Silent Skype calls can hide secret messages

Got a secret message to send? Say it with silence. A new technique can embed secret data during a phone call on Skype. "There are concerns that Skype calls can be intercepted and analysed," says Wojciech Mazurczyk at the Institute of Telecommunications in Warsaw, Poland. So his team's SkypeHide system lets users hide extra, non-chat messages during a call.

Mazurczyk and his colleagues Maciej Karaś and Krysztof Szczypiorski analysed Skype data traffic during calls and discovered an opportunity in the way Skype "transmits" silence. Rather than send no data between spoken words, Skype sends 70-bit-long data packets instead of the 130-bit ones that carry speech.

The team hijacks these silence packets, injecting encrypted message data into some of them. The Skype receiver simply ignores the secret-message data, but it can nevertheless be decoded at the other end, the team has found. "The secret data is indistinguishable from silence-period traffic, so detection of SkypeHide is very difficult," says Mazurczyk. They found they could transmit secret text, audio or video during Skype calls at a rate of almost 1 kilobit per second alongside phone calls.

The team aims to present SkypeHide at a steganography conference in Montpellier, France, in June.

If you would like to reuse any content from New Scientist, either in print or online, please contact the syndication department first for permission. New Scientist does not own rights to photos, but there are a variety of licensing options available for use of articles and graphics we own the copyright to.

All comments should respect the New Scientist House Rules. If you think a particular comment breaks these rules then please use the "Report" link in that comment to report it to us.

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Wong Kar Wai returns with new film "The Grandmaster"

BEIJING: Hong Kong director Wong Kar Wai's long-awaited martial arts film "The Grandmaster" was shown in public for the first time in Beijing on Sunday, after more than six years in production.

The film spans several decades of Chinese history to tell the story of legendary martial artist Yip Man, who went on to train Bruce Lee, and features lengthy battles between rival kung fu masters.

Wong, 54, is best known for his slow-burn drama in 2000, "In the Mood for Love".

His new film, packed with Chinese stars including Hong Kong actor Tony Leung and Beijing-born starlet Zhang Ziyi, appears well placed to capture the local audience.

In his first press appearance to promote the film, Wong was also confident that "The Grandmaster", which runs for over two hours in its current edit and is steeped in traditional martial arts culture, would be well received abroad.

"There is no such thing as a Western or Eastern audience... the elements of cinema are the same worldwide, although their expression is different," said Wong, wearing his trademark dark glasses.

The film, set to hit Chinese cinemas on Tuesday, follows its lead character through some of China's most tumultuous recent history including the Japanese invasion in the 1930s.

It has been delayed several times, amid rumours of extensive reshooting and injured actors, but Wong shrugged off claims that the filming had taken too long.

"It felt like three years of university... we didn't want filming to end," he said.

Leung, 50, who plays the eponymous "Grandmaster" and has also starred in several of Wong's most acclaimed films, praised his co-star Zhang, 33, for her persistence while filming long fight scenes, which they enacted themselves.

"I fought with her a lot of times," he said. "She was injured several times, and I knew it was tough for her, but it wasn't possible for me to fight less intensely."

Shanghai-born Wong, who was raised in Hong Kong, enveloped himself in Chinese martial arts while researching the film's script, travelling across the country to meet kung fu masters and historians, a process he described as "like discovering a completely new world".

He also defended the length of his final edit, which contains extended stretches of dialogue between the main characters.

"The film could have lasted four hours, but I deleted a lot of scenes... a one hundred and thirty minute film is normal these days," he said.

Wong made his international breakthrough in 1994 with "Chungking Express" and was the first Chinese director to sit on the jury at Cannes.

In February he will lead the jury of the Berlin film festival, which traditionally highlights Asian cinema.

- AFP/xq

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Armstrong's lawyer: No mea culpa talks

By Jillian Martin and Chelsea J. Carter

updated 1:06 PM EST, Sat January 5, 2013

STORY HIGHLIGHTS

• The New York Times report cites unnamed associates and doping officials in its report


• Cyclist's lawyer says his client was not in discussion with U.S. or world anti-doping agencies


• Armstrong was stripped of his seven Tour de France titles and banned for life


• Cyclist has repeatedly denied using banned performance-enhancing drugs

(CNN) -- Lance Armstrong's attorney denied his client was in discussion with the U.S. or world anti-doping agencies following a report by The New York Times that the disgraced cycling icon was contemplating publicly admitting he used illegal performance-enhancing drugs.

Attorney Tim Herman in an email to CNN Sports late Friday did not address whether Armstrong told associates -- as reported by the newspaper -- that he was considering the admission as a way to restore his athletic eligibility.

Armstrong was stripped of his seven Tour de France titles and banned for life last year after the U.S. Anti-Doping Agency found there was overwhelming evidence that he was directly involved in a sophisticated doping program.

Silence falls as Austin awaits Armstrong's 'last word'

Lance Armstrong over the years

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Disgraced cyclist Lance Armstrong is the subject of annual Bonfire Night celebrations in the British town of Edenbridge. An effigy of Armstrong will be burned during the celebrations, which mark the foiling of Guy Fawkes' "gunpowder plot" to blow up the Houses of Parliament and kill King James I in 1605. The Edenbridge Bonfire Soceity has gained a reputation for using celebrity "Guys," including Tony Blair, Jacques Chirac and Saddam Hussein.

Up in flames

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Armstrong has repeatedly and vehemently denied that he used banned performance-enhancing drugs as well as illegal blood transfusions during his cycling career.

In the past, Armstrong has argued that he took more than 500 drug tests and never failed. In its 202-page report that detailed Armstrong's alleged use of performance-enhancing drugs and blood transfusions, the USADA said it had tested Armstrong less than 60 times and the International Cycling Union conducted about 215 tests.

The agency did not say that Armstrong ever failed a test, but his former teammates testified as to how they beat tests or avoided the tests altogether.

The New York Times, citing unnamed associates and anti-doping officials, said Armstrong has been in discussions with USADA officials and hopes to meet with David Howman chief of the World Anti-Doping Agency. The newspaper said none of the people with knowledge of Armstrong's situation wanted to be identified because it would jeopardize their access to information on the matter.

Under World Anti-Doping Agency rules, an athlete who confesses to using performance-enhancing drugs may be eligible for a reinstatement.

Armstrong has been an icon for his cycling feats and celebrity, bringing more status to a sport wildly popular in some nations but lacking big-name recognition, big money and mass appeal in the United States.

He fought back from testicular cancer to win the Tour from 1999 to 2005. He raised millions via his Lance Armstrong Foundation to help cancer victims and survivors, an effort illustrated by trendy yellow "LiveSTRONG" wristbands that helped bring in the money.

The cyclist's one-time high-profile relationship with singer Sheryl Crow also kept him in the public eye.

But Armstrong has long been dogged by doping allegations, with compatriot Floyd Landis -- who was stripped of his 2006 Tour de France title after failing a drug test -- making a series of claims in 2011.

Armstrong sued the U.S. Anti-Doping Agency last year to stop its investigation of him, arguing it did not have the right to prosecute him. But after a federal judge dismissed the case, Armstrong said he would no longer participate in the investigation.

In October 2012, Armstrong was stripped of his titles and banned. Weeks later, he stepped down from the board of his foundation, Livestrong.

It is unclear whether Armstrong would face criminal prosecution for perjury should he confess. Armstrong was involved in several cases where he gave sworn testimony that he never used banned drugs.

Armstrong and his publicist did not immediately respond to a CNN requests late Friday and early Saturday for comment on The New York Times report.

Armstrong's demise: How he fell from grace

Part of complete coverage on

Lance Armstrong

updated 1:21 PM EDT, Mon October 22, 2012

Lance Armstrong's feat of winning seven consecutive Tour de France titles was like the demigod Hercules achieving his "Twelve Labors."

updated 3:40 PM EDT, Mon October 22, 2012

The International Cycling Union announces hat Lance Armstrong is being stripped of his seven Tour de France titles.

updated 11:45 AM EST, Thu December 6, 2012

Forty days alone in the wilderness was enough for Jesus, but Lance Armstrong is facing an altogether longer period of solitude.

updated 4:43 PM EST, Wed November 7, 2012

Lance Armstrong's fall from grace has left one of the cyclist's former sponsors not only "sad" -- but also without one of its biggest marketing tools.

updated 2:15 PM EDT, Fri October 26, 2012

Lance Armstrong has been asked to return all prize money from his seven annulled Tour de France victories by the sport's governing body.

updated 2:57 PM EDT, Wed October 24, 2012

For years, as Lance Armstrong basked in the glow of an adoring public, his critics frequently were banished to the shadows, dismissed by the cycling legend and his coterie as cranks or worse.

updated 4:55 PM EDT, Sat October 20, 2012

Connie and Daniel Roddy did all they could to support Livestrong, raising tens of thousands of dollars for the cancer charity. Now they want their money back.

updated 10:59 AM EDT, Mon October 22, 2012

Lou Hablas has supported Livestrong for years and worn the iconic yellow bracelet in honor of his uncle, stepmother and friends who have lost loved ones to cancer.

updated 5:44 AM EDT, Mon October 22, 2012

For years, Lance Armstrong carried a growing burden of doping accusations up increasingly steep hills, accumulating fans, wealth and respect along the way.

updated 9:38 AM EDT, Wed October 17, 2012

Johan Bruyneel has become the first victim of a U.S. government investigation into Lance Armstrong and doping.

updated 8:45 AM EDT, Wed October 17, 2012

The 84 million bright yellow wristbands distributed by Lance Armstrong's cancer charity have become a well-known symbol of strength and perseverance.

updated 5:45 AM EDT, Mon October 22, 2012

The systematic use of performance enhancing substances within Lance Armstrong's former U.S. Postal Service team has been detailed by one cyclist who resisted the temptation to dope.

updated 9:57 PM EDT, Wed October 10, 2012

Cyclist Lance Armstrong was part of "the most sophisticated, professionalized and successful doping program that sport has ever seen."

updated 5:53 PM EDT, Sat October 13, 2012

A former teammate of Lance Armstrong says there was no question why U.S. Postal Service team members doped during big races.

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Syrian president to give speech

BEIRUT Syrian President Bashar Assad will deliver a speech on Sunday in a rare address to the nation, state media said, as rebels fighting to topple his embattled regime pressed ahead with an offensive on the capital.

The official SANA news agency said in a brief statement Saturday that Assad will speak about the latest developments in Syria. The speech would be the first by the leader since June, and comes amid intense fighting between government troops and rebels on the outskirts of Damascus.

Assad has rarely spoken in public since the uprising against him began in March 2011. In each of his previous speeches and interviews, the president has dug in his heels even as Western powers have moved to boost the opposition in Syria's civil war.

In his last public comments, Assad vowed in an interview with Russia Today on Nov. 8 that he would "live and die in Syria."

Fighting has raged for weeks in the neighborhoods and towns around Damascus that have been opposition strongholds since the Syrian revolt began. The uprising started with peaceful protests but morphed into a civil war that has killed more than 60,000 people, according to a recent United Nations recent estimate.

The rebels are trying to push through the government's heavy defenses in Damascus, prompting the regime to unleash a withering assault on the suburbs that has included intense barrages by artillery and warplanes.

Diplomatic efforts to end the Syrian crisis have failed so far to bring an end to the bloodshed, although the international community continues to push for a peaceful settlement.

On Saturday, Saudi Arabia's Foreign Minister Saud al-Faisal told reporters after a meeting with his Egyptian counterpart in Riyadh that there should be an immediate end to the bloodshed in Syria and called for a peaceful political transition.

Play Video

A savage week in Syria

Saudi Arabia and Egypt have both called on Assad to step down, and Riyadh has also been an outspoken supporter of the rebels.

The president of the U.N. Security Council said Thursday there are important developments in efforts to find a diplomatic solution to the 21-month conflict in Syria and there could be another U.S.-Russia meeting with international envoy Lakhdar Brahimi next week.

Brahimi and Russian Foreign Minister Sergey Lavrov both said after their meeting last Saturday that the Syrian crisis can only be settled through talks, while admitting that neither the government nor the opposition has shown a desire to compromise. Neither official hinted at a possible solution that would persuade the two sides to agree to a ceasefire and sit down for talks about a political transition.

But Lavrov said Syrian President Bashar Assad has no intention of stepping down — a key opposition demand — and it would be impossible to try to persuade him otherwise. Russia is a close ally of the Syrian government, and has shielded it from punitive measures at the U.N.

It was not clear what kind of initiative, if any, Assad may offer in his speech.

Meanwhile the violence continued unabated Saturday.

Rebels and government troops clashed in suburbs south of Damascus, including Harasta and Daraya, the Britain-based Syrian Observatory for Human Rights said. Fighting in Daraya alone left 10 dead, including six rebels, according to the Observatory, which relies on reports by activists on the ground.

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Gun Show Near Newtown Goes on Despite Anger

A little more than 40 miles from Sandy Hook Elementary School, where last month 20 first graders and six staff members were massacred, gun dealers and collectors alike ignored calls to cancel a gun show, and gathered for business in Stamford, Conn.

Four other gun shows with an hour of Newtown, Conn., recently cancelled their events in the wake of the shootings, when 20-year-old Adam Lanza broke in to the elementary school with a semi-automatic assault rifle and three other guns.

The organizers in Stamford emphasized their show only displayed antique and collectible guns, not military style assault weapons like the one used by Lanza in Sandy Hook.

Still, Stamford Mayor Michael Pavia had called for the show to close its doors, calling it "insensitive" to hold so close to the murders.

Gun show participant Sandy Batchelor said he wasn't sure about whether going ahead with the show was "insensitive," but said the shooter should be blamed, not the weapons he used.

"I don't have a solid opinion on [whether it is insensitive]," Batchelor said. "I'm not for or against it. I would defend it by saying it wasnt the gun."

In nearby Waterbury, the community cancelled a show scheduled for this weekend.

"I felt that the timing of the gun show so close to that tragic event would be in bad taste," Waterbury Police Chief Chief Michael J. Gugliotti said.

National Rifle Association News Conference Interrupted by Protesters Watch Video

Gugliotti has halted permits for gun shows, saying he was concerned about firearms changing hands that might one day be used in a mass shooting.

Across the state line in White Plains, N.Y, Executive Rob Astorino also canceled a show, three years after ending a had that had been in place since the 1999 Columbine High School shooting in Colorado. He said he felt the show would be inappropriate now.

But across the country, farther away from Connecticut, attendance at gun shows is spiking, and some stores report they can hardly keep weapons on their shelves with some buyers fearful of that the federal government will soon increase restrictions on gun sales and possibly ban assault weapons altogether.

"We sold 50-some rifles in days," said Jonathan O'Connor, store manager of Gun Envy in Minnesota.

President Obama said after the Sandy Hook shooting that addressing gun violence would be one of his priorities and Rep. Nancy Pelosi, D-Calif., said she would introduce an assault weapons ban this month.

But it is not just traditional advocates of gun control that have said their need to be changes in gun laws since the horrific school shooting.

Republican Sen. Kay Bailey Hutchison of Texas and Virginia Sen. Mark Warner, a Democrat but a long-time opponent of gun control who like Hutchison has received an A rating from the NRA, have both come out in support of strengthening gun laws.

In Stamford, gun dealer Stuart English said participants at the gun show there are doing nothing wrong.

"I have to make a living. Life goes on," gun dealer Stuart English said.

ABC News asked English, what he thought about the mayor of Stamford calling the show "insensitive."

"He's wrong," English said. "This is a private thing he shouldn't be expressing his opinion on."

If you have a comment on this story or have a story idea, you can tweet this correspondent @greenblattmark.

The Associated Press contributed to this report.

Read More..

Silent Skype calls can hide secret messages

Got a secret message to send? Say it with silence. A new technique can embed secret data during a phone call on Skype. "There are concerns that Skype calls can be intercepted and analysed," says Wojciech Mazurczyk at the Institute of Telecommunications in Warsaw, Poland. So his team's SkypeHide system lets users hide extra, non-chat messages during a call.

Mazurczyk and his colleagues Maciej Karaś and Krysztof Szczypiorski analysed Skype data traffic during calls and discovered an opportunity in the way Skype "transmits" silence. Rather than send no data between spoken words, Skype sends 70-bit-long data packets instead of the 130-bit ones that carry speech.

The team hijacks these silence packets, injecting encrypted message data into some of them. The Skype receiver simply ignores the secret-message data, but it can nevertheless be decoded at the other end, the team has found. "The secret data is indistinguishable from silence-period traffic, so detection of SkypeHide is very difficult," says Mazurczyk. They found they could transmit secret text, audio or video during Skype calls at a rate of almost 1 kilobit per second alongside phone calls.

The team aims to present SkypeHide at a steganography conference in Montpellier, France, in June.

If you would like to reuse any content from New Scientist, either in print or online, please contact the syndication department first for permission. New Scientist does not own rights to photos, but there are a variety of licensing options available for use of articles and graphics we own the copyright to.

All comments should respect the New Scientist House Rules. If you think a particular comment breaks these rules then please use the "Report" link in that comment to report it to us.

If you are having a technical problem posting a comment, please contact technical support.

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Football: Transfer talks stall for AC Milan's Robinho

MILAN: AC Milan's bid to sell Robinho to Brazilian top flight side Santos floundered early on Saturday after the clubs failed to agree on a transfer fee, it was reported.

Milan have slapped a 10m-euro price tag on the talented Brazilian while Santos offered only seven million, according to ANSA news agency.

ANSA also reported that another Brazilian side that had shown an interest in purchasing Robinho, Atletico Mineiro, had now called off talks.

Citing Brazilian newspaper Folha de Sao Paulo, it said Atletico could not meet Milan's 10m euro asking price nor Robinho's wage demands.

Milan's former Brazilian striker Alexandre Pato on Thursday joined Brazilian side Corinthians in a four-year deal thought to be worth 15 million euros.

The Serie A giants sit seventh in Serie A, 17 points adrift of leaders Juventus, ahead of the visit of Siena on Sunday.

- AFP/xq

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Boehner's emotional remarks

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Feds: 2nd inmate who escaped Chicago jail captured

This undated photo provided by the FBI shows , Kenneth Conley one of two inmates who escaped from the Metropolitan Correctional Center in downtown Chicago Tuesday, Dec. 18, 2012.

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AP Photo/FBI,HONS

(AP) CHICAGO -- The second of two bank robbers who escaped last month from a high-rise federal jail in downtown Chicago was captured Friday at an apartment complex across the street from a suburban police department, authorities said.

Kenneth Conley was arrested in Palos Hills, according to U.S. Marshals Service spokeswoman Belkis Cantor. She said someone called local police Friday morning thinking they recognized Conley. FBI spokeswoman Joan Hyde said the Palos Hills Police Department took him into custody.

Conley fled the Metropolitan Correctional Center last month with Joseph "Jose" Banks, apparently by smashing a hole in a wall at the bottom of a narrow cell window and squeezing through before scaling down about 20 stories using a knotted rope made out of bed sheets. Banks was arrested without incident two days later at a home on the city's North Side.

A man who answered the phone at a number listed for Conley's brother, Nicholas Conley, in Orland Hills refused to answer questions and asked that the family be left alone. A message left for Conley's mother was not immediately returned.

This undated photo provided by the FBI shows Jose Banks, one of two inmates who escaped from the Metropolitan Correctional Center in downtown Chicago Tuesday, Dec. 18, 2012. Chicago Police Sgt. Michael Lazarro says their disappearance was discovered at about 8:45 Tuesday morning. Lazarro says the pair used a rope or bed sheets to climb from the building. (AP Photo/FBI,HONS

/

Uncredited

Jail officials did not notice for hours on the morning of the escape that Banks and Conley were gone. Surveillance video from a nearby street showed the two hopping into a cab shortly before 3 a.m. on Dec. 18. They had changed out of their orange jail-issued jumpsuits.

When the facility did discover the two men were gone around 7 a.m., what was found revealed a meticulously planned escape, including clothing and sheets shaped to resemble a body under blankets on beds, bars inside a mattress and even fake bars in the cells.

A massive manhunt involving state, federal and local law enforcement agencies was launched, as SWAT teams stormed into the home of a relative of Conley only to learn the two escapees had been there and left. The authorities searched other area homes and businesses -- even a strip club where Conley once worked.

Law enforcement officials left a host of questions unanswered, including how the men could collect about 200 feet of bed sheets and what they might have used to break through the wall of the federal facility.

Conley, 38, pleaded guilty last October to robbing a Homewood Bank last year of nearly $4,000. He wore a coat and tie during the robbery and had a gun stuffed in his waistband.

Banks, 37, known as the Second-Hand Bandit because he wore used clothes during his heists, had been convicted of robbing two banks and attempting to rob two others. Authorities say he stole almost $600,000, and most of that still is missing.

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Quadruple Amputee Gets Two New Hands on Life

It's the simplest thing, the grasp of one hand in another. But Lindsay Ess will never see it that way, because her hands once belonged to someone else.

Growing up in Texas and Virginia, Lindsay, 29, was always one of the pretty girls. She went to college, did some modeling and started building a career in fashion, with an eye on producing fashion shows.

Then she lost her hands and feet.

Watch the full show in a special edition of "Nightline," "To Hold Again," TONIGHT at 11:35 p.m. ET on ABC

When she was 24 years old, Lindsay had just graduated from Virginia Commonwealth University's well-regarded fashion program when she developed a blockage in her small intestine from Crohn's Disease. After having surgery to correct the problem, an infection took over and shut down her entire body. To save her life, doctors put her in a medically-induced coma. When she came out of the coma a month later, still in a haze, Lindsay said she knew something was wrong with her hands and feet.

"I would look down and I would see black, almost like a body that had decomposed," she said.

The infection had turned her extremities into dead tissue. Still sedated, Lindsay said she didn't realize what that meant at first.

Quadruple Amputee Undergoes Hand Transplant Surgery Watch Video

After Hand Transplant, Relearning How to Hold Watch Video

"There was a period of time where they didn't tell me that they had to amputate, but somebody from the staff said, 'Oh honey, you know what they are going to do to your hands, right?' That's when I knew," she said.

After having her hands and feet amputated, Lindsay adapted. She learned how to drink from a cup, brush her teeth and even text on her cellphone with her arms, which were amputated just below the elbow.

"The most common questions I get are, 'How do you type,'" she said. "It's just like chicken-pecking."

PHOTOS: Lindsay Ess Gets New Hands

Despite her progress, Lindsay said she faced challenges being independent. Her mother, Judith Aronson, basically moved back into her daughter's life to provide basic care, including bathing, dressing and feeding. Having also lost her feet, Lindsay needed her mother to help put on her prosthetic legs.

"I've accepted the fact that my feet are gone, that's acceptable to me," Lindsay said. "My hands [are] not. It's still not. In my dreams I always have my hands."

Through her amputation recovery, Lindsay discovered a lot of things about herself, including that she felt better emotionally by not focusing on the life that was gone and how much she hated needing so much help but that she also truly depends on it.

"I'm such an independent person," she said. "But I'm also grateful that I have a mother like that, because what could I do?"

Lindsay said she found that her prosthetic arms were a struggle.

"These prosthetics are s---," she said. "I can't do anything with them. I can't do anything behind my head. They are heavy. They are made for men. They are claws, they are not feminine whatsoever."

For the next couple of years, Lindsay exercised diligently as part of the commitment she made to qualify for a hand transplant, which required her to be in shape. But the tough young woman now said she saw her body in a different way now.

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