Re: Encumbered EC crypto algorithms in openssl?

2013-08-17 Thread Nico Williams
On Sat, Aug 17, 2013 at 8:49 PM, Scott Doty wrote: > That's actually a handy reference, for in looking at Curve25519, I came > across... > > http://cr.yp.to/ecdh/patents.html That's half the point, yes. It'd be all of the point if Curve25519 didn't also rock perf-wise. __

Re: Encumbered EC crypto algorithms in openssl?

2013-08-17 Thread Scott Doty
On 08/16/2013 08:02 PM, Michael Sierchio wrote: > > On Fri, Aug 16, 2013 at 10:40 PM, Nico Williams > wrote: > > If only we could agree to use DJB's Curve25519... > > > +1 > That's actually a handy reference, for in looking at Curve25519, I came across... http:

Re: How to securely encrypt identical files to identical ciphertext?

2013-08-17 Thread Unga
- Original Message - > From: Graham Leggett > To: "openssl-users@openssl.org" > Cc: "openssl-users@openssl.org" ; Roberto Spadim > > Sent: Saturday, August 17, 2013 9:46 AM > Subject: Re: How to securely encrypt identical files to identical ciphertext? > > On 17 Aug 2013, at 06:03, Un

simple file encrypt/decrypt

2013-08-17 Thread Ztatik Light
anyone have simple code for encrypting/decrypting a file with a specified key using a specified cipher ? i'm getting really weird bugs with my code, i can provide a properly encrypted file to test with

Re: How to securely encrypt identical files to identical ciphertext?

2013-08-17 Thread Graham Leggett
On 17 Aug 2013, at 06:03, Unga wrote: > My encrypted file is with you. It is encrypted without a salt. I'm scared you > may use a sophisticated system to decrypt it and read the sensitive info. I > use a per file not guessable 150 character password. This password is not > repeated, only reuse

Re: How to securely encrypt identical files to identical ciphertext?

2013-08-17 Thread Unga
From: Swair Mehta >To: "fr...@baggins.org" >Cc: "openssl-users@openssl.org" >Sent: Saturday, August 17, 2013 7:18 AM >Subject: Re: How to securely encrypt identical files to identical ciphertext? > > >On 16-Aug-2013, at 9:24 AM, Matt Caswell wrote: > >> On 16 August 2013 16:46, Swair Meh

Re: How to securely encrypt identical files to identical ciphertext?

2013-08-17 Thread Swair Mehta
On 16-Aug-2013, at 9:24 AM, Matt Caswell wrote: > On 16 August 2013 16:46, Swair Mehta wrote: >> On 16-Aug-2013, at 7:49 AM, Unga wrote: >> >>> Hi all >>> >>> I have a requirement to encrypt files, in such a way identical files should >>> generate identical ciphertexts. >>> >>> I plan to use a

Re: How to securely encrypt identical files to identical ciphertext?

2013-08-17 Thread Unga
> > From: Roberto Spadim >To: Unga >Cc: "openssl-users@openssl.org" >Sent: Saturday, August 17, 2013 6:14 AM >Subject: Re: How to securely encrypt identical files to identical ciphertext? > > > >hum, i will talk again with general cases, but it give nice ideas