About: Format-preserving encryption is a research topic. Over the lifetime, 112 publications have been published within this topic receiving 2050 citations.
Papers published on a yearly basis
27 Feb 2013
04 Jun 2021
TL;DR: An efficient implementation of Format-preserving Encryption Algorithm (FEA), which is the Korean standard of FPE, and the first-order masked implementation of FEA on both low-end and high-end IoT devices.
Abstract: Format-Preserving Encryption (FPE) for Internet of Things (IoT) enables the data encryption while preserving the format and length of original data. With these advantages, FPE can be utilized in many IoT applications. However, FPE requires complicated computations and these are high overheads on IoT embedded devices. In this paper, we proposed an efficient implementation of Format-preserving Encryption Algorithm (FEA), which is the Korean standard of FPE, and the first-order masked implementation of FEA on both low-end (i.e., AVR microcontroller) and high-end (i.e., ARM processor) IoT devices. Firstly, we show the vulnerability of FEA when it comes to the Correlation Power Analysis (CPA) approach. Afterward, we propose an efficient implementation method and the masking technique for both low-end IoT device and high-end IoT device. The proposed method is secure against power analysis attacks but the performance degradation of masked measure is only 2.53∼3.77% than the naive FEA implementation.
TL;DR: In this article, identity-based format-preserving encryption (IB-FPE) is introduced as a way to localize and limit the damage to FPE from key exposure.
Abstract: We introduce identity-based format-preserving encryption (IB-FPE) as a way to localize and limit the damage to format-preserving encryption (FPE) from key exposure. We give definitions, relations between them, generic attacks and two transforms of FPE schemes to IB-FPE schemes. As a special case, we introduce and cover identity-based tweakable blockciphers. We apply all this to analyze DFF, an FPE scheme proposed to NIST for standardization.
••01 Jan 2012
TL;DR: An integer FPE scheme based on type-2 Feistel network which divides the input into k sub-blocks to provide better diffusion and be better immunity to differential cryptanalysis is presented.
Abstract: Format-preserving encryption implies a block cipher which encrypts a plaintext of some specified format into a ciphertext of identical format. In the paper, we make an overview of various types of Feistel networks used in FPE schemes and show that all Feistel networks divide the input into two sub-blocks. Then we present an integer FPE scheme based on type-2 Feistel network which divides the input into k sub-blocks (here k=4) to provide better diffusion and be better immunity to differential cryptanalysis.