Performance of Yubikey fw >= 5.2.3 and Curve25519 in OpenPGP

2020-05-08 Thread Grzegorz Kulewski
Hello, Some time ago Yubico released Yubikeys 5 with new firmware capable of doing Curve25519 in OpenPGP (and not only). Unfortunately they don't offer any benchmarks so one can't be sure if the performance is decent vs. for example RSA 2048 and 4096. Also it seems that nobody published such

Re: Maximum keypair length...

2020-05-08 Thread Barry Smith via Gnupg-users
Thank you, Peter. My question is purely about the security of the encryption. There is no need in my proposed scenario for extra signing or overhead. Understand that I am suggesting the creation of a set of keys, one per day, less than 33 keys, generated by one central admin. Second, i am

Re: Performance of Yubikey fw >= 5.2.3 and Curve25519 in OpenPGP

2020-05-08 Thread Damien Goutte-Gattat via Gnupg-users
On Fri, May 08, 2020 at 12:49:03PM +0200, Grzegorz Kulewski wrote: Does anybody here have Curve25519 enabled Yubikey and did/could do such benchmarks? I have the following tokens: * a Yubikey NEO with a RSA-2048 key; * a Yubikey 5 with a Ed25519 key; * a FST-01G/Gnuk token with a Ed25519 key.

Re: Maximum keypair length...

2020-05-08 Thread Peter Pentchev
On Fri, May 08, 2020 at 01:27:22PM -0400, Barry Smith wrote: [formatting fixed, top-posting still considered weird] > On Thu, May 7, 2020, 11:00 Peter Pentchev wrote: > > > On Thu, May 07, 2020 at 07:33:06AM -0400, Barry Smith via Gnupg-users > > wrote: > > [formatting fixed; top-posting

Re: GnuPG 2.2.20 under Termux (Android) ...

2020-05-08 Thread Stefan Claas
Szczepan Zalega | Nitrokey via Gnupg-users wrote: > On 4/27/20 6:50 PM, Stefan Claas wrote: > > I see in your address 'Nitrokey' and I was wondering (I have USB on > > my Samsung A40) that a Nitrokey USB device would work properly with > > my Termux set-up, i.e. Nitrokey drivers which must be