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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, September 14, 2007

Semicon Taiwan goes to the final day on September 14, one of exhibitors Siemens AG imported containers named “exiderdome” to Taiwan and held an exhibition at A13 Parking Lot in Xinyi District, Taipei City for professionals from some industries such as automation, semiconductor, and electronics experiencing the advantages on automation solutions by Siemens.

For this special exhibition, Wikinews Reporter Brock interviewed Stephen Huang (International Account Manager of Automation and Drives Department, Siemens Limited) and Ken Cheng (Director of Automation and Drives Department, Siemens Limited) for information on this exhibition.

Sunday, December 4, 2005

The US commander of the Multinational Security Transition Command in Iraq said that he had no knowledge of the National Strategy for Victory in Iraq document released by the US President. This, along with speculation that the document was chiefly authored by a public opinion analyst recruited by the White House have led to some critics claiming that the drafted ‘strategy’ is targeting US public opinion, not the Iraqi insurgency.

The military, political and economic strategy for Iraq, outlined last week by President Bush in a speech at the Naval Academy in Annapolis, Maryland, was based by a 35-page document titled the National Strategy for Victory in Iraq. A metadata tag on the document posted on the White House website identified its author as a computer user ‘feaver_p’. It is believed to refer to Dr. Peter D. Feaver, a special advisor to the National Security Council staff.

A political scientist at Duke University, Dr. Feaver analyzed public opinion polls about the Iraq war and attitudes towards war casualties. Dr. Feaver found that US public opinion will support military engagement abroad, despite growing casualties, provided that the public believed that the war was being fought for a worthy cause and that victory was achievable.

Dr. Feaver was one of the people who helped “conceive and draft” the document, according to a White House staffer, who said that Meghan L. O’Sullivan, the deputy national security adviser for Iraq and Afghanistan, and her staff played a larger role. White House officials confirmed to the New York Times that the document’s “creation and presentation strongly reflected the public opinion research”.

The document “reflects the broad interagency effort under way in Iraq” according to an NSC spokesman Frederick Jones and had received major contributions from the Departments of Defense, State, Treasury and Homeland Security, as well as the director of National Intelligence.

On Friday, Lt. Gen. Martin Dempsey, whose Multinational Security Transition Command is responsible for building Iraq’s security forces, told reporters that he had seen the strategy document for the first time when it was released to the public. The White House had said that not all senior officers in Iraq had necessarily seen the document and Gen. Peter Pace, the chairman of the Joint Chiefs of Staff, has said that he had read and critiqued the document on several occasions.

Earlier, replying to questions about the President’s strategy, White House press secretary Scott McClellan said that the document was an “inter-agency document” and an “unclassified version” of the administrations “strategy for victory in Iraq” published for the public to view.

Christopher F. Gelpi, of Duke University, who co-authored Dr. Feaver’s work titled Casualty Sensitivity and the War in Iraq, stated, “The Pentagon doesn’t need the president to give a speech and post a document on the White House Web site to know how to fight the insurgents. The document is clearly targeted at American public opinion.” In their work together, Gelpi, Feaver and Reifler found that the most important factor which determines the US public’s tolerance for US military deaths in a war is the public’s beliefs about the likelihood of success, and a secondary, but still important, factor, was found to be the public’s belief in the rightness of a war.

Sunday, October 7, 2007

Cecile Willert is running for the Green Party of Ontario in the Ontario provincial election, in the Ajax—Pickering riding. Wikinews’ Nick Moreau interviewed her regarding her values, her experience, and her 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.

Friday, March 27, 2015

The Supreme Court of the United Kingdom have concluded yesterday that the government must release a series of 27 letters sent by Prince Charles to government ministers and that attempts to prevent their publication under the Freedom of Information Act 2000 have been unlawful.

The letters were sent to ministers of the previous Labour government in the years of 2004 and 2005 and contain advocacy that has been described as “particularly frank”. The Guardian newspaper have been attempting to have these letters released using freedom of information legislation for ten years.

In 2012, the Attorney General Dominic Grieve blocked the publication of the letters despite a ruling from the information tribunal that the release of the letters is in the public interest. Grieve’s statement at the time argued Prince Charles’ correspondence was “of very considerable practical benefit” to his “preparations for kingship” as “such correspondence and dialogue will assist him in fulfilling his duties”. Grieve went on to argue correspondence of this nature “must be under conditions of confidentiality” otherwise both the Prince and government ministers “will feel seriously inhibited from exchanging views candidly and frankly”. The statement from Grieve asserts “The Prince of Wales is party-political neutral” and “it is highly important that he is not considered by the public to favour one political party or another”, but that if the letters were released there would be the risk he would be “viewed by others as disagreeing with government policy” and “such perception would be seriously damaging to his role as future Monarch, because if he forfeits his position of political neutrality as heir to the Throne, he cannot easily recover it when he is King.”

Lord Neuberger, in giving the majority decision of the court, stated the Attorney General could not veto the release “merely because he, a member of the executive, considering the same facts and arguments, takes a different view from that taken by the tribunal or court”. Neuberger said the legislation’s veto power did not go so far as to “enable a member of the executive to over-ride a judicial decision” and that the Attorney General “proceeded on the basis of findings which differed radically from those made by the upper tribunal without real or adequate explanation.”

Appeal judges had subsequently ruled this veto on the part of the Attorney General to be unlawful, and the further appeal by the government to the Supreme Court has been unsuccessful. The government is required to release the documents within 30 days, although it is possible some of the contents may be redacted.

A spokeswoman for the Prince of Wales stated the ruling is “a matter for the Government” but that the Prince is “disappointed the principle of privacy has not been upheld.”

Prime Minister David Cameron said the decision was “disappointing”: “This is about the principle that senior members of the Royal Family are able to express their views to government confidentially. I think most people would agree this is fair enough.”

A spokeswoman for Cameron elaborated: “The prime minister has been very clear this morning it is a deeply disappointing judgment. He doesn’t agree with it. He thinks what’s at stake here is an important principle about the ability of senior members of the royal family to express their views to government confidentially. He thinks that’s a principle that we should uphold. So while we have taken steps in this parliament to strengthen the ability to do that through the FOI act, if there needs to be more done to make that clear, then the prime minister is clear those steps should happen in the next parliament.”

The legislation was already amended in 2010 to make it so that correspondence and other matters related to the Royal family are exempt from further freedom of information requests. Graham Smith, from Republic, which campaigns for an elected head of state, argues there needs to be greater transparency over the Royal Family’s affairs: “The court has defended democratic principles over the interests of the royal family and that needs to be enshrined in law. David Cameron’s response is worrying because he says he wants to tighten up the veto.”

The Labour MP Paul Flynn raised the possibility the ruling might have consequences for Charles’ suitability to be King: “If there are serious questions about the suitability of Prince Charles as a monarch there could be a question in the public mind about whether to skip a generation. The attorney general already said the main justification for keeping the letters secret was they would hinder Charles’s ability to be a successful monarch.”

Friday, April 9, 2010

British Airways (BA) and the Spanish airline Iberia have signed a merger deal, which will create one of the largest air carrier groups in the world.

The two announced the merger yesterday, and said that the deal, which has been expected for a long time, is to be implemented by the end of 2010. The move will make a group with a market value of US$8 billion. The deal has been negotiated since July 2008.

Under the plan, both companies keep their own brands and operations, but will be owned by International Airlines Group, a new holding company. It will be listed in London, but taxed in Spain.

The airlines believe the merger will save $530 million annually. In February, BA reported a loss of $102.4 million for the final three quarters of 2009, whilst Iberia posted an operating loss of $629 million.

Meanwhile, investors in BA will receive an IAG share for every BA share they own, and stockholders in Iberia 1.0205 shares for each share in the Spanish airline; thus, BA shareholders will take 55% of IAG.

“The merged company will provide customers with a larger combined network,” commented BA chief executive Willie Walsh. “It will also have greater potential for further growth by optimising the dual hubs of London and Madrid and providing continued investment in new products and services.”

Meanwhile, Iberia chief executive Antonio Vázquez remarked: “This is an important step in creating one of the world’s leading global airlines that will be better equipped to compete with other major airlines and participate in future industry consolidation.”

Independent aviation specialist James Halstead said he believed the merger was necessary for BA to remain competitive amongst other European air carriers. “BA’s unique position at Heathrow could help it survive for a short while, but in the long run it needs more than just Heathrow. The main point of the Iberia deal is to be able to cut costs and put the combined company in the position that Air France-KLM and Lufthansa are already in,” he said, quoted by The Independent.