Re: [Lurk] Notes on preventing signing oracles

2016-10-24 Thread Daniel Migault
combination of a shared secret between the Edge Server and the Key > Server, associated to a sequence number address. There are probably other > maybe better ways to do and feel free to propose alternatives. > > > > > > BR, > > Daniel > > *From:* Lurk [m

Re: [Lurk] Notes on preventing signing oracles

2016-10-12 Thread Daniel Migault
: Lurk [mailto:lurk-boun...@ietf.org] On Behalf Of Kyle Rose Sent: Monday, July 18, 2016 11:23 AM To: Eric Rescorla Cc: LURK BoF Subject: Re: [Lurk] Notes on preventing signing oracles It's possible we can't do much to prevent creating a generic signing oracle for TLS 1.2, but for 1.3 w

Re: [Lurk] Notes on preventing signing oracles

2016-07-18 Thread Kyle Rose
It's possible we can't do much to prevent creating a generic signing oracle for TLS 1.2, but for 1.3 we can send precursors to the key owner and require it to reproduce the final input to the signature algorithm, constraining the adversary to signatures of messages of the form (0x20){32}("TLS 1.3,