Storing data on an external server with information-theoretic security, while using a key shorter than the itself, is impossible. As alternative, we propose scheme that achieves information-theoretically secure tamper evidence: The able to obtain information about stored data, but not staying undetected. Moreover, client only needs remember whose length much data. We provide security proof for ...

The combination of cryptographic tools and tamper-resistant mechanisms appeared first in military applications to secure communication links using tamper-resistant cipher machines. The spread of ATM networks brought the technology into the commercial mainstream. During the last years, the use of embedded cryptographic processors has spread from low-cost cryptoprocessors, such as smart cards use...

We describe how the compliance requirements for data retention from recent laws such as the US Sarbanes Oxley Act may be supported by a tamper-evident secure storage system based on probe storage with a patterned magnetic medium. This medium supports normal read/write operations by out-of-plane magnetisation of individual dots. We report on an experiment to show that in principle the medium als...

An original image is compressed with fuzzy transforms and is divided in images of sizes 2×2 on which we apply a known fragile watermarking process. A preprocessing phase is considered to determine the better compression rate for the coding process. We test this scheme in tamper detection analysis on a sample of images. The results are good in terms of accuracy for tamper detection with compress...

In some security-critical applications, a GPS satellite-navigation receiver is integrated with a tamper-resistant cryptographic module in order to provide remote attestation of location. Those in possession of the receiver may have an interest in it producing an incorrect output. Vehicle and container tracking, usage-based road charging, prisoner tagging, location-based access control are just ...

Tamper proofing is a crucial problem in the watermarking application. Aiming at the credibility of multimedia, we present a semi-fragile watermark based on the image permutation. Watermarking detection is performed without resorting to the host image and it is only controlled by secrete keys, thus the whole scheme does not have certain security gaps. The simulation experiments show that it can ...

Digital watermarking in medical images can ensure the authenticity and integrity of the image. This design paper reviews some existing watermarking schemes and proposes a reversible tamper detection and recovery watermarking scheme. Watermark data from ROI (Region Of Interest) are stored in RONI (Region Of Non Interest). The embedded watermark allows tampering detection and tampered image recov...

Abstract: Tamper resistance of LSI chips against physical attacks is studied from the viewpoint of LSI failure analysis. Laying stress on the basic physical phenomena generated in LSI chips under operating conditions, we outline today’s failure analysis techniques with application to evaluating or testing tamper resistance of LSI chips. We give some results from our case study on inactivation o...

We introduce the notion of tamper-evidence for mix networks in order to defend against attacks aimed at covertly leaking secret information held by corrupted mix servers. This is achieved by letting observers (which need not be trusted) verify the absence of covert channels by means of techniques we introduce herein. Our tamper-evident mix network is a type of re-encryption mixnet in which a se...

A tachograph in a vehicle records the operating conditions, such as speed, distance, brake operation acceleration, GPS information, etc., intervals of one second. For accidents, acceleration and direction traveling 1/100 s for 10 before after accident occurs collision data. equipped with is obliged to upload data administrative organizations periodically via other auxiliary storage devices like...