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Wednesday, February 16, 2005According to computer security expert Bruce Schneier, a widely-used cryptography algorithm, known as SHA-1, has been broken by three researchers at Shandong University in China. Designed by the US intelligence agency NSA, SHA-1 has been adopted as an official US government standard and has become widely-used in security applications worldwide, notably digital signatures. The three female researchers, Xiaoyun Wang, Yiqun Lisa Yin, and Hongbo Yu, have reduced the amount of time needed to find two documents with the same signature by a factor of more than 2000.

The SHA-1 algorithm is used to compute a short string of numbers, known as a hash, for any digital document. The algorithm is constructed such that small changes in the document cause the hash to change drastically. By this means, the hash can be used to verify that a document has not been tampered with.

The attack that Schneier describes is a “collision attack,” rather than the more useful “pre-image” attack. In a pre-image attack, the codebreaker is able to find a document with different contents that matches an existing hash and so can claim an existing signature was on something else. In the somewhat less valuable “collision attack,” the codebreaker is able to devise two documents that both have some particular hash. A adversary might use this to claim that an altered document is the original on the grounds that they have the same hash. A crafty adversary might also be able to trick someone into signing an innocuous document, one of a pair from a collision. The other document, which might not be as harmless, would then also appear to have been signed by the same person. If collisions can be found for SHA-1, then digital signatures will no longer vouch for a document’s authenticity.

The attack, for now, is more of a theoretical than a practical kind: it would currently take thousands of years on a modern personal computer, and would still be slow even if a large number of computers were used in parallel.

Xiaoyun Wang is currently a professor at Shandong University, while Hongbo Yu is a doctoral candidate at the same institution. Yiqun Lisa Yin is currently a visiting researcher at the Princeton Architecture Laboratory for Multimedia and Security (PALMS). Last year, Xiaoyun Wang and Hongbo Yu also took part in breaking a series of similar algorithms, including the widely used MD5 hash, as documented in their paper presented at the Crypto 2004 conference.

Officials from the National Institute of Standards and Technology (NIST) have recently recommended dropping SHA-1 in favor of stronger, slower algorithms, such as SHA-256, Federal Computer Week reported on February 7, 2005, just 7 days before Schneier announced the SHA-1 break. Despite deprecating SHA-1, William Burr, the head of NIST’s security technology group, said that “SHA-1 is not broken, and there is not much reason to suspect that it will be soon.”

Friday, April 15, 2022

On Wednesday, heavy rains and resulting flooding were confirmed to have killed over 300 people in KwaZulu-Natal province on the eastern coast of South Africa, including the large port city of Durban.

The flooding delayed rescue efforts by the South African National Defence Force, though it managed to deploy some helicopters and personnel according to General Rudzani Maphwanya. Authorities were working to restore electricity to the area.

President Cyril Ramaphosa said: “This disaster is part of climate change. It is telling us that climate change is serious, it is here … We no longer can postpone what we need to do, and the measures we need to take to deal with climate change.”

eThekwini Metropolitan Municipality was heavily damaged. Mayor Mxolisi Kaunda said it was hard to reach power and water facilities. Sipho Hlomuka of the Executive Council for Co-operative Governance and Traditional Affairs in KwaZulu-Natal said: “The heavy rains have affected power lines in many municipalities with technical teams working around the clock to restore power.”

Monday, November 28, 2005

SpaceX called off the much-delayed inaugural launch of their new Falcon 1 rocket on Saturday from Kwajalein’s Omelek Island launch site. The intent was to launch the U.S. Air Force Academy’s FalconSat 2 satellite, which will monitor plasma interactions with the Earth’s upper atmosphere and magnetosphere.

The launch was delayed, then finally cancelled after an oxygen boil-off vent had accidentally been left open. The oxygen was unable to cool the helium pressurant, which then proceeded to evaporate faster than it could be replenished. A main computer issue, probably serious enough to cause a scrub on its own, was also discovered.

This long-anticipated flight was originally expected to be launched in January 2005, however a series of setbacks forced a series of delays, with the flight most recently scheduled to be in early 2006. It was intended to be launched from the Kwajalein atoll in the middle of the Pacific Ocean.

The maiden voyage was originally intended to launch from Vandenberg Air Force Base in California with a Naval Research Laboratory satellite and a Space Services Incorporated space burial payload.

Friday, January 26, 2018

Fire broke out on Friday morning and destroyed the bottom two floors of a six-story hospital in Miryang, South Korea, killing at least 37 people, most of them elderly. More than a hundred injuries were reported, with eighteen people in critical condition. This is the highest death toll from fire in South Korea in almost a decade.

The fire is believed to have started at about 7:30 local time, according to fire chief Choi Man-woo. It originated on the ground floor in the emergency room as per various officials. The hospital has 98 beds and a medical staff of about 35, and specializes in long-term care of elderly patients. It adjoins a nursing home, all of whose 94 residents were evacuated. Staff carried some patients out of the hospital on their backs.

One patient, Jang Yeong-jae, who told his story to JoongAng Ilbo, said he escaped by removing a screen from a window to get to a ladder placed by firefighters. He described people “running around in panic, falling over and screaming as smoke filled the rooms”. The majority of the victims died from smoke inhalation and are believed to be elderly, said the head of the city’s public hospital, Chun Jae-kyung. A doctor, a nurse, and a nursing assistant have died, according to the fire service; it took three hours to put out the fire.

In a press briefing, Seok Gyeong-sik, the director of the hospital, apologized to patients and their families. Son Kyung-chul, its chairman, stated that there were no sprinklers because the facility was small. Sprinklers are being installed in the nursing home, where a new law requires them by June 30.

Last month, 29 people died in a fire in a gym in Jecheon; the owner and the manager were arrested for safety violations. In 2014, a blaze in a nursing home in Jangseong left 21 dead. The President of South Korea, Moon Jae-in, responded to the Friday fire by calling an emergency meeting of his staff, and promised that the cause would be found rapidly “to prevent the recurrence of the fire in the future”.

Tuesday, October 2, 2007

David McGruer is running for the Freedom Party of Ontario in the Ontario provincial election, in the Ottawa-Orleans riding. Wikinews’ Nick Moreau interviewed him regarding his values, his experience, and his campaign.

Stay tuned for further interviews; every candidate from every party is eligible, and will be contacted. Expect interviews from Liberals, Progressive Conservatives, New Democratic Party members, Ontario Greens, as well as members from the Family Coalition, Freedom, Communist, Libertarian, and Confederation of Regions parties, as well as independents.

Tuesday, June 27, 2006

Australian Minister for Vocational Education and Training, Gary Hardgrave has announced the government will provide AU$15.8 million to establish an Australian Technical College in North Adelaide. The minister said the government was entering into a partnership with the Archdiocese of Adelaide and consortium of industrial and manufacturing companies.

The North Adelaide college will be located in Elizabeth and be operated as an independent non-government school. The college is one of 25 to be established across the country.

Enrolments at the college will begin in 2007 and will offer courses in areas where identified skills shortages exist in the North Adelaide region, specifically – engineering, construction, electronics and cooking.

Mr Hardgrave said that the proposed college had been popular among the North Adelaide business community. “This important initiative has been well received by North Adelaide business and industry, and will help to address skills needs and provide opportunities for those in greatest need, including a lot of Indigenous students in the region,” Mr Hardgrave said.

“The fact that this College is being led by local employers, local government and other key stakeholders, means it will be truly industry and community driven,” he said.

Australian Technical Colleges were established to cater for year 11 and 12 students who wish to do an apprenticeship as part of their school education.

The Australian Education Union has expressed a number of concerns about the model put forward by the government. In a report, they claim that trade facilities at TAFE colleges (operated by state governments) will deteriorate as funding is diverted to the ATCs. The union is also concerned that ATCs are supposed to be selective VET schools. According to the union they will have selective entry and preferential funding. It is feared that teachers will be lured away from schools and TAFE colleges to higher paid positions in ATCs.

The Education Union suggested that the government invest in schools that already offer vocational education programs.

Sunday, April 24, 2005

New York Stock Exchange (NYSE) announced last Wednesday that it has agreed definitively to merge with Chicago-based Archipelago Exchange (ArcaEx) and form a new publicly traded, for-profit company known as NYSE Group. This announcement was followed two days later by NASDAQ®, which independently announced a definitive agreement to purchase Instinet Group.

Archipelago and Instinet are innovative e-trading (electronic trading) companies, and formerly were the two largest American rivals to NYSE and NASDAQ, in recent years taking increasingly large portions of their market share. The Securities and Exchange Commission (SEC) and other regulatory agencies still have to review and approve the transactions, particularly with respect to US securities law and antitrust law, in order to ensure that the marketplace remains lawful and competitive.

Other pending issues for NASDAQ include obtaining the approval of Instinet shareholders, as well as customary closing conditions. NYSE must obtain the approval of its members and Archipelago shareholders.

These changes, a reaction to increased e-trading competition and a changed regulatory environment, will result in NASDAQ and NYSE trading each other’s shares and attempting to grab market share, which many hope will drive down transaction costs and ultimately benefit consumers. However, at least one commentator, Dan Ackman writing in Forbes, has noted that the trading commission at the NYSE currently averages less than a nickel (US$0.05) per share, and was less enthusiastic about potential efficiency gains from electronic trading at the exchange.

The transactions are also intended to make the two leading American stock exchanges more globally competitive with such exchanges as the London Stock Exchange, the Frankfurt Stock Exchange, the Toronto Stock Exchange, and the Australian Stock Exchange located in Sydney.