Re: [openssl-dev] Potential timing problems in OpenSSL RSA implementation

2017-12-17 Thread Andy Polyakov
Hi, > I'd like to stress that this is highly speculative, it may very well be > that this is not exploitable in any practical way. But I thought it's > important enough that it should be public knowledge. (Also "This leaves > a small timing channel, [...] but it is not believed to be large > enoug

[openssl-dev] Potential timing problems in OpenSSL RSA implementation

2017-12-14 Thread Hanno Böck
Hi, As many have probably seen some people (including me) recently published the so-called ROBOT attack [1], which is the re-birth of the old Bleichenbacher attack against RSA in TLS. We mostly focussed on non-timing issues and OpenSSL is not among the vulnerable implementations. However during v