Date: Tue, 1 Jan 2019 11:49:02 -0500 From: Jeffrey Walton <noloader@...il.com> To: Torbjörn Granlund <tg@...lib.org> Cc: Niels Möller <nisse@...ator.liu.se>, oss-security@...ts.openwall.com, gmp-bugs@...lib.org Subject: Re: Asserts considered harmful (or GMP spills its sensitive information) On Tue, Jan 1, 2019 at 11:45 AM Jeffrey Walton <noloader@...il.com> wrote: > > On Tue, Jan 1, 2019 at 11:19 AM Torbjörn Granlund <tg@...lib.org> wrote: > > > > The assert that Jeffrey has hit is in sec_powm.c, > > > > ASSERT_ALWAYS (enb >= windowsize); > > > > As far as I can see, "enb" is the input argument to the win_size function, > > and "windowsize" is the return value. I'm waiting for more information, > > since it works fine in my build. Possible explanations I see are > > > > A reasonable assumption is that this user has modified the sources to > > cause this bug. The motive would be to support his auxesis about how > > insecure GMP is. > > My bad, I did not mean to imply this was a problem with GMP only. GMP > has a lot of company, like GnuPG and OpenSSL. s/OpenSSL/libsodium/
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