Preprint Concept Paper Version 1 This version is not peer-reviewed

Multiple Algorithm Aperiodic Cryptosystem

Version 1 : Received: 5 October 2019 / Approved: 8 October 2019 / Online: 8 October 2019 (10:37:23 CEST)

How to cite: Braddy, R. Multiple Algorithm Aperiodic Cryptosystem. Preprints 2019, 2019100085 (doi: 10.20944/preprints201910.0085.v1). Braddy, R. Multiple Algorithm Aperiodic Cryptosystem. Preprints 2019, 2019100085 (doi: 10.20944/preprints201910.0085.v1).

Abstract

MAACS is a software architecture which layers multiple standard cipher algorithms together to increase the overall strength of the encrypted data stream, without modifying the standard algorithms, which have been heavily vetted from a cryptanalysis perspective and are already widely deployed. This layering technique makes the combination of algorithms significantly more resistant to traditional cryptanalysis attacks, while also addressing increased concerns over future quantum computing attacks against these algorithms. For example, concerns over published attacks against 256-bit AES and potential future attacks emanating from Grover’s algorithm and other unknowns in the quantum computing era are explored. Several approaches for evolving AES are considered. MAACS uses a concept termed "aperiodic modulation", whereby of a set of cryptographic algorithms are modified by an- other, independent software algorithm in an unpredictable, pseudo-random manner. In the MAACS reference architecture, a 256-bit ChaCha20 cryptographically secure pseudorandom number generator (CSPRNG) drives an aperiodic modulator that orchestrates encryption/decryption processes multiplexed across eight parallel 128-bit AES instances, yielding a cryptosystem with a composite strength of 1,376 bits or more in larger configurations.

Subject Areas

encryption cryptography; AES ChaCha20; quantum computing

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