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

2013-08-17 Thread Roberto Spadim
hum, i will talk again with general cases, but it give nice ideas the point about security is fisic access... you have problem with fisic access to disk? for example, if you put your data in a datacenter, you never know who is changing your hardware or what happen to hardware disks... at

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

2013-08-17 Thread Roberto Spadim
* a point in my last email... ... but underground world is nice and many times free =] ... the nice != legal, check your country law before doing crypt and others protection features

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

2013-08-17 Thread Unga
From: Roberto Spadim robe...@spadim.com.br To: Unga unga...@yahoo.com Cc: openssl-users@openssl.org 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

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 fr...@baggins.org wrote: On 16 August 2013 16:46, Swair Mehta swairme...@gmail.com wrote: On 16-Aug-2013, at 7:49 AM, Unga unga...@yahoo.com wrote: Hi all I have a requirement to encrypt files, in such a way identical files should generate

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

2013-08-17 Thread Unga
From: Swair Mehta swairme...@gmail.com To: fr...@baggins.org fr...@baggins.org Cc: openssl-users@openssl.org 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

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

2013-08-17 Thread Graham Leggett
On 17 Aug 2013, at 06:03, Unga unga...@yahoo.com 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

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 Unga
- Original Message - From: Graham Leggett minf...@sharp.fm To: openssl-users@openssl.org openssl-users@openssl.org Cc: openssl-users@openssl.org openssl-users@openssl.org; Roberto Spadim robe...@spadim.com.br Sent: Saturday, August 17, 2013 9:46 AM Subject: Re: How to securely

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 n...@cryptonector.com mailto:n...@cryptonector.com 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

Re: Encumbered EC crypto algorithms in openssl?

2013-08-17 Thread Nico Williams
On Sat, Aug 17, 2013 at 8:49 PM, Scott Doty scott+open...@sonic.net 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.