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SHA-1 Collisions for Meaningful Messages
mrogers writes "Following on the heels of last year's collision search attack against SHA-1, researchers at the Crypto 2006 conference have announced a new attack that allows the attacker to choose part of the colliding messages. "Using the new method, it is possible, for example, to produce two HTML documents with a long nonsense part after the closing </html> tag, which, despite slight differences in the HTML part, thanks to the adapted appendage have the same hash value." A similar attack against MD5 was announced last year."
I know this story is unrelated,
but I wanted to make sure it gets entered into the OSDS database.
from http://www.bradblog.com/?p=3305
BLOGGED BY Joseph Cannon ON 8/22/2006 7:23PM
The Men Who Knew Too Much? NSA Wiretapping Whistleblowers Found Dead in Italy and Greece
Adamo Bove and Costas Tsalikidis: Both uncovered a secret bugging system and both met untimely ends.
Was That Just A Coincidence? And Who Made Your Cell Phone?
Guest blogged by Joseph Cannon
Is someone murdering people who know too much about NSA wiretapping overseas?
Two whistleblowers -- one in Italy, one in Greece -- uncovered a secret bugging system installed in cell phones around the world. Both met with untimely ends. The resultant scandals have received little press in the United States, despite the profound implications for American critics of the Bush administration.
Last month, Italian telecommunications security expert Adamo Bove either leapt or was pushed from a freeway overpass; he left no note and had no history of depression. Last year (March, 2005), Greek telecommunications expert Costas Tsalikidis met with a similarly enigmatic end. Both had uncovered American attempts to eavesdrop on government officials, anti-war activists, and private businessmen.
The Bove case relates to the long-standing controversy over the CIA's kidnapping of cleric Abu Omar, who was flown to Egypt and tortured. The post-Berlusconi government of Italy is attempting to arrest and try all of the CIA personnel involved. Bove used mobile phone records to trace more than two dozen American agents.
Bove had also revealed that his employer, Telecom Italia, had allowed illegal "spyware" -- undetectable wiretaps -- to infest Italy's largest communications system. His testimony helped to uncover the unsettling relationship between SISMI chief Marco Mancini and Telecom Italia head Giuliano Tavaroli. (Mancini, recently arrested by Italian investigators, has also come under some suspicion for his possible role in the strange affair of Major General Nicola Calipari, killed by American troops in Iraq.) In the 1990s, Bove had received wide praise for helping to secure convictions of two bosses in the Camorra, Naples' answer to the Sicilian Mafia.
The case of Costas Tsalikidis -- an engineer for Vodaphone, Greece's top telecommunications firm -- offers a similar picture. Tsalikidis discovered an extraordinarily spohisticated piece of spyware within his company's network. The Prime Minister and other top officials were targeted, along with Greek military officers, anti-war activists, various business figures -- and a cell phone within the American embassy itself. This page gives a full list of the targets, very few of whom could be considered as having even a remote connection to terrorism.
As investigative journalists Paolo Pontoniere and Jeffrey Klein report:
The Vodaphone eavesdropping was transmitted in real time via four antennae located near the U.S. embassy in Athens, according to an 11-month Greek government investigation. Some of these transmissions were sent to a phone in Laurel, Md., near America's National Security Agency.
According to Ta Nea, a Greek newspaper, Vodafone's CEO privately told the Greek government that the bugging culprits were "U.S. agents." Because Greece's prime minister feared domestic protests and a diplomati
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