NEW YORK (Reuters) — Researchers at a Swiss university have cracked the
technology used to keep people from eavesdropping on e-mail sent over the Web,
but U.S. experts said on Thursday that the impact would likely be minimal.
Professor Serge Vaudenay of the Swiss Federal Institute of Technology in
Lausanne found a way to unlock a message encrypted using Secure Socket Layer
protocol technology, according to a posting on the research institute’s Web
site.
However, U.S. cryptography experts said it was not the version of security that
most consumers use to shop online.
Rather, it is a version that only affects e-mail, is limited in scope and not
widely used, said Professor Avi Rubin, who is technical director of the
Information Security Institute at Maryland’s Johns Hopkins University.
‘Limited applicability’ As a cryptographer, I am impressed. That’s really nice
work. — Bruce Schneier, Counterpane Internet Security
In addition, an attacker would have to be in control of a network computer
located in the middle of the two people communicating over which the messages
were flowing, he said. “It’s possible, but it has limited applicability,” he
said.
He said patches are already available to fix the hole, which affects one
particular mode of OpenSSL. Like all co-called “open source” software, OpenSSL
is free software created by developers who can modify it at any time.
“This is not something that anybody really needs to worry about,” Rubin said.
Work impresses expert Bruce Schneier, chief technical officer at network
monitoring firm Counterpane Internet Security, agreed.
“As a cryptographer, I am impressed. That’s really nice work,” he said of the
research. “As a guy who wants to protect my secrets tomorrow, I don’t care.”
Besides the mitigating circumstances which lessen the likelihood that attackers
would be successful, Schneier said SSL is irrelevant to security because
attackers can more easily get at secret information while it is stored on
computers and servers at the sending and receiving ends.
“SSL protects the communications link between you and the Web” server, he said.
“Nobody bothers eavesdropping on the communications while it is in transit.”
