Filters








674 Hits in 5.4 sec

A New Dedicated 256-Bit Hash Function: FORK-256 [chapter]

Deukjo Hong, Donghoon Chang, Jaechul Sung, Sangjin Lee, Seokhie Hong, Jaesang Lee, Dukjae Moon, Sungtaek Chee
<span title="">2006</span> <i title="Springer Berlin Heidelberg"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/2w3awgokqne6te4nvlofavy5a4" style="color: black;">Lecture Notes in Computer Science</a> </i> &nbsp;
This paper describes a new software-efficient 256-bit hash function, FORK-256. Recently proposed attacks on MD5 and SHA-1 motivate a new hash function design.  ...  It is designed not only to have higher security but also to be faster than SHA-256. The performance of the new hash function is at least 30% better than that of SHA-256 in software.  ...  paper we have proposed a new dedicated 256-bit hash function FORK-256. The main features are the followings; -The structure of the compression function consists of 4 parallel branch functions.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/11799313_13">doi:10.1007/11799313_13</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/dnsyu7slendbznta72pj34vkbq">fatcat:dnsyu7slendbznta72pj34vkbq</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20190505004349/https://link.springer.com/content/pdf/10.1007%2F11799313_13.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/4b/21/4b21ad84f26ee64ef74185977b5fb3ed7c257467.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/11799313_13"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> springer.com </button> </a>

Extending FORK-256 Attack to the Full Hash Function [chapter]

Scott Contini, Krystian Matusiewicz, Josef Pieprzyk
<span title="">2007</span> <i title="Springer Berlin Heidelberg"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/2w3awgokqne6te4nvlofavy5a4" style="color: black;">Lecture Notes in Computer Science</a> </i> &nbsp;
In a paper published in FSE 2007, a way of obtaining nearcollisions and in theory also collisions for the FORK-256 hash function was presented [8] .  ...  In particular, this means that the full hash function with the prespecified IV is vulnerable in practice, not just in theory. We exhibit an example near-collision for the complete hash function.  ...  Brief Description of FORK-256 FORK-256 is a dedicated hash function based on the classical Merkle-Damgård iterative construction with the compression function that maps 256 bits of state and 512 bits of  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-3-540-77048-0_23">doi:10.1007/978-3-540-77048-0_23</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/zjfvtflnmbgujelypi7h5iwcfy">fatcat:zjfvtflnmbgujelypi7h5iwcfy</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20080727141248/http://www.ics.mq.edu.au/~kmatus/ExtendingFORK-paper.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/42/b6/42b66e794e9504a12710b9c371e938bce72bf38a.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-3-540-77048-0_23"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> springer.com </button> </a>

Evaluation On Recent Committed Crypt Analysis Hash Function

A. Arul Lawrence Selvakumar, C. Suresh Ganandhas
<span title="2008-10-20">2008</span> <i title="Zenodo"> Zenodo </i> &nbsp;
Recent proposed attacks an MD5 & SHA motivate a new hash function design. It is designed not only to have higher security but also to be faster than SHA-256.  ...  The performance of the new hash function is at least 30% better than that of SHA-256 in software. And it is secure against any known cryptographic attacks on hash functions.  ...  In this paper, we propose a new dedicated hash function FORK-256. According to the above observation, we determined the design goals as follows.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.5281/zenodo.1331192">doi:10.5281/zenodo.1331192</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/ofus3m3xkffihcltkrqkve3c6m">fatcat:ofus3m3xkffihcltkrqkve3c6m</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20220129205709/https://zenodo.org/record/1331193/files/3917.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/77/42/77420567847e327e5ff95f390f915be7f090b953.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.5281/zenodo.1331192"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> zenodo.org </button> </a>

Building a 256-bit hash function on a stronger MD variant

Harshvardhan Tiwari, Krishna Asawa
<span title="2014-01-01">2014</span> <i title="Walter de Gruyter GmbH"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/hntuq7ly5bcglnotwwvao6hspu" style="color: black;">Open Computer Science</a> </i> &nbsp;
Its compression function takes three inputs and generates a single output of 256-bit length. An extra input to a compression function is a 64-bit counter (number of bits hashed so far).  ...  All the MD4 design based hash functions such as MD5, SHA-1, RIPEMD-160 and FORK-256 are built on Merkle-Damgård iterative method.  ...  FORK-256 [30] was the first hash function in FORK family, introduced in the first NIST hash workshop and at FSE 2006. NewFORK-256 [31] hash function was introduced in 2007.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.2478/s13537-014-0204-7">doi:10.2478/s13537-014-0204-7</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/pxufusgp2fb6zk66clnfo5rzzu">fatcat:pxufusgp2fb6zk66clnfo5rzzu</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20201202041429/https://www.degruyter.com/downloadpdf/journals/comp/4/2/article-p67.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/84/83/848303024b16b618aed1e81127496357b4f3f783.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.2478/s13537-014-0204-7"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> Publisher / doi.org </button> </a>

Cryptanalysis of FORK-256 [chapter]

Krystian Matusiewicz, Thomas Peyrin, Olivier Billet, Scott Contini, Josef Pieprzyk
<i title="Springer Berlin Heidelberg"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/2w3awgokqne6te4nvlofavy5a4" style="color: black;">Lecture Notes in Computer Science</a> </i> &nbsp;
In this paper we present a cryptanalysis of a new 256-bit hash function, FORK-256, proposed by Hong et al. at FSE 2006.  ...  We show their possible uses in different attack scenarios by giving a 1-bit (resp. 2-bit) near collision attack against the full compression function of FORK-256 running with complexity of 2 125 (resp.  ...  Description of FORK-256 FORK-256 is a new dedicated hash function proposed by Hong et al. [3, 2] .  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-3-540-74619-5_2">doi:10.1007/978-3-540-74619-5_2</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/wf6yd7t6zzapleaec5q4eqxrfu">fatcat:wf6yd7t6zzapleaec5q4eqxrfu</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20170812113008/https://www.iacr.org/archive/fse2007/45930019/45930019.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/a8/2b/a82b80d2556d5c077fcc9320e8f6fc5c7af95618.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-3-540-74619-5_2"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> springer.com </button> </a>

Practical Pseudo-collisions for Hash Functions ARIRANG-224/384 [chapter]

Jian Guo, Krystian Matusiewicz, Lars R. Knudsen, San Ling, Huaxiong Wang
<span title="">2009</span> <i title="Springer Berlin Heidelberg"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/2w3awgokqne6te4nvlofavy5a4" style="color: black;">Lecture Notes in Computer Science</a> </i> &nbsp;
We use near collisions for the compression function to construct pseudo-collisions for the complete hash functions ARIRANG-224 and ARIRANG-384 with complexity 2 23 and close to 2 0 , respectively.  ...  close to 2 0 and memory requirements of only a few words.  ...  The compression function is a dedicated design that iterates a step transformation that can be seen as a target-heavy unbalanced Feistel network [9] .  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-3-642-05445-7_9">doi:10.1007/978-3-642-05445-7_9</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/lgfiuuo5w5e4vbqi4ckpfwwaqm">fatcat:lgfiuuo5w5e4vbqi4ckpfwwaqm</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20170812153352/https://dr.ntu.edu.sg/bitstream/handle/10220/7715/C24.Practical%20pseudo-collisions%20for%20hash%20functions%20ARIRANG-224384.pdf?sequence=1" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/d9/60/d960b9980edd31a28f8569dd9254551ef64030bc.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-3-642-05445-7_9"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> springer.com </button> </a>

Hash function requirements for Schnorr signatures

Gregory Neven, Nigel P. Smart, Bogdan Warinschi
<span title="">2009</span> <i title="Walter de Gruyter GmbH"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/assei3huevd3bfn4hgcs7we3ji" style="color: black;">Journal of Mathematical Cryptology</a> </i> &nbsp;
Second, we conjecture that our properties require O(2 n ) work to solve for a hash function with n-bit output, thereby allowing the use of shorter hashes and saving twenty-five percent in signature size  ...  First, since security does not rely on the hash function being collision resistant, Schnorr signatures can still be securely instantiated with SHA-1/SHA-256, unlike DSA signatures.  ...  Therefore, using for example the first 128 bits of the SHA-256 hash should in practice provide a security level of 128 bits.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1515/jmc.2009.004">doi:10.1515/jmc.2009.004</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/275lzcagsnhjjciqmjk3oktotq">fatcat:275lzcagsnhjjciqmjk3oktotq</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20180723154312/http://doc.rero.ch/record/290525/files/jmc.2009.004.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/5e/bd/5ebd0258495ed6ee8ac14eb6690e920312178da7.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1515/jmc.2009.004"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> degruyter.com </button> </a>

A Meet-in-the-Middle Collision Attack Against the New FORK-256 [chapter]

Markku-Juhani O. Saarinen
<i title="Springer Berlin Heidelberg"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/c6ihxetrmncwnarhirtjafjhiu" style="color: black;">Lecture Notes in Computer Science</a> </i> &nbsp;
We show that a 2 112.9 collision attack exists against the FORK-256 Hash Function.  ...  The attack is surprisingly simple compared to existing published FORK-256 cryptanalysis work, yet is the best known result against the new, tweaked version of the hash.  ...  Introduction FORK-256 is a dedicated hash function that produces a 256-bit hash from a message of arbitrary size.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-3-540-77026-8_2">doi:10.1007/978-3-540-77026-8_2</a> <a target="_blank" rel="external noopener" href="https://dblp.org/rec/conf/indocrypt/Saarinen07a.html">dblp:conf/indocrypt/Saarinen07a</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/qfcaqz3q6ngcxofhyo4c4avkee">fatcat:qfcaqz3q6ngcxofhyo4c4avkee</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20170808015953/https://eprint.iacr.org/2007/373.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/45/11/451191e68da73b7acf0e59efa7dff87be480e87f.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-3-540-77026-8_2"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> springer.com </button> </a>

Verifiable Delay Functions [chapter]

Dan Boneh, Joseph Bonneau, Benedikt Bünz, Ben Fisch
<span title="">2018</span> <i title="Springer International Publishing"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/2w3awgokqne6te4nvlofavy5a4" style="color: black;">Lecture Notes in Computer Science</a> </i> &nbsp;
We study the problem of building a verifiable delay function (VDF).  ...  A VDF requires a specified number of sequential steps to evaluate, yet produces a unique output that can be efficiently and publicly verified.  ...  This work was supported by NSF, a grant from ONR, the Simons Foundation, and a Google faculty fellowship.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-3-319-96884-1_25">doi:10.1007/978-3-319-96884-1_25</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/dmqgme5jnzgpvhppmnnrapm5lm">fatcat:dmqgme5jnzgpvhppmnnrapm5lm</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20190303052102/http://pdfs.semanticscholar.org/aff9/1319fb49fed2b9519ab7d94594d09b69b0a2.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/af/f9/aff91319fb49fed2b9519ab7d94594d09b69b0a2.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/978-3-319-96884-1_25"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> springer.com </button> </a>

A Standalone FPGA-based Miner for Lyra2REv2 Cryptocurrencies [article]

Jean-François Têtu, Louis-Charles Trudeau, Michiel Van Beirendonck, Alexios Balatsoukas-Stimming, Pascal Giard
<span title="2020-01-29">2020</span> <i > arXiv </i> &nbsp; <span class="release-stage" >pre-print</span>
Lyra2REv2 is a hashing algorithm that consists of a chain of individual hashing algorithms, and it is used as a proof-of-work function in several cryptocurrencies.  ...  The most crucial and exotic hashing algorithm in the Lyra2REv2 chain is a specific instance of the general Lyra2 algorithm.  ...  ACKNOWLEDGMENT The authors gratefully acknowledge the support of NVIDIA Corporation with the donation of a Titan Xp GPU, and of Xilinx for the donation of a Zynq UltraScale+ MPSoC ZCU102 Evaluation Kit  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/1905.08792v2">arXiv:1905.08792v2</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/uieboioy2jah7f4oytoc53j52u">fatcat:uieboioy2jah7f4oytoc53j52u</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20200321103415/https://arxiv.org/pdf/1905.08792v2.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/f3/49/f3496f58f633439163844f91e756f56b0300a7b1.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/1905.08792v2" title="arxiv.org access"> <button class="ui compact blue labeled icon button serp-button"> <i class="file alternate outline icon"></i> arxiv.org </button> </a>

The Ethics of Contentious Hard Forks in Blockchain Networks With Fixed Features

Tae Wan Kim, Ariel Zetlin-Jones
<span title="2019-08-28">2019</span> <i title="Frontiers Media SA"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/jd5usxas3ngstggm33no3s26ye" style="color: black;">Frontiers in Blockchain</a> </i> &nbsp;
An advantage of blockchain protocols is that a decentralized community of users may each update and maintain a public ledger without the need for a trusted third party.  ...  AUTHOR CONTRIBUTIONS All authors listed have made a substantial, direct and intellectual contribution to the work, and approved it for publication.  ...  Bitcoin's hash function, SHA-256, is a cyptographic function that takes as an input a string of characters of any length and outputs a 256-bit hash.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3389/fbloc.2019.00009">doi:10.3389/fbloc.2019.00009</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/izzsnma23nexjoauqizrp6dma4">fatcat:izzsnma23nexjoauqizrp6dma4</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20200216030938/https://pdfs.semanticscholar.org/78a7/7b26240f5389a4f47a6520f544c4fb1551ad.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/78/a7/78a77b26240f5389a4f47a6520f544c4fb1551ad.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3389/fbloc.2019.00009"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> frontiersin.org </button> </a>

Cryptanalysis of Forkciphers

Augustin Bariant, Nicolas David, Gaëtan Leurent
<span title="2020-05-07">2020</span> <i title="IACR Transactions on Symmetric Cryptology"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/ctjq6cpl7vg4pncvotyslbx6ve" style="color: black;">IACR Transactions on Symmetric Cryptology</a> </i> &nbsp;
Two dedicated ciphers were proposed in this framework: ForkAES based on the AES (and its tweakable variant Kiasu-BC), and ForkSkinny based on Skinny.  ...  In this paper, we present new cryptanalysis results on forkciphers. First we improve the previous attack on ForkAES in order to attack the full 10 rounds.  ...  ForkSkinny-128-256 when used with a 256-bit key.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.13154/tosc.v2020.i1.233-265">doi:10.13154/tosc.v2020.i1.233-265</a> <a target="_blank" rel="external noopener" href="https://dblp.org/rec/journals/tosc/BariantDL20.html">dblp:journals/tosc/BariantDL20</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/zwgafu35gjbvxpxtqnztifazia">fatcat:zwgafu35gjbvxpxtqnztifazia</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20200527194639/https://tosc.iacr.org/index.php/ToSC/article/download/8564/8135" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/94/2f/942f4444fad86a6aa9ddef4d1ce15dec8390009c.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.13154/tosc.v2020.i1.233-265"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> Publisher / doi.org </button> </a>

Bringing secure Bitcoin transactions to your smartphone

Davide Frey, Marc X. Makkes, Pierre-Louis Roman, François Taïani, Spyros Voulgaris
<span title="">2016</span> <i title="ACM Press"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/zrhggpuojjeehp4lbf25rnlyfq" style="color: black;">Proceedings of the 15th International Workshop on Adaptive and Reflective Middleware - ARM 2016</a> </i> &nbsp;
Brittany Loire (UBL), by the French National Research Agency (ANR) project SocioPlug under contract ANR-13-INFR-0003 (http://socioplug.univ-nantes.fr) and by the Dutch national research program COMMIT/ (a  ...  The hashing function HASH is the one used in Bitcoin, i.e., HASH(x) = SHA-256(SHA-256(x)), noted SHA-256 2 throughout this document.  ...  We consider a sharding policy that splits the UTxO set in 2 k shards by looking at the first k bits of a coin hash.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1145/3008167.3008170">doi:10.1145/3008167.3008170</a> <a target="_blank" rel="external noopener" href="https://dblp.org/rec/conf/middleware/FreyMRTV16.html">dblp:conf/middleware/FreyMRTV16</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/4hwdznckczgvvjh7bwq64otvda">fatcat:4hwdznckczgvvjh7bwq64otvda</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20180721232959/https://hal.inria.fr/hal-01384461/document" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/8e/46/8e46d48b50fbd6d53f3e7e0d6b1f497a740025f5.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1145/3008167.3008170"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> acm.org </button> </a>

Collision Attack on Grindahl

Thomas Peyrin
<span title="2014-05-28">2014</span> <i title="Springer Nature"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/7jmi32x7o5hfnpkgh2irnuqpim" style="color: black;">Journal of Cryptology</a> </i> &nbsp;
Then, by a careful utilization of the freedom degrees inserted every round, and with a work effort of approximatively 2 112 hash computations, an attacker can generate a collision for the full 256-bit  ...  Grindahl is a hash function proposed at FSE 2007 that inspired several SHA-3 candidates.  ...  This 256-bit hash function does not use the famous Merkle-Damgård paradigm nor the Davies-Meyer construction and the designers preferred a new configuration: an internal state much bigger than the output  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/s00145-014-9186-9">doi:10.1007/s00145-014-9186-9</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/7igynccekfh3vbo5mdzthyp5z4">fatcat:7igynccekfh3vbo5mdzthyp5z4</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20170716002941/https://eprint.iacr.org/2016/295.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/a4/68/a468fd5c682c36197e5c015a9156488dd95b6f1a.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/s00145-014-9186-9"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> springer.com </button> </a>

A Survey on PoW-based Consensus

Alessio Meneghetti, Massimiliano Sala, Daniele Taufer
<span title="2020-01-01">2020</span> <i title="International Association for Educators and Researchers (IAER)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/xjw6kdfs6vck3oyp24amno6mza" style="color: black;">Annals of Emerging Technologies in Computing</a> </i> &nbsp;
We provide a historical overview of proof-of-work techniques and the fields in which it plunges its roots.  ...  The SHA-256 function produces outputs of length L = 256 bits and is used in Bitcoin [12] and related cryptocurrencies such as Bitcoin Cash, Counterparty, MazaCoin, Namecoin and by hybrid systems such  ...  We list now some hashcash-based PoW-protocols employed by modern cryptocurrencies, emphasizing their peculiarities. • SHA-256 This function belongs to the Secure Hash Algorithms (SHA) family designed in  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.33166/aetic.2020.01.002">doi:10.33166/aetic.2020.01.002</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/mhpnq5g4rffm7os2v723hv4qv4">fatcat:mhpnq5g4rffm7os2v723hv4qv4</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20200102005949/http://aetic.theiaer.org/archive/v4/v4n1/p2.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/e8/e6/e8e6fdd407287874498c38e6f79f30bfe7dd26dd.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.33166/aetic.2020.01.002"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> Publisher / doi.org </button> </a>
&laquo; Previous Showing results 1 &mdash; 15 out of 674 results