Design and implementation of authentication method for accessing web service in .NET environment

Práce se zabývá problematikou autentizačních metod pro přístup k webovým službám. V první části jsou vysvětleny autentizační metody a možná bezpečnostní rizika. V druhé části práce je popsán návrh a realizace vlastní autentizace k webové službě v prostředí .NET.Work deals with the authentication methods for access to Web services. The first part of the authentication methods are explained and possible safety risks. The second part describes the design and implementation of custom authentication Web service environment.. NET

Cryptographic modules for network protection

Práce se zabývá problematikou virtuálních privátních sítí (VPN) a autentizace. V první části jsou vysvětleny moderní kryptografické metody, problematika autentizace, autentizační předměty a také problematice VPN. V druhé části práce je popsán návrh a realizace vlastní bezpečné sítě založené na technologiích firmy SafeNet.This work deals with virtual private network (VPN) and authentication. The first section gives the modern cryptographic methods, the work of dealing with problems of authentication and authentication of objects and the issue of VPN. The second part describes the implementation of its own secure network-based technology company SafeNet.

Cryptographic modules for network protection

This work deals with virtual private network (VPN) and authentication. The first section gives the modern cryptographic methods, the work of dealing with problems of authentication and authentication of objects and the issue of VPN. The second part describes the implementation of its own secure network-based technology company SafeNet

Global Impact of the COVID-19 Pandemic on Cerebral Venous Thrombosis and Mortality

BACKGROUND AND PURPOSE: Recent studies suggested an increased incidence of cerebral venous thrombosis (CVT) during the coronavirus disease 2019 (COVID-19) pandemic. We evaluated the volume of CVT hospitalization and in-hospital mortality during the 1st year of the COVID-19 pandemic compared to the preceding year. METHODS: We conducted a cross-sectional retrospective study of 171 stroke centers from 49 countries. We recorded COVID-19 admission volumes, CVT hospitalization, and CVT in-hospital mortality from January 1, 2019, to May 31, 2021. CVT diagnoses were identified by International Classification of Disease-10 (ICD-10) codes or stroke databases. We additionally sought to compare the same metrics in the first 5 months of 2021 compared to the corresponding months in 2019 and 2020 (ClinicalTrials.gov Identifier: NCT04934020). RESULTS: There were 2,313 CVT admissions across the 1-year pre-pandemic (2019) and pandemic year (2020); no differences in CVT volume or CVT mortality were observed. During the first 5 months of 2021, there was an increase in CVT volumes compared to 2019 (27.5%; 95% confidence interval [CI], 24.2 to 32.0; P CONCLUSIONS: During the 1st year of the COVID-19 pandemic, CVT hospitalization volume and CVT in-hospital mortality did not change compared to the prior year. COVID-19 diagnosis was associated with higher CVT in-hospital mortality. During the first 5 months of 2021, there was an increase in CVT hospitalization volume and increase in CVT-related mortality, partially attributable to VITT