On 18 December 2012 05:30, jeetendra gangele gangele...@gmail.com wrote:
Ok,
can you expain me how ec_compute_key work and specially this last argument.
Why its need hash value to calculate the secret key.
I need to generate the 56 BYtes shred key.
A KDF (Key Derivation Function) is
Yes I tried 64 bytes hash but I need 56 bytes only as I told.
see the below code I am trying with SHA512 but I need only 56 bytes not 64.
It looks like ECDH_compute_key trying to copy all 64 bytes into the
shared secret buffer?.
I want only 56 bytes,is there a way that I can get 56 bytes shared
On Tue, Dec 18, 2012 at 3:24 AM, Matt Caswell (fr...@baggins.org)
fr...@baggins.org wrote:
On 18 December 2012 05:30, jeetendra gangele gangele...@gmail.com wrote:
Ok,
can you expain me how ec_compute_key work and specially this last
argument.
Why its need hash value to calculate the
On 12/18/2012 8:53 PM, Jeffrey Walton wrote:
On Tue, Dec 18, 2012 at 3:24 AM, Matt Caswell (fr...@baggins.org)
fr...@baggins.org wrote:
On 18 December 2012 05:30, jeetendra gangele gangele...@gmail.com wrote:
Ok,
can you expain me how ec_compute_key work and specially this last
argument.
On Mon, Dec 17, 2012 at 11:16 PM, jeetendra gangele
gangele...@gmail.com wrote:
Hi,
Do we have support for 448 bit hash value generation in openssl.?
I looked into the header file and I did not find functiobn related to that.
Actually I need to compute shared key for ecdh and that should be
U mean to say I can generate 64 bytes and then I can ignore last 8
bytes? so I will get 56 bytes.
This value then I have to use as secret key for ECDH
On 18 December 2012 09:57, Jeffrey Walton noloa...@gmail.com wrote:
On Mon, Dec 17, 2012 at 11:16 PM, jeetendra gangele
gangele...@gmail.com
On Mon, Dec 17, 2012 at 11:50 PM, jeetendra gangele
gangele...@gmail.com wrote:
U mean to say I can generate 64 bytes and then I can ignore last 8
bytes? so I will get 56 bytes.
This value then I have to use as secret key for ECDH
https://www.google.com/#q=truncated+hash
Be careful of ECDH
Ok,
can you expain me how ec_compute_key work and specially this last argument.
Why its need hash value to calculate the secret key.
I need to generate the 56 BYtes shred key.
On 18 December 2012 10:32, Jeffrey Walton noloa...@gmail.com wrote:
On Mon, Dec 17, 2012 at 11:50 PM, jeetendra gangele
