Re: [IPsec] [saag] trapdoor'ed DH (and RFC-5114 again)

2016-10-19 Thread Peter Gutmann
Nikos Mavrogiannopoulos writes: >I am not sure that the recommendations of this paper should be blindly >trusted. There are some inaccurate facts about a library I work on [0], but a >part of the abstract is also concerning: "We examine over 20 open-source >cryptographic libraries and application

Re: [IPsec] [saag] trapdoor'ed DH (and RFC-5114 again)

2016-10-19 Thread John Mattsson
I have not read the paper in detail, but I agree with the high level conclusions. If it were not for quantum computers, I think IETF should move to curve25519 as quickly as possible. With quantum computers the picture is more complicated as ECC would anyway need to be replaced with PQC in the not t

Re: [IPsec] [saag] trapdoor'ed DH (and RFC-5114 again)

2016-10-19 Thread Nikos Mavrogiannopoulos
On Tue, Oct 18, 2016 at 8:46 PM, John Mattsson wrote: > New paper “Measuring small subgroup attacks against Diffie-Hellman” > https://eprint.iacr.org/2016/995.pdf > “Cryptographic recommendations from standards committees are often too > weak or vague” > “However, the tangle of RFCs and standards