Date: Mon, 20 Oct 2014 09:04:57 -0400 From: "Bendler, Ehren" <ebendler@...na.com> To: "oss-security@...ts.openwall.com" <oss-security@...ts.openwall.com> Subject: RE: attacking hsts through ntp The symmetric schemes do work, but due to data structure sizing only MD5 and SHA-1 hashed PSKs are supported: http://bugs.ntp.org/show_bug.cgi?id=2039 They imply in the comments that it will take a new version of the NTP RFCs to get support for stronger hashing schemes. -----Original Message----- From: Stephen Röttger [mailto:stephen.roettger@...il.com] Sent: Monday, October 20, 2014 5:17 AM To: oss-security@...ts.openwall.com Subject: Re: [oss-security] attacking hsts through ntp >What about RFC 5906 and the current authentication schemes > (http://www.eecis.udel.edu/~mills/ntp/html/authentic.html) ? The protocol from RFC 5906 is completely broken: http://www.eecis.udel.edu/~mills/security.html http://zero-entropy.de/autokey_analysis.pdf The symmetric schemes are probably fine but hard to set up. But it looks like the NIST provides authenticated NTP: http://www.nist.gov/pml/div688/grp40/auth-ntp.cfm
Powered by blists - more mailing lists
Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.
Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.