Its covid lockdown. Hello and welcome to the programme. I am Live In Tokyo for day 10 of the Olympic Games. We start our Coverage Today with news that the czech Republic And Poland have offered to help a belarusian sprinter who was ordered home from the games by her countrys olympic officials. Krystsina tsimanouskaya was due to compete in the womens 200m event on monday. But after posting a Video Complaining about being entered into another race at short notice, she says she was told to pack and taken to the airport. She then contacted police, and uploaded a video on Social Media, appealing for help, and the flight took off without her on board. Ramzan karmali reports. Surrounded by police and safe. That is what belarusian Athlete Krystsina Tsimanouskaya believes for now. The sprinter was due to be honest darting blocks later today but says she was forced to pack before being taken to the airport in tokyo against her will. Translation i asked the International Olympic Committee for hel
and ameshia cross, former comms advisor to president obama and now a democratic strategist. also on the programme, after the first group of migrants spent their first night on board the controversial bibby stockholm last night but is the public on board with rishi sunak s tough migrant policy? and vegan products have been filling the supermarket shelves in recent years but new data shows the cost of living crisis is turning people back to more affordable meat products. now, to the crucial summit on the security of the amazon rainforest. more on that breaking story coming to us from northern ireland, the names of serving police officers in northern ireland have been mistakenly published online by the police force in what appears to be a major data breach. work locations, names, initials, they ve all been divulged, although important to stress not the home addresses of these officers. let s cross live to these officers. let s cross live to the newsroom and speak to our c
Secret leader election in consensus could protect leaders from Denial of Service (DoS) or bribery attacks, enhancing the blockchain system security. Single Secret Leader Election (SSLE), proposed by Boneh et al., supports electing a single random leader from a group of nodes while the leader’s identity remains secret until he reveals himself. Subsequent research endeavors have introduced distinct approaches to realize SSLE, yet most of these solutions consume relatively high communication complexity. In this paper, we propose an extended SSLE scheme, Secret Multiple Leaders Election (SMLE), based on linkable membership proof. A general SMLE scheme supports the one-time election of multiple consecutive secret leaders while reducing the average communication cost of a single leader election to constant complexity. In particular, SMLE is proven to satisfy a newly proposed consistent unpredictability property for each leader. Specifically, two concrete SMLE constructions are constructed.