OBJECTIVE To determine the incidence and incidence density of adverse events (AEs) in Spanish hospitals (including the pre-hospitalisation period). METHOD Retrospective cohort study. RESULTS The incidence of patients with AEs relating directly to hospital care was 8.4% (95% CI 7.7% to 9.1%) and rose 9.3% (95% CI 8.6% to 10.1%), including those from the pre-hospitalisation period. The incide...

In October 2001, after a 3-year evaluation process, NIST announced its decision to propose the Belgian algorithm Rijndael for the AES. In this paper, we discuss some of the work that has been done on Rijndael since its selection as the AES. We also outline briefly the design of a related cipher, called Anubis, and compare both designs.

OBJECTIVE The objective of this study was to analyze the variation in the rates of adverse events (AEs), and preventable AEs, between hospitals and hospital departments in order to investigate the room for improvement in reducing AEs at both levels. In addition, we explored the extent to which patient, department and hospital characteristics explain differences in the rates of AEs. DESIGN Str...

In this paper we examine the strength of AES against the related-key impossible differential attack, following the work of Jakimoski and Desmedt [12]. We use several additional observations to substantially improve the data and time complexities of their attacks. Amongst our results, we present a related-key attack on 7-round AES-192 with data complexity of 2 chosen plaintexts (instead of 2). O...

Acute encephalitis syndrome (AES) is an epidemiological term used to describe central nervous system disease due to infectious causative organism. AES is a serious condition needing critical care. High mortality rates and residual deficit in survivors also stresses the seriousness of the problem. AES occurs as a sporadic case or can be seen in the form of outbreaks. Many viral, nonviral causes ...

This paper proposes a new type of cache-collision timing attacks on software implementations of AES. Our major technique is of differential nature and is based on the internal cryptographic properties of AES, namely, on the MDS property of the linear code providing the diffusion matrix used in the MixColumns transform. It is a chosen-plaintext attack where pairs of AES executions are treated di...

This article starts with a discussion of three different attacks on masked AES hardware implementations. This discussion leads to the conclusion that glitches in masked circuits pose the biggest threat to masked hardware implementations in practice. Motivated by this fact, we pinpointed which parts of masked AES S-boxes cause the glitches that lead to side-channel leakage. The analysis reveals ...

In this paper we present a new representation of the AES key schedule, with some implications to security AES-based schemes. particular, show that AES-128 schedule can be split into four independent parallel computations operating on 32 bits chunks, up linear transformation. Surprisingly, property has not been described in literature after more than 20 years analysis AES. We two consequences ou...

In this paper we construct a chosen-key distinguisher and a related-key attack on the full 256-bit key AES. We define a notion of differential q-multicollision and show that for AES-256 q-multicollisions can be constructed in time q ·2 and with negligible memory, while we prove that the same task for an ideal cipher of the same block size would require at least O(q · 2 q−1 q+1 ) time. Using sim...

BACKGROUND We assessed cardiac adverse events (AEs) after primary lower extremity arterial revascularization (LEAR) for critical lower limb ischemia (CLI) in order to evaluate the impact of cardiac AEs on the clinical outcome. We created an optimized care protocol concerning CLI patients' preoperative work-up as well as intra- and postoperative surveillance according to recent important literat...