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Date: 2000-09-06
Ad PGP-Sicherheitsloch: Handbuch NSA-Sabotage-.-. --.- -.-. --.- -.-. --.- -.-. --.- -.-. --.- -.-. --.- zusammengefasst und mit allen nötigen Links - ein kleines Round-Up des Wissens darüber, wie die NSA ihr nicht genehme Software kompromittiert. -.-. --.- -.-. --.- -.-. --.- -.-. --.- -.-. --.- -.-. --.- relayed by g'o'tz ohnesorge <gohnesorge@lh- computertechnik.de> -.-. --.- -.-. --.- -.-. --.- -.-. --.- -.-. --.- -.-. --.- A pocket guide to NSA sabotage Doug Porter The NSA engages in sabotage, much of it against American companies and products. One campaign apparently occurred at about the time when PGP's most serious vulnerability was added. To understand the whole story requires some background. In Bruce Schneier's newsletter Crypto-Gram he told us last year about Lew Giles, said to be an NSA saboteur wrecking American privacy products in 1997. Schneier says that according to several sources Giles went from company to company, asking them to destroy the security of their own products, and arranging cover stories to protect them. According to Crypto-Gram sometimes Giles worked directly with engineers, with no managers around. The sabotage was always supposed to look like a mistake. At about the same time, PGP introduced "key recovery" with the hidden flaw recently covered worldwide, including Schneier's own clear description in Slashdot. Other serious vulnerabilities have been found in the PGP versions released then. For example, just last May PGP was found to generate weak keys on Linux and OpenBSD. The original report in BugTraq says the bug was introduced in version 5.0, released in 1997. Undoubtedly most security bugs are just bugs. But it's also very possible that some are backdoors. CNN and Network World detailed how the NSA openly strong arms companies, "leaning on software, switch and router vendors" to make them "add a government-approved back door into network gear." Companies working with the NSA, however unwillingly, include Netscape, Sun, and Microsoft. Chris Tolles of Sun says, "Everyone in Silicon Valley, including us, has to have specific staff -- highly paid experts -- to deal with them." If everyone's dealing with them, are any products secure? Taher Elgamal, who wrote Netscape's so called "data- recovery plan" as demanded by the spooks, said they didn't have a choice. Exports are about half the income for these businesses. In practice companies need NSA's permission to export security products, except for "export grade" junk. NSA only gives permission if the security is crippled in some way. Duncan Campbell reported in Interception Capabilities 2000 that NSA succeeded in compromising browsers from both Microsoft and Netscape, as well as Lotus Notes. The browsers' security was openly gutted by NSA's insistence on reducing key sizes to whatever the NSA can easily crack at the time. In the case of Lotus Notes the keys appeared to be longer, but just enough of each key was secretly given to the NSA. Mit sehr vielen Links http://cryptome.org/nsa-sabotage.htm -.- -.-. --.- - -.-. --.- -.-. --.- -.-. --.- -.-. --.- -.-. --.- -.-. --.- edited by published on: 2000-09-06 comments to [email protected] subscribe Newsletter - -.-. --.- -.-. --.- -.-. --.- -.-. --.- -.-. --.- -.-. --.- 
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