Cybersecurity: Fast Encryption Cipher Block Chaining Mode (FCBC Mode) for Time Series Data

Abstract

Cipher Block Chaining (CBC) mode is used to make the encryption of each block of data in a data series more secure by making the encryption of the block interdependent. In case of time series data, the size of each data point includes the time information and actual data itself. This means that each block of data that is encrypted may hold only nearly half the actual data values due to timestamp information. This reduces the efficiency of encryption and decryption of data for applications that demand high frequency data. Fast Encryption Cipher Block Chaining Mode (FCBC Mode) provides a solution to overcome this to a great extent.