Slashdot Mirror


User: xquark

xquark's activity in the archive.

Stories
0
Comments
253
First seen
Last seen
Profile
(view on slashdot.org)

Comments · 253

  1. An idea stolen from bruce schneider on O-STEP In The Limelight · · Score: 1

    This idea was stolen from bruce schneider's
    "street performer protocol"

    The 1st person to implement this in the real world was stephan king,
    unfortunately for the open source world this initial experiment failed
    miserably. The never ended up releasing the final chapters to the book,
    many people who had put in their $1 or $2 never got it back because the
    escrow said it would cost more than the money they were getting back to
    get the money back to them. Which makes you wonder how on earth was it
    possible for people to send in $1 or $2 donations.
    Atm i think shamir is the only guy in the world that has proposed a decent
    and fair protocol for online companies to be able to handle transactions
    with unit prices of about $1 etc....

    Arash

  2. Re:ignorance is a bad habit. on Israeli Firm Claims Unbreakable Encryption · · Score: 1

    The algorithm proposed by the Israelis is a extended method of a generlaised non-linear cipher defunct by a group of cryptographers last year.
    More info can be obtained from Bruce Schnier's snake oil documents and also by looking at the cryptogram news-letter.
    Arash

  3. The weakest link paradox on Israeli Firm Claims Unbreakable Encryption · · Score: 1

    For people that are aware at the moment in the world of cryptography there is a weakest
    link problem occurring. As the proverb goes, "the chain is only as strong as its weakest link"
    and in this situation cryptography also falls into this category or conundrum. This is an inevitable
    problem for all cryptographic protocols.
    From the very beginning of the Caesar ciphers till today it has been concluded that any kind
    of encryption system requires keys, even the theoretically unbreakable OTP methods require keys.
    Today's key exchange protocols are all based on discrete log methods which are susceptible to
    factoring. Even though the symmetric ciphers of today are unbreakable with 256 and 512 bit key
    sizes, getting those keys on both machines for protocol to work, is not a secure a task as it is
    meant to be hence the weakest link paradox, AES, RC-X etc are all very strong but depending on 1
    method which is common to them all KEY EXCHANGE. Get that right and a lot of people will be out of
    a job ha ha ha ha ha ha :D.
    Hence it can be concluded that until the key exchange problem is solved there is no way anyone
    can say they have developed an "unbreakable" crypto-system.

    Arash Partow