Patent
Encryption and decryption techniques using shuffle function
Paul Y. F. Wu,Richard J. Nathan,Harry Leslie Tredennick +2 more
- 08 Jun 2018
24
TL;DR: In this paper, a secret key is used to generate vectors that describe permutation (or repositioning) of characters within a segment length equal to a length of the transposition vector.
read more
Abstract: Encryption and decryption techniques based on one or more transposition vectors. A secret key is used to generate vectors that describe permutation (or repositioning) of characters within a segment length equal to a length of the transposition vector. The transposition vector is then inherited by the encryption process, which shifts characters and encrypts those characters using a variety of encryption processes, all completely reversible. In one embodiment, one or more auxiliary keys, transmitted as clear text header values, are used as initial values to vary the transposition vectors generated from the secret key, e.g., from encryption-to-encryption. Any number of rounds of encryption can be applied, each having associated headers used to “detokenize” encryption data and perform rounds to decryption to recover the original data (or parent token information). Format preserving encryption (FPE) techniques are also provided with application to, e.g., payment processing.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Patent
Session protocol for backward security between paired devices
Mitchell D. Adler,Sierra Yannick L,Ganesha Adkasthala Ganapathi Batta,Michael J. Giles,Akshay Mangalam Srivatsa,Craig P. Dooley,Sriram Hariharan,Robert D. Watson +7 more
- 23 Sep 2016
TL;DR: In this paper, the authors provide a method for establishing a secured session with backward security between a first device and a second device using shared keys stored at the first and second devices.
11
Patent
Secure communications using loop-based authentication flow
Paul Y. F. Wu,Richard J. Nathan,Harry Leslie Tredennick +2 more
- 07 Mar 2016
TL;DR: In this article, a first party uses a secret key to encrypt information, which is then sent through an untrusted connection to a second party, however, the second party cannot decrypt the information on its own, and it relays the encrypted information through a secure network.
11
Patent
Transmitter for encoding information with randomly flipped bits and transmitting that information through a communications channel
Gideon Samid
- 06 Nov 2017
TL;DR: In this paper, a transmitter encodes information with randomly flipped bits using a secure memory, and the total amount of bits to be flipped where M < N is stored using the secure memory.
5
Patent
Fast format-preserving encryption for variable length data
Eugene Pivovarov
- 11 Jan 2016
TL;DR: In this article, an input string can be divided into blocks (potentially of varying length) and an arrangement of cryptographic pipelines can perform operations on different blocks, each pipeline providing an output block.
4
Patent
Progressive key rotation for format preserving encryption (FPE)
Shankar Ramasubramanian Iyer,Navanith R. Keerthi +1 more
- 26 Sep 2016
TL;DR: In this paper, the authors provide a technological improvement to a cipher by improving data security of format-preserving encryption (FPE), by embedding specific key identifiers for rotating keys directly into ciphertext.
4
References
Patent
Apparatus for and method of secure atm debit card and credit card payment transactions via the internet
Robert Hodgson,Harry Hargens +1 more
- 18 Jan 2002
TL;DR: In this paper, a combination software and/or hardware system that provides consumers with a secure method for making and accepting credit card and ATM card payments over the Internet is presented, which is independent of the encryption algorithm(s) used, and may be implemented with any number of encryption algorithms.
156
Patent
Format-preserving cryptographic systems
Terence Spies,Matthew J. Pauker +1 more
- 29 Apr 2009
TL;DR: In this article, the key requests in a data processing system may include identifiers such as user names, policy names, and application names, along with validity period information indicating when corresponding keys are valid.
130
Patent
Purchase transaction system with encrypted payment card data
Terence Spies,Matthew J. Pauker +1 more
- 01 Jun 2010
TL;DR: In this paper, payment card information is encrypted using a modified version of an encryption key and a tweak formed by a second part of the payment card and the encryption key's encryption key.
68
Patent
Method of providing an authenticable time-and-location indication
Chassagne Olivier
- 31 May 2011
TL;DR: In this paper, a radio-navigation signal receiver is used to generate a digital authentication code using a cryptographic function taking as inputs at least the positioning data and the retrieved cryptographic tokens.
66
Patent
Method and system for performing perfectly secure key exchange and authenticated messaging
Paul McGough
- 18 Apr 2005
TL;DR: In this article, a system and method for the cryptographic exchange of information is provided which affords maximum security, process simplicity and participant convenience to any software application, business process or device used to communicate messages.
66