Re: Proposal to Remove legacy TLS Ciphersuits Offered by Firefox

2013-12-15 Thread Brian Smith
On Sun, Dec 15, 2013 at 8:46 AM, Kurt Roeckx wrote: > But some people are also considering disabling it by default, > as I think all other where talking in this thread, not just > reduce the preference. > > > For the same reason, the server ciphersuite that we recommend at > > https://wiki.mozill

Re: Proposal to Remove legacy TLS Ciphersuits Offered by Firefox

2013-12-15 Thread Kurt Roeckx
On Sun, Dec 15, 2013 at 11:22:32AM -0500, Julien Vehent wrote: > On 2013-12-15 11:13, Kurt Roeckx wrote: > >On Sun, Dec 15, 2013 at 10:46:04AM -0500, Julien Vehent wrote: > >>On 2013-12-14 19:47, Kosuke Kaizuka wrote: > >>>Camellia is widely reviewed and chosen as a recommended cipher by > >>>sever

Re: Proposal to Remove legacy TLS Ciphersuits Offered by Firefox

2013-12-15 Thread Julien Vehent
On 2013-12-15 11:13, Kurt Roeckx wrote: On Sun, Dec 15, 2013 at 10:46:04AM -0500, Julien Vehent wrote: On 2013-12-14 19:47, Kosuke Kaizuka wrote: >Camellia is widely reviewed and chosen as a recommended cipher by >several independent committees. >If CAMELLIA_CBC is dropped by security reason, AE

Re: Proposal to Remove legacy TLS Ciphersuits Offered by Firefox

2013-12-15 Thread Kurt Roeckx
On Sun, Dec 15, 2013 at 10:46:04AM -0500, Julien Vehent wrote: > On 2013-12-14 19:47, Kosuke Kaizuka wrote: > >Camellia is widely reviewed and chosen as a recommended cipher by > >several independent committees. > >If CAMELLIA_CBC is dropped by security reason, AES_CBC should be also > >dropped. >

Re: Proposal to Remove legacy TLS Ciphersuits Offered by Firefox

2013-12-15 Thread Julien Vehent
On 2013-12-14 19:47, Kosuke Kaizuka wrote: Camellia is widely reviewed and chosen as a recommended cipher by several independent committees. If CAMELLIA_CBC is dropped by security reason, AES_CBC should be also dropped. There is another reason to drop CAMELLIA: AES with AES-NI is 8 times faste

Re: Longterm crypto support

2013-12-15 Thread Kurt Roeckx
On Sat, Dec 14, 2013 at 06:28:54PM -0800, Brian Smith wrote: > Kurt, > > Thanks for your suggestions. > > On Sat, Dec 14, 2013 at 12:46 PM, Kurt Roeckx wrote: > > > I think we need to come up with a plan to improve security in the > > long run. I think what we would like to see in general is:

Re: Does Firefox overwrite the master password on exiting to prevent a cold boot attack?

2013-12-15 Thread sworddragon2
Thanks for the detailed answer. > 1. my disk encryption keys I'm on ecrypfs so this should be fine. > 2. my OS user account passphrase Luckily they are hashed on my Linux system. > 3. my SSH keys > 4. my GPG keys As they are normally in the home directory they are protected by ecryptfs. S

Re: Longterm crypto support

2013-12-15 Thread Kurt Roeckx
On Sat, Dec 14, 2013 at 06:28:54PM -0800, Brian Smith wrote: > > - Only 2048 bit public, 128 bit symmetric, 256 bit elliptic, or > > better. > > > > Approximately 1.5% of Fx26 full handshakes that use RSA certs use keys > smaller than 2048 bits. So, enforcing the 2048 bit limit is not going to

Re: Proposal to Remove legacy TLS Ciphersuits Offered by Firefox

2013-12-15 Thread Kurt Roeckx
On Sat, Dec 14, 2013 at 05:41:55PM -0800, Brian Smith wrote: > Fx26Fx27 Change Cipher Suite > 0.00% 14.15% +14.15% TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 (new) > 0.00% 8.30% +8.30% TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (new) Are you sure you didn't switch those 2? At least you

Re: Proposal to Remove legacy TLS Ciphersuits Offered by Firefox

2013-12-15 Thread Kosuke Kaizuka
Camellia is the only possible alternative cipher to AES in TLS. AES, Camellia: 128-bit or 256-bit key-size 3DES: 112-bit key-size SEED: 128-bit key-size, almost no usage outside South Korea (disabled by default in Firefox 27+) > little supported, never negotiated cipher One of the largest website