2018/01/23 by Andreas O. Bender, Bender, Andreas O.
Computer Science · #Advanced Malware Detection Techniques #Chaos-based Image/Signal Encryption #Cryptographic Implementations and Security #Cryptography and Security (cs.CR) #FOS: Computer and information sciences #cs.CR
paper · pdf · doi:10.48550/arxiv.1801.07800
6 pages, 1 figure
arxiv created 2018/01/23 · openalex publication_date 2018/01/23 · arxiv updated 2018/01/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
A system is described for exchanging encrypted short messages between computers which remain permanently isolated from any network accessible to the attacker. The main advantage is effective protection of these computers from malware which could circumvent the encryption. For transmission, the ciphertext is passed between isolated and connected computers in the form of a QR code, which is displayed on and scanned from a screen. The security of qrypt0 therefore rests on the cryptography and the computer's physical isolation rather than on the computer security of the encrypting device.