Format-preserving encryption

About: Format-preserving encryption is a research topic. Over the lifetime, 112 publications have been published within this topic receiving 2050 citations.

Format preserving encryption utilizing a key version

Abstract: In one example, a system for format preserving encryption utilizing a key version can include a processor, and a memory resource storing instructions executable by the processor to determine a quantity of significant bits for a value to be encrypted, mask the value to include the quantity of significant bits, perform format preserving encryption on the masked value to generate an encrypted value, and append a key version to the encrypted value.

An Efficient New Format-Preserving Encryption Algorithm to encrypt the Personal Information

Abstract: Recently financial institutions and large retailers have a large amount of personal information leakage accident occurred one after another, and the damage is a trend of increasing day by d ay. Regulation such as enforcing the encryption of the personal identification information are strengthened. Efficient technolo gy to encrypt personal information is Format-preserving encrypt ion. Typical encryption expand output data length than input data le ngth and change a format. Format Preserving Encryption is an efficient method to minimize database and application modificat ion, because it makes preserve length and format of input data. In this paper, to encrypt personal information efficiently, we propose newly Format Preserving Encryption using Block cipher mode of operation. Keywords: Format-Preserving Encryption; Modes of Operation; Block cipher ; Data format; Data Length I.서 론 국내외를 불문하고 대량의 개인정보유출사고가 연이어 발생하고 있고, 이에 따라 개인정보보호법 개정 접수일(2014년 6월 17일), 수정일(2014년 8월 5일), 게재확정일(2014년 8월 5일)†주저자, km8944@korea.ac.kr‡교신저자, jcsung@uos.ac.kr(Corresponding author)

System for triple format preserving encryption

Abstract: Embodiments of the invention are directed to a system, method, or computer program product for triple format preserving encryption for activity data transmissions. In particular the invention provides a secure platform for transmission and storage of data based on multi-level compounded encryption while preserving native data format post-encryption to allow compatibility of post-encryption data with existing systems. In particular, the invention is configured for generating a plurality of encryption keys such that each of the encryption keys are structured to preserve pre-encryption data format, post-encryption. The invention is further configured for sequentially compounding encryption of native format data using the plurality of encryption keys.

Block Cipher Modes of Operation for Heterogeneous Format Preserving Encryption

Abstract: Format-preserving encryption (FPE), a kind of symmetric encryption, has caught a great deal of attention of late years. FPE, as the name suggests, does not change the format of inputs which may include the length of inputs, coding of characters or data size of inputs. It is very useful to encrypt or generate some data with fixed format such as credit card numbers (CCN), social security numbers (SSN) or even address. With this encryption, we can add encryption to existing applications without changing structures including input-output format or decreasing those performance. In this work we develop and discuss block cipher modes of operation for FPE which are applicable for messages consisting of multibyte characters and their securities. This paper also gives a way to implement these modes for the format consisting of characters encoded by EUC or UTF-8 and its performance. Formats consisting of multibyte characters – we call those “heterogeneous formats” – are very important in many countries including Japan where “Kanji” or other multibyte characters are used. In addition, this paper gives an efficient way to encrypt messages of such formats and modes of operations to realize a high performance encryption algorithm.