Masked Implementation of Format Preserving Encryption on Low-End AVR Microcontrollers and High-End ARM Processors

Format-Preserving Encryption (FPE) for Internet of Things (IoT) enables the data encryption while preserving format and length original data. With these advantages, FPE can be utilized in many IoT applications. However, requires complicated computations are high overheads on embedded devices. In this paper, we proposed an efficient implementation Format-preserving Algorithm (FEA), which is Korean standard FPE, first-order masked FEA both low-end (i.e., AVR microcontroller) high-end ARM processor) Firstly, show vulnerability when it comes to Correlation Power Analysis (CPA) approach. Afterward, propose method masking technique device device. The secure against power analysis attacks but performance degradation measure only 2.53∼3.77% than naïve implementation.