be processed.