Re: hiding plaintext

2000-03-05 Thread David A. Wagner
In article <[EMAIL PROTECTED]>, Russell Nelson <[EMAIL PROTECTED]> wrote: > One could increase the difficulty of decryption by three or four > doublings by intermixing random data with plaintext in a message. If I understand correctly: To double the cost of exhaustive keysearch with this method

Re: A non-parellelizable form of hashcash

2000-03-26 Thread David A. Wagner
In article <[EMAIL PROTECTED]>, Bram Cohen <[EMAIL PROTECTED]> wrote: > The problem is to find a form of hashcash which can't be paralellized. Your technique appears to be a more complicated -- but closely related -- variant of the construction given in the following paper: ``Time-lock puzzles

Re: NSA back doors in encryption products

2000-05-25 Thread David A. Wagner
In article <[EMAIL PROTECTED]>, John Gilmore <[EMAIL PROTECTED]> wrote: > I have a well-founded rumor that a major Silicon Valley company was > approached by NSA in the '90s with a proposal to insert a deliberate > security bug into their products. They declined when they realized > that an alle

Re: random seed generation without user interaction?

2000-06-06 Thread David A. Wagner
In article <[EMAIL PROTECTED]>, <[EMAIL PROTECTED]> wrote: > So I'm curious about what all methods do folks currently use (on NT and unix) > to generate a random seed in the case where user interaction (e.g. the ol' > mouse pointer waving or keyboard tapping approaches) isn't a viable option?

Stambler patents

2000-07-05 Thread David A. Wagner
Does anyone know anything about the ``Stambler Internet Security Patents''? Apparently, Leon Stambler is claiming that he owns patents covering basic SSL technology---particularly the handshaking process. Seems like a stretch. I'm wondering whether I should be worried about any potential impact