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Conference Paper
Performance Analysis of Format-Preserving Encryption Based on Unbalanced-Feistel Structure
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- Authors
- Keonwoo Kim, Ku-Young Chang
- Issue Date
- 2015-12
- Citation
- International Conference on Ubiquitous Information Technologies and Applications (CUTE) 2015 (LNEE 373), pp.425-430
- Publisher
- 한국정보처리학회
- Language
- English
- Type
- Conference Paper
- Abstract
- Format-Preserving Encryption (FPE) is used to produce a ciphertext with the same length and format as a plaintext. Some approaches to do that are a prefix cipher, a cycle walking, a feistel network and so on. In this paper, we present format-preserving encryption using the unbalanced-feistel structure. We apply our construction to FFX, VAES3 and BPS schemes, which are modes of operation for FPE. We also analyze the performance of three unbalanced-feistel FPE schemes over block ciphers. VAES3 using 128-bit AES encrypts credit card numbers at 5,924,000bps.
- KSP Keywords
- Credit card numbers(CCN), Feistel structure, Format preserving encryption(FPE), Performance analysis, Three unbalanced, block cipher, modes of operation