Implementation of the Format Preservation Encryption FE1 Algorithm 


Vol. 44,  No. 7, pp. 1373-1380, Jul.  2019
10.7840/kics.2019.44.7.1373


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  Abstract

Recently, the number of personal information leakage accidents have been occurred. To solve these problems, encryption of personal information have been strengthened, and personal information must be encrypted. Block cipher algorithms such as AES are used to preserve the confidentiality of private information, but because of the characteristics of the block cipher algorithm, there is a problem in that database can’t be used efficiently, since the ciphertext can not maintain of plaintext format. To solve this problem, FPE that guarantees that format of plaintext and format of ciphertext are the same is proposed. Of the various FPE, FE1 FE1 is a cryptographic algorithm based on the Unbalanced Feistel Network structure. Even if the domain is large, it can be used without performance decline and various lengths of plaintext can be encrypted without padding. However, due to the fixed range value of a plain text, there is a restriction that only plaintext corresponding to the range value is encrypted, so it can not be applied to a program. In this paper, we analyzed the FE1 algorithm and implemented it in Java to solve the restrictions and to input plain texts without restrictions.

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  Cite this article

[IEEE Style]

C. Lee, G. Kim, S. Hong, S. Lee, "Implementation of the Format Preservation Encryption FE1 Algorithm," The Journal of Korean Institute of Communications and Information Sciences, vol. 44, no. 7, pp. 1373-1380, 2019. DOI: 10.7840/kics.2019.44.7.1373.

[ACM Style]

Changhyun Lee, Gaeul Kim, Seokwoo Hong, and Sun-Young Lee. 2019. Implementation of the Format Preservation Encryption FE1 Algorithm. The Journal of Korean Institute of Communications and Information Sciences, 44, 7, (2019), 1373-1380. DOI: 10.7840/kics.2019.44.7.1373.

[KICS Style]

Changhyun Lee, Gaeul Kim, Seokwoo Hong, Sun-Young Lee, "Implementation of the Format Preservation Encryption FE1 Algorithm," The Journal of Korean Institute of Communications and Information Sciences, vol. 44, no. 7, pp. 1373-1380, 7. 2019. (https://doi.org/10.7840/kics.2019.44.7.1373)

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pISSN : 1226 - 4717
eISSN : 2287 - 3880