Re: [cryptography] Application Layer Encryption Protocols Tuned for Cellular?

2012-10-31 Thread Peter Gutmann
Jeffrey Walton writes: >Is anyone aware of of application layer encryption protocols with session >management tuned for use on cellular networks? > >[...] >From that description your problem isn't at the encryption-protocol level at all, you need a reliable transport mechanism for cellular netwo

Re: [cryptography] Application Layer Encryption Protocols Tuned for Cellular?

2012-10-31 Thread Nico Williams
On Wed, Oct 31, 2012 at 5:23 PM, Jeffrey Walton wrote: > The problem in practice is TCP/IP and later generation cellular > networks (especially 4G and the "All IP" implementations). All appears > OK when moving among cells if the IP address is forwarded and the > device remains connected. All hell

[cryptography] Application Layer Encryption Protocols Tuned for Cellular?

2012-10-31 Thread Jeffrey Walton
Hi All, Is anyone aware of of application layer encryption protocols with session management tuned for use on cellular networks? I need FIPS compliant ciphers, but that should be an implementation detail (I mention it because of setup and cipher text expansions). I have an application that perfor

Re: [cryptography] hashed passwords, iteration counts, and PBKDF2

2012-10-31 Thread Jon Callas
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Oct 31, 2012, at 1:58 PM, travis+ml-rbcryptogra...@subspacefield.org wrote: > * PGP Signed by an unknown key > > Thinking out loud; > > One reason why PBKDF2 requires the original password is so that you don't > repeatedly > hash the same thing

Re: [cryptography] Just how bad is OpenSSL ?

2012-10-31 Thread Jeffrey Walton
On Tue, Oct 30, 2012 at 11:29 AM, Thierry Moreau wrote: > Solar Designer wrote: >> >> On Mon, Oct 29, 2012 at 04:06:58PM -0400, Jeffrey Walton wrote: >> >>> The OpenSSL cleanse() function will likely fail on BIOs created from >>> storage and memory mapped files when used on SSDs due to write >>> l

Re: [cryptography] Just how bad is OpenSSL ?

2012-10-31 Thread Jeffrey Walton
On Fri, Oct 26, 2012 at 3:38 PM, Andy Isaacson wrote: > On Fri, Oct 26, 2012 at 06:29:47PM +, John Case wrote: >> So, given what is in the stanford report and then reading this rant >> about openssl, I am wondering just how bad openssl is ? I've never >> had to implement it or code with it, s

[cryptography] hashed passwords, iteration counts, and PBKDF2

2012-10-31 Thread travis+ml-rbcryptography
Thinking out loud; One reason why PBKDF2 requires the original password is so that you don't repeatedly hash the same thing, and end up a "short cycle", where e.g. hash(x) = x. At that point, repeated iterations don't do anything. I just realized, you don't necessarily need to put the original

Re: [cryptography] Just how bad is OpenSSL ?

2012-10-31 Thread Jeffrey Walton
On Tue, Oct 30, 2012 at 4:47 PM, danimoth wrote: > On 27/10/12 at 06:47pm, Patrick Pelletier wrote: > [cut] >> Besides the poor documentation, the other thing about OpenSSL is >> that it is definitely not "batteries included." Now, I'm not > [cut] > > I think they use a "batteries included" appro

Re: [cryptography] Just how bad is OpenSSL ?

2012-10-31 Thread Ben Laurie
On Tue, Oct 30, 2012 at 2:55 PM, Patrick Mylund Nielsen wrote: > Hopefully somebody's doing some kind of integrity check pre-release no > matter where it's hosted... :) > > In either case, happy to help if it is manhours you need, and I'm sure > others on this list are as well. I think what we ne