نتایج جستجو برای: zero padding
تعداد نتایج: 150601 فیلتر نتایج به سال:
It has been observed that memory access performance can be improved by restructuring data declarations , using simple transformations such as array dimension padding and inter-array padding (array alignment) to reduce the number of misses in the cache and TLB (translation lookaside buuer). These transformations can be applied to both static and dynamic array variables. In this paper, we provide...
OBJECTIVE This study of pressure monitoring of multilayer inelastic bandaging and the effect of padding in breast cancer-related lymphedema patients aimed to measure the resting and working sub-bandage pressures in compression therapy for lymphedema patients and to determine whether applying additional padding has an additional effect in volume reduction of the limb. DESIGN Forty-eight patien...
At Eurocrypt 2002, Vaudenay introduced a powerful side-channel attack, which is called padding oracle attack, against CBC-mode encryption with PKCS#5 padding (See [6]). If there is an oracle which on receipt of a ciphertext, decrypts it and then replies to the sender whether the padding is correct or not, Vaudenay shows how to use that oracle to e ciently decrypt data without knowing the encryp...
BACKGROUND The use of an oscillating saw for cast removal creates a potential for iatrogenic injury and patient discomfort. Burns and abrasions can occur from the heat created by frictional forces and direct blade contact. With use of a cadaver model system, skin temperature measurements were recorded during cast removal with an oscillating saw. METHODS Casts of uniform thickness were applied...
At CRYPTO 2012, Knellwolf and Khovratovich presented a differential formulation of advanced meet-in-the-middle techniques for preimage attacks on hash functions. They demonstrated the usefulness of their approach by significantly improving the previously best known attacks on SHA-1 from CRYPTO 2009, increasing the number of attacked rounds from a 48-round one-block pseudo-preimage without paddi...
This paper characterizes collision preserving padding rules and provides variants of Merkle-Damg̊ard (MD) which are having less or no overhead costs due to length. We first show that suffix-free property of padding rule is necessary as well as sufficient to preserve the collision security of MD hash function for an arbitrary domain {0, 1}∗. Knowing this, we propose a simple suffix-free padding r...
In [8] Vaudenay presented an attack on block cipher CBCmode encryption when a particular padding method is used. In this paper, we employ a similar approach to analyse the padding methods of the ISO CBC-mode encryption standard. We show that, for several of the padding methods referred to by this standard, we can exploit an oracle returning padding correctness information to efficiently extract...
The intermediate angular-spectrum method is an efficient way to calculate computer-generated holograms without zero-padding and cropping operation. In this paper, we present optimized iteration algorithm improve the reconstruction quality in method. quadratic phase multiplied with target image as initial complex amplitude distribution suppresses speckle noise freedom domain introduced plane qua...
The use of wrist guards has limited efficacy in preventing wrist injuries during falling in many sports activities. The objectives of this study were to measure the ground reaction force of the hand under simulated impact of the forearm and hand complex with different padding conditions of wrist guards and to analyze their impact force attenuation and maximum energy absorption for improved func...
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