UK case for holding terror suspects 'misleading'

 作者:尔朱灼     |      日期:2019-03-02 10:17:01
By The UK government’s stated case for holding terror suspects longer than 14 days without charge is misleading, according to a top computer security specialist. When home secretary Charles Clarke was trying to persuade the House of Commons to extend the detention period to 90 days, he argued that this was needed to break into encrypted files on suspects’ computers. MPs voted against the government’s planned increase, but backed a compromise 28-day limit. But Ross Anderson, professor of security engineering at the University of Cambridge, says that breaking into highly encrypted material is no longer possible. “You find the key lying around, or you give up.” Police investigators might usefully “spend a couple of days tossing a dictionary at the encryption software”, he says. This could provide access to a file containing the encryption key itself, but only if the suspect had been careless enough to choose an easily guessed password to protect it. Investigators might then spend a few more days trawling through the hard disc for passwords and clues, he adds. They would hunt, for example,