Date: Tue, 15 Mar 2011 11:43:25 +0100 From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@des.no> To: Miguel Lopes Santos Ramos <mbox@miguel.ramos.name> Cc: freebsd-security@freebsd.org Subject: Re: It's not possible to allow non-OPIE logins only from trusted networks Message-ID: <86ei68y88i.fsf@ds4.des.no> In-Reply-To: <1300050377.5900.12.camel@w500.local> (Miguel Lopes Santos Ramos's message of "Sun, 13 Mar 2011 21:06:17 %2B0000") References: <1299682310.17149.24.camel@w500.local> <alpine.BSF.2.00.1103100147350.1891@qvfongpu.qngnvk.ybpny> <1299769253.20266.23.camel@w500.local> <2E5C0CE8-4F70-4A4D-A91D-3274FD394C80@elvandar.org> <1299784361.18199.4.camel@w500.local> <20110310202653.GG9421@shame.svkt.org> <1299798547.20831.59.camel@w500.local> <20110313204054.GA5392@server.vk2pj.dyndns.org> <1300050377.5900.12.camel@w500.local>
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Miguel Lopes Santos Ramos <mbox@miguel.ramos.name> writes: > Ok, admittedly, it took me a while to see in what way that could be a > weekness. It's a bit like hoping for a little remaining security after > the password list was compromised. OPIE is not designed to protect against a stolen password list; it is designed to protect against replay attacks. With a key calculator, there is no password list to steal - but you need to make sure that nobody can sniff or shoulder-surf the password you type into the calculator. I know of at least one Java ME key calculator that will run on most Java-enabled smartphones. Unfortunately for Apple otakus, this does not include the iPhone, but the good news is that they can get a real phone for considerably less money. DES --=20 Dag-Erling Sm=C3=B8rgrav - des@des.no
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