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Re: Stupid XOR Question

>Date: Sat, 12 Aug 1995 10:05:16 -0700
>From: Anonymous User <[email protected]>
>Subject: Stupid XOR Question

>ok dumb questions here.........
>how do i xor a simple string of plaintext?

In C, you open file f and

  while (((c = getc(stdin))!=EOF)&&((d = getc(f))!=EOF))
    putc(c^d, stdout) ;

If I remember correctly, Adam Back <[email protected]> has a signature
block for the full C program to do this.  It's that tiny.

In a way, that program is better than RSA in 3 lines of PERL.  It's
provably unbreakable (provided the ranno source, f, is used only once and
is truly random).

 |Carl M. Ellison    [email protected]    http://www.clark.net/pub/cme/home.html  |
 |PGP: E0414C79B5AF36750217BC1A57386478 & 61E2DE7FCB9D7984E9C8048BA63221A2  |
 |  ``Officer, officer, arrest that man!  He's whistling a dirty song.''    |
 +----------------------------------------------------------- Jean Ellison -+