But when you're taking the image orpreimageof a set, you make sure you say under what transformation. Ale jeśli bierzesz obraz, czyprzeciwobrazzbioru, musisz się upewnić, że podajesz pod jakim przekształceniem. QED A function between two measurable spaces is called a measurable...
For this purpose, we explain how a non-unitary measurement gate can be used to determine if S contains the target value. Our method is entirely theoretical and is based on the assumptions that a hash function can be implemented by a quantum computer and the key measurement gate we describe ...
However, such a model begs the question: how certain can one be that a given CA is indeed unique? In this paper we describe fundamental concepts of cryptographic hash functions, such as collision resistance, pre-image resistance, and second-preimage resistance. We then map these properties to ...
Pseudo) Preimage Attack on Round-Reduced Grøstl Hash Function and Others - Wu, Feng, et al. - 2012 () Citation Context ...eimage attack on the compression function of Whirlpool was presented and used for a second preimage attack on the whole hash function. Afterwards, Wu et al. ...
Since most of the recent meet-in-the-middle preimage attacks can be regarded as the partial target preimage attack, a collision attack is derived from the meet-in-the-middle preimage attack. By using our technique, pseudo collisions of the 43-step reduced SHA-256 and the 46-step reduced ...
For the preimage resistance, we present a surprising negative result: for a target image with the same left and right half, a preimage for the full MDC-4 hash function can be found in $2^n$ queries. Yet, restricted to target images with different left and right halves, we prove that ...
Its solution is presented from three different points of view and shows which functions belong to the same class determined by a given image (by the direct F-transform). Conditions under which a solution to the preimage problem is given by the inverse F-transform over the same fuzzy partition...