One correction: The Karacell table is 2^16, not 2^64 bits long. Sorry about
that.
And as to the weak knapsack problem (Remember trapdoor knapsacks) are you
referring to:
https://en.wikipedia.org/wiki/Merkle%E2%80%93Hellman_knapsack_cryptosystem
I'll shut up now and let others post.
Russell
On Wed, Dec 26, 2012 at 9:38 PM, Jon Callas j...@callas.org wrote:
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I took a look at it. Amusing. I didn't spend a lot of time on it. Probably
not more than twice what it took me to write this.
It has an obvious problem with known plaintext. You
Yes, you can work backward from a known xor mask (due to a known plaintext)
to the master key. You just have to solve the Subset Sum problem several
times, serially:
https://en.wikipedia.org/wiki/Subset_sum
In particular as applies to Karacell, the Horowitz and Sahni approach
(essentially,
On Thu, Dec 27, 2012 at 9:18 AM, Russell Leidich pke...@gmail.com wrote:
there are plenty of Googleable papers showing the Counter Mode is weak
relative to (conventional) cipher-block-chaining (CBC) AES.
Really? For example?
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On Thu, Dec 27, 2012 at 1:35 PM, Ben Laurie b...@links.org wrote:
On Thu, Dec 27, 2012 at 9:18 AM, Russell Leidich pke...@gmail.com wrote:
there are plenty of Googleable papers showing the Counter Mode is weak
relative to (conventional) cipher-block-chaining (CBC) AES.
Really? For example?
I
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I took a look at it. Amusing. I didn't spend a lot of time on it. Probably not
more than twice what it took me to write this.
It has an obvious problem with known plaintext. You can work backward from
known plaintext to get a piece of their tumbler
25.12.2012 05:15 Steven Bellovin s...@cs.columbia.edu:.
Maybe this is a good algorithm, but I'm not holding my breath.
me neither
--Michael
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On 24/12/12 15:22 PM, Jeffrey Walton wrote:
Has anyone had the privilege of looking at the stronger than military
grade [encryption] scheme?
There is no such thing, really. Military grade is a term invented by
the civilian crypto marketeers to cash in on the secrecy of classified
schemes.
On Mon, Dec 24, 2012 at 12:22 PM, Jeffrey Walton noloa...@gmail.com wrote:
Has anyone had the privilege of looking at the stronger than military
grade [encryption] scheme?
http://innovblogdotcom.files.wordpress.com/2012/06/the-karacell-encryption-system-tech-paper1.pdf
Enjoy.
On Dec 24, 2012, at 8:19 AM, Jeffrey Walton noloa...@gmail.com wrote:
On Mon, Dec 24, 2012 at 8:03 AM, Ben Laurie b...@links.org wrote:
On Mon, Dec 24, 2012 at 12:22 PM, Jeffrey Walton noloa...@gmail.com wrote:
Has anyone had the privilege of looking at the stronger than military
grade
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