Format-preserving encryption (FPE) encrypts a plaintext of some specified format into a ciphertext of identical format—for example, encrypting a valid credit-card number into a valid credit-card …

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 de nitions, …

We propose a novel small-domain pseudo-random permuta-tion, also referred to as a small-domain cipher or small-domain (deterministic) encryption. We prove that our con-struction …

2012年1月20日 · When explaining the encryption modes, it mainly analyzes the construction features of FPE modes or schemes, introduces the principles of three classical modes, …

We investigate the natural ap-proach for achieving FPE on complex domains, the “rank-then-encipher” approach, and explore what it can and cannot do. We describe two fla-vors of …

You encrypt CCN X with key K and tweak T by letting Y = EK (X), where N = len (X). Security notions. We define multiple notions of security for FPE schemes. Our strongest adapts the …

2012年8月1日 · This paper presents FPE (Format-preserving Encryption) for character data in both fixed-width and variable-width encoding. Previous researches only studied FPE for fixed …

2023年12月1日 · Thumbnail-preserving encryption (TPE) can balance the usability and the privacy of images in the cloud. Most ideal TPE schemes obtain thumbnails by dividing the …

We introduce identity-based format-preserving encryption (IB-FPE) as a way to localize and limit the damage to format-preserving en-cryption (FPE) from key exposure. We give definitions, …

Format-Preserving Encryption (FPE). The FPE uses a derived pool S of Sboxes. Given an L-bit key K, a tweak tweak, a format specified by the parameters a and l, the parameters m and n, …