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NUSH分组密码的线性密码分析 被引量:3
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作者 吴文玲 冯登国 《中国科学(E辑)》 CSCD 北大核心 2002年第6期831-837,共7页
NUSH是NESSIE公布的17个候选分组密码之一.对不同分组长度和密钥规模的NUSH进行了线性密码分析,每一种攻击的复杂度δ由它所需的数据复杂度ε和处理复杂度η组成,记为δ=(ε,η).对于分组长度为64 bit的NUSH,当密钥为128 bit时,3种攻击... NUSH是NESSIE公布的17个候选分组密码之一.对不同分组长度和密钥规模的NUSH进行了线性密码分析,每一种攻击的复杂度δ由它所需的数据复杂度ε和处理复杂度η组成,记为δ=(ε,η).对于分组长度为64 bit的NUSH,当密钥为128 bit时,3种攻击的复杂度分别为(258,2124)、(260,278)和(262,255);当密钥为192 bit时,3种攻击的复杂度分别为(258,2157)、(260,296)和(262,258);当密钥为256 bit时,3种攻击的复杂度分别为(258,2125)、(260,278)和(262,253).对于分组长度为128 bit的NUSH,当密钥为128bit时,3种攻击的复杂度分别为(2122,295)、(2124,257)和(2126,252);当密钥为192 bit时,3种攻击的复杂度分别为(2122,2142)、(2124,275)和(2126,258);当密钥为256 bit时,3种攻击的复杂度分别为(2122,2168)、(1224,281)和(2126,264).对于分组长度为256 bit的NUSH,当密钥为128 bit时,两种攻击的复杂度分别为(2252,2122)和(2254,2119);当密钥为192 bit时,两种攻击的复杂度分别为(2252,2181)和(2254,2177);当密钥为256 bit时,两种攻击的复杂度分别为(2252,2240)和(2254,2219).这些结果显示NUSH对线性密码分析是不免疫的,而且密钥规模的增大不能保证安全性的提高. 展开更多
关键词 nush 分组密码 线性密码分析 线性逼近 密钥规模 分组长度 密码学
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Nutrient-stimulated Hormone-based Therapies: A New Frontier in the Prevention and Management of MASHassociated Hepatocellular Carcinoma
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作者 Richard Phillips Yuk Ting Ma +2 位作者 Wasim Hanif Tahir Shah Shivan Sivakumar 《Journal of Clinical and Translational Hepatology》 2025年第12期1060-1066,共7页
Metabolic dysfunction-associated steatotic liver disease(MASLD)is now the most common chronic liver disease in the Western world,driven by obesity,insulin resistance,and systemic inflammation.Its progressive form,meta... Metabolic dysfunction-associated steatotic liver disease(MASLD)is now the most common chronic liver disease in the Western world,driven by obesity,insulin resistance,and systemic inflammation.Its progressive form,metabolic dysfunction-associated steatohepatitis(MASH),can culminate in cirrhosis and hepatocellular carcinoma(HCC).While lifestyle modification remains central to MASLD management,there is growing interest in pharmacological interventions,particularly nutrient-stimulated hormone-based therapies(NuSHs),such as GLP-1 receptor agonists.NuSHs exert metabolic and anti-inflammatory effects primarily via weight loss and improved insulin sensitivity.Emerging clinical data support their efficacy in resolving MASH without worsening fibrosis.However,benefits in cirrhotic patients are less evident,suggesting greater utility in early intervention.Observational studies and clinical trials suggest a reduction in liver-related morbidity with GLP-1 receptor agonist use,though fibrosis regression remains inconsistent.Preclinical models indicate that NuSHs may also reduce MASH-related HCC incidence and tumor burden,likely through systemic metabolic improvements rather than direct antineoplastic action.Observational human data following bariatric surgery reinforce this link,suggesting that weight loss itself plays a key preventive role.Herein,we propose that NuSHs are promising candidates for MASH-related HCC prevention.We provide mechanistic suggestions for how this may occur.Furthermore,incorporating NuSHs into the post-locoregional treatment pathway for HCC may delay the need for systemic anti-cancer therapies,improve immunotherapy synergy and transplant eligibility,and even slow disease progression through reversal of carcinogenic drivers.Future studies are needed to target oncological endpoints and clarify immunometabolic mechanisms to guide the integration of NuSHs into MASLD treatment algorithms. 展开更多
关键词 Metabolic dysfunction-associated steatohepatitis MASH Hepatocellular carcinoma HCC MASH-HCC Nutrient-stimulated hormone-based therapy nush Metabolic dysfunction-associated steatotic liver disease MASLD GLP-1 receptor agonist GLP-1RA
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