I'm looking to generate a short digital signature, perhaps 192
bits or so, using an asymmetrical algorithm. DSA seems to
have 320 bit signatures regardless of the key size used. Is
this really the case, or am I missing something? Ignoring for
the moment the wisdom of using signatures this
On Tue, Feb 07, 2006, Bob Mearns wrote:
I appreciate that the security of such a short signature is paltry.
In my application, the signature length (keeping it short) is as
important as the security (odd as that may seem). I've not found
a way to generate signatures as short as I'd like
On Tue, Feb 07, 2006 at 10:39:01AM -0800, Bob Mearns wrote:
I appreciate that the security of such a short signature is paltry.
In my application, the signature length (keeping it short) is as
important as the security (odd as that may seem). I've not found
a way to generate signatures as
Bob Mearns wrote:
I'm looking to generate a short digital signature, perhaps 192
bits or so, using an asymmetrical algorithm. DSA seems to
have 320 bit signatures regardless of the key size used. Is
this really the case, or am I missing something? Ignoring for
the moment the wisdom of
Out of pure curiosity -
I have recently been told that all existing/used protocols had been
designed without taking into account the eventual need to adapt to new
hash lengths. How true is that ? It seems to be a topic of concern for
some people since all commonly used hashes have been broken
TLS uses an XOR of an MD5 over the first 128 bits, and then an
unmodified remaining 32 bits for SHA-1.
However, please note that a successful attack against TLS would
require the ability to generate a plaintext that would make both the
MD5 and the SHA1 come out to the same value.
-Kyle H
On
I'm looking to generate a short digital signature, perhaps 192
bits or so, using an asymmetrical algorithm. DSA seems to
have 320 bit signatures regardless of the key size used. Is
this really the case, or am I missing something? Ignoring for
the moment the wisdom of using signatures this
