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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New highs for SGX's derivatives & commodities markets in 2012

SINGAPORE: The Singapore Exchange's derivatives and commodities markets achieved record highs in 2012.

However as in most global markets, trading activities declined.

Turnover dropped 12 per cent in 2012 to S$321.5 billion.

However securities market performance, as measured by the Straits Times Index, was up 20 per cent last year.

In December, turnover was up 39 per cent from a year earlier at S$23.2 billion.

Meanwhile, derivatives volume in 2012 reached a new high of 80.2 million contracts, up 11 per cent.

The volume of agri-commodity futures also grew 56 per cent in 2012 to 255,815 contracts.

- CNA/jc

Read More..

Get instant pulse readings with iSpO2 for iPhone, iPad

LAS VEGAS--The iSpO2 by Masimo ports the hospital checkup experience to iPhones and iPads and makes on-the-spot pulse readings available to active types wherever they are.

iSpO2 is a consumer pulse oximeter that connects to most Apple i-devices and comes with a sensor that you slip on to your ring finger for immediate oxygen, pulse rate, and perfusion index readings.

While not intended for home use, the idea behind iSpO2 is to help fitness fanatics, aviators, skiers, and extreme sports enthusiasts find out crucial information on their vitals without the need for a physician. Max Safai, senior vice president of business development, who demoed the unit for CNET, said that people can also send the data to their doctors for tracking purposes.

"This is our first consumer product," Safai said. "You really are, with this product, inheriting 24 years of experience ... measuring oxygen or motion when you're in distress or your hands are moving is very difficult."

The device retails for $249 on Amazon.com and is being shown off at
CES. Masimo has been making professional-grade medical equipment for 24 years.

Read More..

Best Pictures: 2012 Nat Geo Photo Contest Winners

• 
  
  
  
  
  
  
  
  











• 
  
  
  
  
  
  
  

  Winner: Places

  Photograph by Nenad Saljic

  A full moon illuminates the Matterhorn peak near Zermatt, Switzerland, in the winning image in the contest's Places category.

  Full moons occur every 29.5 days or so as the moon moves to the side of Earth directly opposite the sun, reflecting the sun's rays off its full face and appearing as a brilliant, perfectly circular disk.

  (Read more about full moons.)

  Published January 4, 2013

  
  











• 
  
  
  
  
  
  
  

  Winner: People

  Photograph by Micah Albert

  A picture of women scavenging refuse from a landfill in Dandora, Kenya, is the winning image in the People category of the National Geographic Photo Contest.

  The Dandora landfill, located in eastern Nairobi, is one of the largest in Africa.

  Published January 4, 2013

  
  











• 
  
  
  
  
  
  
  

  Photograph by Jason Ching

  Published January 4, 2013

  
  

');

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o.doSearchPage();
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store_43331.init();

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Hagel to Be Obama's Defense Secretary Nominee

Jan 6, 2013 4:52pm

(Junko Kimura/Getty Images)

WASHINGTON, D.C. — President Obama will nominate former senator Chuck Hagel to be his next Secretary of Defense tomorrow.

Senior officials within the administration and Capitol Hill confirmed the pick to ABC News today after the Nebraska Republican had emerged as a frontrunner among potential candidates several weeks ago.

Hagel, 66, is a decorated Vietnam veteran and businessman who served in the senate from 1997 to 2009. After having sat on that chamber’s Foreign Relations and Intelligence Committees,  he has in recent years gathered praise from current and former diplomats for his work on Obama’s Intelligence Advisory Board as well as the policy board of the current Defense Secretary Leon Panetta.

But the former lawmaker faces an upscale battle in the coming confirmation hearings in Congress; critics on both sides of the aisle have taken aim at his record toward Israel and what some have called a lack of experience necessary to lead the sprawling Pentagon bureaucracy or its operations.

Progressives have also expressed concern about comments he made in 1998, questioning whether an “openly, aggressively gay” James Hormel could be nominated to an ambassador position by then-President Clinton. Hagel apologized for the comments last month, adding that he also supported gays in the military – a position he once opposed.

Who Is Chuck Hagel? Meet Obama’s Top Pentagon Pick

The friction with his former colleagues has left a degree of uncertainty in the air going into the hearings. Today on ABC’s “This Week,” Senate Republican Leader Mitch McConnell demurred when asked whether he would support the man who, in 2008, he had championed for his candidness and stature in foreign policy.

“I’m going to wait and see how the hearings go and see whether Chuck’s views square with the job he would be nominated to do,” he told George Stephanopoulos.

Senator Lindsey Graham was more blunt in his opposition to Hagel on CNN. The Georgia Republican called Hagel an “in your face nomination,” and said he “would be the most antagonistic secretary of defense towards the state of Israel in our nation’s history.”

If confirmed, Hagel will join a crop of new cabinet members expected to join the president in his second term, including Sen. John Kerry, D-Mass., who was nominated in December to replace Hillary Clinton as Secretary of State.

ABC’s Elizabeth Hartfield and Devin Dwyer contributed reporting.

SHOWS: Good Morning America This Week World News

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.

Read More..

Football: Wolves sack Solbakken after FA Cup exit

LONDON: Stale Solbakken was sacked as manager of Championship side Wolves on Saturday, just hours after the club had been dumped out of the FA Cup by non-league Luton.

The struggling side, who were relegated from the Premier League last season, also terminated the contracts of assistant manager Johan Lange and Patrick Weiser, the first team coach.

Wolves are currently 18th in the Championship, having won just three out of their last 16 league games and a disappointing run of results culminated in Saturday's FA Cup third round 1-0 defeat to Luton Town.

Solbakken had only been in charge at Molineux for six months.

"Kevin Thelwell, head of football development and recruitment, will take charge of first team training until a new manager is appointed, assisted by development coach, Steve Weaver," said a club statement.

"The club would like to offer their thanks and best wishes to Stale, Johan and Patrick."

The 44-year-old Solbakken, who had previously been in charge of German side Cologne, replaced Terry Connor in the Wolves hotseat last summer.

He becomes the 10th Championship manager to leave his club this season while Wolves now search for their fourth boss in under a year.

Speaking after Saturday's match, the Norwegian had said he was not "embarrassed" by the defeat.

"There will be a lot of questions over me but that is normal, that's football and I have to take that, it's no problem," he said.

"I can put it right. I'm not embarrassed by the result, I can't fault the players' effort. First half we did well, but second half we didn't because our physical presence in the box was not enough."

- AFP/de

Read More..

Google to make Maps accessible to Windows Phone users

Google says it will no longer block Windows Phone users from accessing Google Maps, and that the blockage was about ensuring a good user experience, not about intentionally interfering with a rival product.

The blockage generated headlines, with various news outlets suggesting that it was not about poor functionality on the part of the mobile version of Internet Explorer but was more about behavior on the part of Google that, ironically, was beginning to resemble past behavior by Microsoft.

Google, of course, just dodged an antitrust bullet from the U.S. Federal Trade Commission, and it continues to face an investigation by the European Union.

The search and mobile-OS giant said the following in a statement sent to The Next Web today:

We periodically test Google Maps compatibility with mobile browsers to make sure we deliver the best experience for those users.

In our last test, IE mobile still did not offer a good maps experience with no ability to pan or zoom and perform basic map functionality. As a result, we chose to continue to redirect IE mobile users to Google.com where they could at least make local searches. The Firefox mobile browser did offer a somewhat better user experience and that's why there is no redirect for those users.

Recent improvements to IE mobile and Google Maps now deliver a better experience and we are currently working to remove the redirect. We will continue to test Google Maps compatibility with other mobile browsers to ensure the best possible experience for users.

For more details on the story, see Mary Jo Foley's article from earlier today: Google may need history lesson on blocking rivals' products.

Read More..

Best Pictures: 2012 Nat Geo Photo Contest Winners

• 
  
  
  
  
  
  
  
  











• 
  
  
  
  
  
  
  

  Winner: Places

  Photograph by Nenad Saljic

  A full moon illuminates the Matterhorn peak near Zermatt, Switzerland, in the winning image in the contest's Places category.

  Full moons occur every 29.5 days or so as the moon moves to the side of Earth directly opposite the sun, reflecting the sun's rays off its full face and appearing as a brilliant, perfectly circular disk.

  (Read more about full moons.)

  Published January 4, 2013

  
  











• 
  
  
  
  
  
  
  

  Winner: People

  Photograph by Micah Albert

  A picture of women scavenging refuse from a landfill in Dandora, Kenya, is the winning image in the People category of the National Geographic Photo Contest.

  The Dandora landfill, located in eastern Nairobi, is one of the largest in Africa.

  Published January 4, 2013

  
  











• 
  
  
  
  
  
  
  

  Photograph by Jason Ching

  Published January 4, 2013

  
  

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store_43331.init();

Read More..

City Answers Gang-Rape Cover-Up Allegations

As Steubenville, Ohio, prepares for the high-profile rape trial of two high school football players, officials, battling allegations of a cover-up, announced the creation of a new website today to debunk rumors and create what they said would be a transparent resource for the community.

"This site is not designed to be a forum for how the Juvenile Court ought to rule in this matter," the website, called Steubenville Facts, said.

A timeline of the case, beginning with the alleged gang rape of a 16-year-old girl at a party on Aug. 11-12, 2012, is posted on the site. Summaries of Ohio law relating to the case and facts about the local police force including statistics on how many graduated from Steubenville schools, is included.

The case gained national attention last week when hacking collective Anonymous leaked a video of Steubenville high school athletes mocking the 16-year-old female victim and making crude references to the alleged rape.

Steubenville Herald-Star, Michael D. McElwain/AP Photo

"It's disgusting, and I've had people calling, numerous people call here, upset, they have seen it, one woman, two women were crying, because of what they witnessed," Jefferson County Sheriff Fred Abdalla said. "It really is disgusting to watch that video."

Anonymous has called for more arrests, however Steubenville Police have said their hands are tied.

"Steubenville Police investigators are caring humans who recoil and are repulsed by many of the things they observe during an investigation," the website said, addressing the video. "Like detectives in every part of America and the world, they are often frustrated when they emotionally want to hold people accountable for certain detestable behavior but realize that there is no statute that allows a criminal charge to be made."

Occupy Steubenville, a grassroots group, estimated 1,300 people attended a rally today outside the Jefferson County Courthouse, where rape victims and their loved ones gathered to share their stories.

The father of a teenage rape victim was met with applause when he shared his outrage.

"I've tried to show my girl that not all men are like this, but only a despicable few," he said. "And their mothers that ignore the truth that they gave birth to a monster."

Authorities investigated the case and charged two Steubenville high school athletes on Aug. 22, 2012.

The teenagers face trial on Feb. 13, 2013 in juvenile court before a visiting judge.

Attorneys for the boys have denied charges in court.

Read More..